title:
Effective role of unpolarized nonvalence partons in Drell-Yan single
  spin asymmetries

abstract:
  We perform numerical simulations of the Sivers effect from single spin
asymmetries in Drell-Yan processes on transversely polarized protons. We
consider colliding antiprotons and pions at different kinematic conditions of
interest for the future planned experiments. We conventionally name "framework
I" the results obtained when properly accounting for the various flavor
dependent polarized valence contributions in the numerator of the asymmetry,
and for the unpolarized nonvalence contribution in its denominator. We name
"framework II" the results obtained when taking a suitable flavor average of
the valence contributions and neglecting the nonvalence ones. We compare the
two methods, also with respect to the input parametrization of the Sivers
function which is extracted from data with approximations sometimes
intermediate between frameworks I and II. Deviations between the two approaches
are found to be small except for dilepton masses below 3 GeV. The Sivers effect
is used as a test case; the arguments can be generalized to other interesting
azimuthal asymmetries in Drell-Yan processes, such as the Boer-Mulders effect.


title: Precision Observables in the MSSM: W mass and the muon magnetic moment

abstract:
  The precision observables M_W and g-2 of the muon are discussed in the
framework of the MSSM. Recent progress in the evaluation of the theoretical
predictions is described, and the MSSM predictions are compared with the SM
predictions and the experimental values.


title:
Unitarity constraints for DIS off nuclei: predictions for electron-ion
  colliders

abstract:
  Future electron-ion colliders (eIC) will focus on the unitarity properties of
deep inelastic scattering (DIS) in the limit of strong nuclear absorption.
Strong nuclear shadowing and a large abundance of coherent diffraction are the
most striking consequences of unitarity, and here we report quantitative
predictions for these effects in the kinematical range of the planned eIC.


title:
QCD sum rule approach to the new mesons and the $g_{D_{sJ}DK}$ coupling
  constant

abstract:
  We use diquark-antidiquark currents to investigate the masses and partial
decay widths of the recently observed mesons $D_{sJ}^{+}(2317)$,
$D_0^{*0}(2308)$ and X(3872), considered as four-quark states, in a QCD sum
rule approach. In particular we investigate the coupling constant
$g_{D_{sJ}DK}$. We found that the $g_{D_{sJ}DK}$ obtained in this four-quark
scenario is smaller than the coupling constant obtained when $D_{sJ}^{+}(2317)$
is considered as a conventional $c\bar{s}$ state.


title: Hybrid Inflation Exit through Tunneling

abstract:
  For hybrid inflationary potentials, we derive the tunneling rate from field
configurations along the flat direction towards the waterfall regime. This
process competes with the classically rolling evolution of the scalar fields
and needs to be strongly subdominant for phenomenologically viable models.
Tunneling may exclude models with a mass scale below 10^12 GeV, but can be
suppressed by small values of the coupling constants. We find that tunneling is
negligible for those models, which do not require fine tuning in order to
cancel radiative corrections, in particular for GUT-scale SUSY inflation. In
contrast, electroweak scale hybrid inflation is not viable, unless the
inflaton-waterfall field coupling is smaller than approximately 10^-11.


title:
Spectator scattering at NLO in non-leptonic B decays: Leading penguin
  amplitudes

abstract:
  We complete the computation of the 1-loop (alpha_s^2) corrections to hard
spectator scattering in non-leptonic B decays at leading power in Lambda/m_b by
evaluating the penguin amplitudes. This extends the knowledge of these
next-to-next-to-leading-order contributions in the QCD factorization formula
for B decays to a much wider class of final states, including all
pseudoscalar-pseudoscalar, pseudoscalar-vector, and longitudinally polarized
vector-vector final states, except final states with eta or eta' mesons. The
new 1-loop correction is significant for the colour-suppressed amplitudes, but
turns out to be strongly suppressed for the leading QCD penguin amplitude
alpha_4^p. We provide numerical values of the phenomenological P/T and C/T
amplitude ratios for the pi pi, pi rho and rho rho final states, and discuss
corrections to several relations between electroweak penguin and tree
amplitudes.


title: Model study of the sign problem in the mean-field approximation

abstract:
  We argue the sign problem of the fermion determinant at finite density. It is
unavoidable not only in Monte-Carlo simulations on the lattice but in the
mean-field approximation as well. A simple model deriving from Quantum
Chromodynamics (QCD) in the double limit of large quark mass and large quark
chemical potential exemplifies how the sign problem arises in the Polyakov loop
dynamics at finite temperature and density. In the color SU(2) case our
mean-field estimate is in excellent agreement with the lattice simulation. We
combine the mean-field approximation with a simple phase reweighting technique
to circumvent the complex action encountered in the color SU(3) case. We also
investigate the mean-field free energy, from the saddle-point of which we can
estimate the expectation value of the Polyakov loop.


title: Astrophysical Limits on Lorentz Violation for All Charged Species

abstract:
  If Lorentz violation exists, it will affect the thresholds for pair creation
processes. Lorentz-violating operators that change the maximum velocities of
charged particles may increase or decrease the extinction rate of gamma-rays
moving through space. If the emissions from high-energy astrophysical sources
do not show any signs of anomalous absorption, this allows us to place bounds
on the Lorentz-violating c coefficients for multiple species of charged
particles. The bounds for a species of mass m_X based on observing photons at
an energy E can be O(m_X^2/E^2), which corresponds to limits at the
10^(-15)(m_X^2/m_e^2) level for the most energetic photons.


title: Weak interactions and quasi-stable particle energy loss

abstract:
  We discuss the interplay between electromagnetic energy loss and weak
interactions in the context of quasistable particle particle propagation
through materials. As specific examples, we consider staus, where weak
interactions may play a role, and taus, where they don't.


title: Holography, Pade Approximants and Deconstruction

abstract:
  We investigate the relation between holographic calculations in 5D and the
Migdal approach to correlation functions in large N theories. The latter
employs Pade approximation to extrapolate short distance correlation functions
to large distances. We make the Migdal/5D relation more precise by quantifying
the correspondence between Pade approximation and the background and boundary
conditions in 5D. We also establish a connection between the Migdal approach
and the models of deconstructed dimensions.


title: Contribution of $DK$ Continuum in the QCD Sum Rule for $D_{sJ}(2317)$

abstract:
  Using the soft-pion theorem and the assumption on the final-state
interactions, we include the contribution of $DK$ continuum into the QCD sum
rules for $D_{sJ}(2317)$ meson. We find that this contribution can
significantly lower the mass and the decay constant of $D_s(0^+)$ state. For
the value of the current quark mass $m_c(m_c)=1.286 {\rm GeV}$, we obtain the
mass of $D_s(0^+)$ $M=2.33 \pm 0.02 {\rm GeV}$ in the interval $s_0=7.5-8.0
{\rm GeV}^2$, being in agreement with the experimental data, and the vector
current decay constant of $D_s(0^+)$ $f_0=0.128 \pm 0.013 {\rm GeV}$, much
lower than those obtained in previous literature.


abstract:
  The bilocal expansion of Borel transform provides an efficient way of Borel
resummation with low order perturbations in QCD. Its applications to the heavy
quark pole mass, static potential, and lattice calculation are reviewed.


title: Electroweak Penguin and Leptophobic $Z^\prime$ model

abstract:
  We consider the leptophobic $Z^\prime$ model which can appear naturally in
the flipped SU(5) or string-inspired $E_6$ models. This model can be
constrained by measurements of the $B\to M \nu\bar{\nu}$ decays and $\Delta
m_s$. We find that although the latter give much stronger constraints on the
coupling than the former, they are complementary to each other.


title:
Dispersion representations and anomalous singularities of the triangle
  diagram

abstract:
  We discuss dispersion representations for the triangle diagram
$F(p_1^2,p_2^2,q^2)$, the single dispersion representation in $q^2$ and the
double dispersion representation in $p_1^2$ and $p_2^2$, with special emphasis
on the appearance of the anomalous singularities and the anomalous cuts in
these representations. For the double dispersion representation in $p_1^2$ and
$p_2^2$, the appearance of the anomalous cut in the region $q^2>0$ is
demonstrated, and a new derivation of the anomalous double spectral density is
given. We point out that the double spectral representation is particularly
suitable for applications in the region of $p_1^2$ and/or $p_2^2$ above the
two-particle thresholds. The dispersion representations for the triangle
diagram in the nonrelativistic limit are studied and compared with the triangle
diagram of the nonrelativistic field theory.


title:
Effects of the Running of the QCD Coupling on the Energy Loss in the
  Quark-Gluon Plasma

abstract:
  Finite temperature modifies the running of the QCD coupling alpha_s(k,T) with
resolution k. After calculating the thermal quark and gluon masses
selfconsistently, we determine the quark-quark and quark-gluon cross sections
in the plasma based on the running coupling. We find that the running coupling
enhances these cross sections by factors of two to four depending on the
temperature. We also compute the energy loss dE/dx of a high-energy quark in
the plasma as a function of temperature. Our study suggests that, beside
t-channel processes, inverse Compton scattering is a relevant process for a
quantitative understanding of the energy loss of an incident quark in a hot
plasma.


title:
Proton polarizability effect in the hyperfine splitting of the hydrogen
  atom

abstract:
  The contribution of the proton polarizability to the ground state hyperfine
splitting in the hydrogen atom is evaluated on the basis of isobar model and
evolution equations for the parton distributions. The contributions of the Born
terms, vector meson exchanges and nucleon resonances are taken into account in
the construction of the proton polarized structure functions $g_{1,2}(W,Q^2)$.
Numerical values of this effect are equal $(2.2\pm 0.8)\times 10^{-6}$ times
the Fermi splitting in electronic hydrogen and $(4.70\pm 1.04)\times 10^{-4}$
times the Fermi splitting in muonic hydrogen.


title:
Neutrino mass hierarchy and $\theta_{13}$ with a magic baseline
  beta-beam experiment

abstract:
  We underscore the physics advantage of an experiment where neutrinos produced
in a beta-beam facility at CERN are observed in a large magnetized iron
calorimeter (ICAL) at the India-based Neutrino Observatory (INO). The CERN-INO
distance is close to the so-called "magic" baseline which helps evade some of
the parameter degeneracies and allows for a better measurement of the neutrino
mass hierarchy and $\theta_{13}$. We expound the possibility of using
radioactive $^8B$ and $^{8}Li$ as the source isotopes for the $\nue$ and
$\anue$ beta-beam, respectively, and show that very good sensitivity to both
the mass hierarchy and $\theta_{13}$ is possible with a boost $\gamma$ in the
250-500 ballpark.


title: Weak interaction corrections to hadronic top quark pair production

abstract:
  In this paper we determine the weak-interaction corrections of order
$\alpha_s^2\alpha$ to hadronic top-quark pair production. First we compute the
one-loop weak corrections to $t \bar t$ production due to gluon fusion and the
order $\alpha_s^2\alpha$ corrections to $t \bar t$ production due to
(anti)quark gluon scattering in the Standard Model. With our previous result
this yields the complete corrections of order $\alpha_s^2\alpha$ to $gg$, $q
\bar q$, $q g$, and ${\bar q} g$ induced hadronic $t \bar t$ production with
$t$ and $\bar t$ polarizations and spin-correlations fully taken into account.
For the Tevatron and the LHC we determine the weak contributions to the
transverse top-momentum and to the $t \bar t$ invariant mass distributions. At
the LHC these corrections can be of the order of 10 percent compared with the
leading-order results, for large $p_T$ and $\mtt$, respectively. Apart from
parity-even $t \bar t$ spin correlations we analyze also parity-violating
double and single spin asymmetries, and show how they are related if CP
invariance holds. For $t$ (and $\bar t$) quarks which decay semileptonically,
we compute a resulting charged-lepton forward-backward asymmetry $A_{PV}$ with
respect to the $t$ ($\bar t$) direction, which is of the order of one percent
at the LHC for suitable invariant-mass cuts.


title: Electroweak effects in top-quark pair production at Hadron Colliders

abstract:
  Top-quark physics plays an important role at hadron colliders such as the
Tevatron collider at Fermilab or the upcoming Large Hadron Collider (LHC) at
CERN. Given the planned experimental precision, detailed theoretical
predictions are mandatory. In this article we present analytic results for the
complete electroweak corrections to gluon induced top-quark pair production,
completing our earlier results for the quark-induced reaction. As an
application we discuss top-quark pair production at Tevatron and at LHC. In
particular we show that, although small for inclusive quantities, weak
corrections can be sizeable for differential distribution.


title: About the holographic pseudo-Goldstone boson

abstract:
  Pseudo-Goldstone bosons in 4D strongly coupled theories have a dual
description in terms of 5D gauge theories in warped backgrounds. We introduce
systematic methods of computing the pseudo-Goldstone potential for an arbitrary
warp factor in 5D. When applied to electroweak symmetry breaking, our approach
clarifies the relation of physical observables to geometrical quantities in
five dimensions.


title: Leptonic CP violation: zero, maximal or between the two extremes

abstract:
  Discovery of the CP-violation in the lepton sector is one of the challenges
of the particle physics. We search for possible principles, symmetries and
phenomenological relations that can lead to particular values of the
CP-violating Dirac phase, $\delta$. In this connection we discuss two extreme
cases: the zero phase, $\delta = 0$, and the maximal CP-violation, $\delta =
\pm \pi/2$, and relate them to the peculiar pattern of the neutrino mixing. The
maximal CP-violation can be related to the $\nu_\mu - \nu_\tau$ reflection
symmetry. We study various aspects of this symmetry and introduce a generalized
reflection symmetry that can lead to an arbitrary phase that depends on the
parameter of the symmetry transformation. The generalized reflection symmetry
predicts a simple relation between the Dirac and Majorana phases. We also
consider the possibility of certain relations between the CP-violating phases
in the quark and lepton sectors.


title:
Probe R-parity Violating Supersymmetry Effects in $B\to
  K^{(*)}\ell^+\ell^-$ and $B_s\to \ell^+\ell^-$ Decays

abstract:
  We study the decays $B\to K^{(*)}\ell^+\ell^-$ and $B_s\to \ell^+\ell^-
(\ell=e,\mu)$ in the minimal supersymmetric standard model with R-parity
violation (RPV). From the recent measurements of their branching ratios, we
have derived new upper bounds on the relevant RPV coupling products, which are
stronger than the existing ones. Using the constrained parameter space, we
predict the RPV effects on the forward-backward asymmetries ${\mathcal
A}_{FB}(B\to K^{(*)}\ell^+\ell^-)$ and the branching ratios $ {\mathcal
B}(B_s\to \ell^{+}\ell^{-}) $. Our results of the forward-backward asymmetries
agree with the recent experiment data. It is also found that
$\mathcal{B}(B_s\to \ell^+\ell^-)$ could be enhanced several orders by the RPV
sneutrino exchange. The RPV effects on the dilepton invariant mass spectra of
$B\to K^{(*)}\ell^+\ell^-$ and the normalized ${\mathcal A}_{FB}(B\to
K^{(*)}\ell^+\ell^-)$ are studied in detail. Our results could be used to probe
RPV effects and will correlate with searches for direct RPV signals at LHC.


title:
A New Constraint for the Coupling of Axion-like particles to Matter via
  Ultra-Cold Neutron Gravitational Experiments

abstract:
  We present a new constraint for the axion monopole-dipole coupling in the
range of 1 micrometer to a few millimeters, previously unavailable for
experimental study. The constraint was obtained using our recent results on the
observation of neutron quantum states in the Earth's gravitational field. We
exploit the ultimate sensitivity of ultra-cold neutrons (UCN) in the lowest
gravitational states above a material surface to any additional interaction
between the UCN and the matter, if the characteristic interaction range is
within the mentioned domain. In particular, we find that the upper limit for
the axion monopole-dipole coupling constant is (g_p g_s)/(\hbar c)<2 x 10^{-15}
for the axion mass in the ``promising'' axion mass region of ~1 meV.


title: Higgs-Boson Production in Association with Heavy Quarks

abstract:
  Associated production of a Higgs boson with a heavy, i.e. top or bottom,
quark-anti-quark pair provide observation channels for Higgs bosons at the LHC
which can be used to measure the respective Yukawa couplings. For the light
supersymmetric Higgs boson we present SUSY-QCD corrections at the one-loop
level, which constitute a significant contribution to the cross section.


title: RG flow of the Polyakov-loop potential: First status report

abstract:
  We study SU(2) Yang-Mills theory at finite temperature in the framework of
the functional renormalization group. We concentrate on the effective potential
for the Polyakov loop which serves as an order parameter for confinement. In
this first status report, we focus on the behaviour of the effective
Polyakov-loop potential at high temperatures. In addition to the standard
perturbative result, our findings provide information about the ``RG improved''
backreactions of Polyakov-loop fluctuations on the potential. We demonstrate
that these fluctuations establish the convexity of the effective potential.


title:
Supersymmetric A_4 X Z_3 and A_4 Realizations of Neutrino Tribimaximal
  Mixing Without and With Corrections

abstract:
  In an improved application of the tetrahedral symmetry A_4 first introduced
by Ma and Rajasekaran, supplemented by the discrete symmetry Z_3 as well as
supersymmetry, a two-parameter form of the neutrino mass matrix is derived
which exhibits the tribimaximal mixing of Harrison, Perkins, and Scott. This
form is the same one obtained previously by Altarelli and Feruglio, and the
inverse of that obtained by Babu and He. If only A_4 is used, then corrections
appear, making tan^2(theta_{12}) differenet from 0.5, without changing
significantly sin^2(2 theta_{23}) from one or theta_{13} from zero.


title: Warm inflation dynamics in the low temperature regime

abstract:
  Warm inflation scenarios are studied with the dissipative coefficient
computed in the equilibrium approximation. Use is made of the analytical
expressions available in the low temperature regime with focus on the
possibility of achieving strong dissipation within this approximation. Two
different types of models are examined: monomial or equivalently chaotic type
potentials, and hybrid like models where the energy density during inflation is
dominated by the false vacuum. In both cases dissipation is shown to typically
increase during inflation and bring the system into the strong dissipative
regime. Observational consequences are explored for the amplitude of the
primordial spectrum and the spectral index, which translate into constraints on
the number of fields mediating the dissipative mechanism, and the number of
light degrees of freedom produced during inflation. This paper furthers the
foundational development of warm inflation dynamics from first principles
quantum field theory by calculating conservative lower bound estimates on
dissipative effects during inflation using the well established thermal
equilibrium approximation. This approximation does not completely represent the
actual physical system and earlier work has shown relaxing both the equilibrium
and low temperature constraints can substantially enlarge the warm inflation
regime, but these improvements still need further theoretical development.


title: Lepton Flavour Violating tau Decays in the Left-Right Symmetric Model

abstract:
  The Left-Right symmetric extension of the Standard Model with Higgs isospin
triplets can provide neutrino masses via a TeV scale seesaw mechanism. The
doubly charged Higgs bosons H^{\pm\pm}_L and H^{\pm\pm}_R induce lepton flavour
violating decays \tau^\pm \to lll at tree-level via a coupling which is related
to the Maki-Nakagawa-Sakata matrix (V_{\rm MNS}). We study the magnitude and
correlation of \tau^\pm \to lll and \mu\to e\gamma with specific assumptions
for the origin of the large mixing in V_{\rm MNS} while respecting the
stringent bound for \mu\to eee. It is also shown that an angular asymmetry for
\tau^\pm \to lll is sensitive to the relative strength of the H^{\pm\pm}_L and
H^{\pm\pm}_R mediated contributions and provides a means of distinguishing
models with doubly charged Higgs bosons.


title: Suppressing Proton Decay By Separating Quarks And Leptons

abstract:
  Arkani-Hamed and Schmaltz (AS) have shown that proton stability need not
originate from symmetries in a high energy theory. Instead the proton decay
rate is suppressed if quarks and leptons are spatially separated in a compact
extra dimension. This separation may be achieved by coupling five dimensional
fermions to a bulk scalar field with a non-trivial vacuum profile and requires
relationships between the associated quark and lepton Yukawa couplings. We
hypothesise that these relationships are the manifestation of an underlying
symmetry. We further show that the AS proposal may suggest that proton
stability \emph{is} the result of an underlying symmetry, though not
necessarily the traditional baryon number symmetry.


title: Quartification On An Orbifold

abstract:
  We investigate quartification models in five dimensions, with the fifth
dimension forming an $S^1/Z_2\times Z_2'$ orbifold. The orbifold construction
is combined with a boundary Higgs sector to break the quartified gauge group
directly to a group $H\subset SU(3)^4$ which is operative at the electroweak
scale. We consider $H=G_{SM}\otimes SU(2)_\ell$ and $H=G_{SM}$, where $G_{SM}$
is the standard model gauge group, and find that unification occurs only when
the remnant leptonic colour symmetry $SU(2)_\ell$ remains unbroken.
Furthermore, the demands of a realistic low energy fermion spectrum specify a
unique symmetry breaking route for the unifying case of $H=G_{SM}\otimes
SU(2)_\ell$. We contrast this with four dimensional quartification models where
unification may be achieved via a number of different symmetry breaking routes
both with and without the remnant $SU(2)_\ell$ symmetry. The boundary Higgs
sector of our model may be decoupled to achieve a Higgsless limit and we show
that the electroweak Higgs doublet may be identified as the fifth component of
a higher dimensional gauge field.


title: Dark Energy and Neutrino Model in SUSY

abstract:
  We discuss the effect of the supersymmetry breaking on the Mass Varying
Neutrinos(MaVaNs) scenario. Especially, the effect mediated by the
gravitational interaction between the hidden sector and the dark energy sector
is studied. A model including a chiral superfield in the dark sector and the
right-handed neutrino superfield is proposed. Evolutions of the neutrino mass
and the equation of state parameter are presented in the model.


title: Gluonic magnetic susceptibilities of the QCD vacuum

abstract:
  This paper has been withdrawn by the authors due to a serious technical error
in treating the quark form factors F in the gluon operators.


title:
High Density Strange Star Matter and Observed Parity Doubling of Excited
  Hadrons

abstract:
  Parity doubling is observed in hadron states around 1.5 GeV - and the
estimated energy density is found to be high. When a large excitation energy is
available and the pions decouple from the quarks, the QCD interaction is still
not perturbative. And signature of such a system can exist in the form of small
ratio of the shear viscosity to entropy density. This is true for an equation
of state which is applicable to the surface of strange star. We indicate the
correspondence of parity doubling with the apparently disconnected model
calculation of compactness of some pulsars.


title:
Effects of little Higgs models on single top production at the
  $e^{-}\gamma$ colliders

abstract:
  In the framework of the littlest Higgs($LH$) model and the littlest Higgs
model with T-parity($LHT$), We investigate the single top production process
$e^{-}\gamma\to \nu_{e}b\bar{t}$, and calculate the corrections of these two
models to the cross section of this process. We find that in the reasonable
parameter space, the correction terms for the tree-level $Wtb$ couplings coming
from the $LHT$ model can generate significantly corrections to the cross
section of this process, which might be detected in the future high energy
linear $e^{+}e^{-}$ collider($ILC$) experiments. However, the contributions of
the new gauge boson $W^{\pm}_{H}$ predicted by the $LH$ model to this process
is very small.


title: Neutrino tri-bi-maximal mixing from Delta(27)

abstract:
  The observed neutrino mixing, having a near maximal atmospheric neutrino
mixing angle and a large solar mixing angle, is close to tri-bi-maximal,
putting leptonic mixing in contrast with the small mixing of the quark sector.
We discuss a model in which Delta(27) (a subgroup of SU(3)) is the family
symmetry, and tri-bi-maximal mixing directly follows from the vacuum structure
enforced by the discrete symmetry. The model accounts for the observed quark
and lepton masses and the CKM matrix, as well as being consistent with an
underlying stage of Grand Unification.


title: Short-Baseline Active-Sterile Neutrino Oscillations?

abstract:
  We suggest the possibility that the anomalies observed in the LSND experiment
and the Gallium radioactive source experiments may be due to neutrino
oscillations generated by a large squared-mass difference of about 20 - 30
eV^2. We consider the simplest 3+1 four-neutrino scheme that can accommodate
also the observed solar and atmospheric neutrino oscillations. We show that, in
this framework, the disappearance of nu_e and nu_mu in short-baseline neutrino
oscillation experiments is mainly due to active-sterile transitions. The
implications of the first MiniBooNE results, appeared after the completion of
this paper, are discussed in an addendum.


title: Meson-Baryon s-wave Resonances with Strangeness -3

abstract:
  Starting from a consistent SU(6) extension of the Weinberg-Tomozawa (WT)
meson-baryon chiral Lagrangian (Phys. Rev. D74 (2006) 034025), we study the
s-wave meson-baryon resonances in the strangeness S=-3 and negative parity
sector. Those resonances are generated by solving the Bethe-Salpeter equation
with the WT interaction used as kernel. The considered mesons are those of the
35-SU(6)-plet, which includes the pseudoscalar (PS) octet of pions and the
vector (V) nonet of the rho meson. For baryons we consider the 56-SU(6)-plet,
made of the 1/2+ octet of the nucleon and the 3/2+ decuplet of the Delta.
Quantum numbers I(J^P)=0(3/2^-) are suggested for the experimental resonances
Omega*(2250)- and Omega*(2380)-. Among other, resonances with I=1 are found,
with minimal quark content sss\bar{l}l', being s the strange quark and l, l'
any of the the light up or down quarks. A clear signal for such a pentaquark
would be a baryonic resonance with strangeness -3 and electric charge of -2 or
0, in proton charge units. We suggest looking for K- Xi- resonances with masses
around 2100 and 2240 MeV in the sector 1(1/2^-), and for pi Omega- and K- Xi*-
resonances with masses around 2260 MeV in the sector 1(3/2^-).


title: QCD traveling waves beyond leading logarithms

abstract:
  We derive the asymptotic traveling-wave solutions of the nonlinear
1-dimensional Balitsky-Kovchegov QCD equation for rapidity evolution in
momentum-space, with 1-loop running coupling constant and equipped with the
Balitsky-Kovchegov-Kuraev-Lipatov kernel at next-to-leading logarithmic
accuracy, conveniently regularized by different resummation schemes. Traveling
waves allow to define "universality classes" of asymptotic solutions, i.e.
independent of initial conditions and of the nonlinear damping. A dependence on
the resummation scheme remains, which is analyzed in terms of geometric scaling
properties.


title: Strong and Weak Interactions in B to pi+ pi- K Decays

abstract:
  To describe the weak three-body B decays into pi+ pi- K, we recently derived
amplitudes based on two-body QCD factorization followed by pi+ pi- final state
interactions in isoscalar S- and isovector P-waves. We study here the
sensitivity of the results to the values of the B to f0(980) transition form
factor and to the effective decay constant of the f0(980).


title: Selfconsistent approximations, symmetries and choice of representation

abstract:
  In thermal field theory selfconsistent (Phi-derivable) approximations are
used to improve (resum) propagators at the level of two-particle irreducible
diagrams. At the same time vertices are treated at the bare level. Therefore
such approximations typically violate the Ward identities connected to internal
symmetries. Examples are presented how such violations can be tamed by a proper
choice of representation for the fields which describe the system under
consideration. These examples cover the issue of massless Goldstone bosons in
the linear sigma model and the Nambu--Jona-Lasinio model and the problem of
current conservation in theories with massive vector mesons.


title: Indirect Detection of Little Higgs Dark Matter

abstract:
  Little Higgs models with T parity contain an attractive dark matter
candidate, the heavy photon. We compute the cross section of the heavy photon
annihilation into Z-photon pairs, which turns out to be substantially higher
than the previously computed cross section for the two photon final state.
Unfortunately, even with this enhancement, the monochromatic photon flux from
galactic heavy photon annihilation is unlikely to be detectable by GLAST or the
currently operating atmospheric Cerenkov telescopes. We also compute the flux
of high-energy neutrinos from the annihilation of the heavy photons captured by
the Sun and the Earth. The maximum flux of upward-going muons due to such
neutrinos is about 1 yr^{-1}km^{-2}.


title:
Relation Between Chiral Susceptibility and Solutions of Gap Equation in
  Nambu--Jona-Lasinio Model

abstract:
  We study the solutions of the gap equation, the thermodynamic potential and
the chiral susceptibility in and beyond the chiral limit at finite chemical
potential in the Nambu--Jona-Lasinio (NJL) model. We give an explicit relation
between the chiral susceptibility and the thermodynamic potential in the NJL
model. We find that the chiral susceptibility is a quantity being able to
represent the furcation of the solutions of the gap equation and the
concavo-convexity of the thermodynamic potential in NJL model. It indicates
that the chiral susceptibility can identify the stable state and the
possibility of the chiral phase transition in NJL model.


title: Black Holes at the IceCube Neutrino Telescope

abstract:
  If the fundamental Planck scale is about a TeV and the cosmic neutrino flux
is at the Waxman-Bahcall level, quantum black holes are created daily in the
Antarctic ice-cap. We re-examine the prospects for observing such black holes
with the IceCube neutrino-detection experiment. To this end, we first revise
the black hole production rate by incorporating the effects of inelasticty,
i.e., the energy radiated in gravitational waves by the multipole moments of
the incoming shock waves. After that we study in detail the process of Hawking
evaporation accounting for the black hole's large momentum in the lab system.
We derive the energy spectrum of the Planckian cloud which is swept forward
with a large, O (10^6), Lorentz factor. (It is noteworthy that the boosted
thermal spectrum is also relevant for the study of near-extremal supersymmetric
black holes, which could be copiously produced at the LHC.) In the
semiclassical regime, we estimate the average energy of the boosted particles
to be less than 20% the energy of the neutrino-progenitor. Armed with such a
constraint, we determine the discovery reach of IceCube by tagging on "soft"
(relative to what one would expect from charged current standard model
processes) muons escaping the electromagnetic shower bubble produced by the
black hole's light descendants. The statistically significant 5-sigma excess
extends up to a quantum gravity scale ~ 1.3 TeV.


title: Dynamics of Multiquark Systems: Mass, Width and Exotics

abstract:
  Exotic multi-quark states are examined in the quark model and in QCD. Current
status of theoretical studies of the pentaquark Theta^+ is reported. We show
recent analyses of multi-quark components of baryons. A novel method to extract
a compact excited state in the lattice QCD is applied. We also discuss how to
determine mixings of different Fock components in the hadron in the QCD sum
rule approach.


title:
Relic abundance and detection prospects of neutralino dark matter in
  mirage mediation

abstract:
  We analyze thermal relic abundance of neutralino dark matter and discuss
future prospects of its direct and indirect detections in mirage mediation.


title: Has HyperCP Observed a Light Higgs Boson?

abstract:
  The HyperCP collaboration has observed three events for the decay Sigma^+ ->
p mu^+ mu^- which may be interpreted as a new particle of mass 214.3 MeV.
However, existing data from kaon and B-meson decays severely constrain this
interpretation, and it is nontrivial to construct a model consistent with all
the data. In this letter we show that the ``HyperCP particle'' can be
identified with the light pseudoscalar Higgs boson in the next-to-minimal
supersymmetric standard model, the A_1^0. In this model there are regions of
parameter space where the A_1^0 can satisfy all the existing constraints from
kaon and B-meson decays and mediate Sigma^+ -> p mu^+ mu^- at a level
consistent with the HyperCP observation.


title: On the Charged Higgs Bosons Effects in the Top Quark Decays

abstract:
  The collider experiments at the Tevatron and the LHC provide us the
possibility of probing the existence of a light charged Higgs boson. In this
paper we study semi-leptonic decay of a polarized top quark via the charged
Higgs boson ($t(\uparrow)\to H^{+}b \to l^{+}\nu_{l}b$). It is shown that the
asymmetry or spin correlation coefficient of the charged lepton depends on the
$\tan\beta$ and $M_{H^{\pm}}$ and is quite different from the Standard Model.
This sensitivity of asymmetry to $\tan\beta$ and $M_{H^{\pm}}$ could be
utilized in the experimental searches for the light charged Higgs for
separation of the signal from backgrounds in the $t\bar{t}\to
H^{+}W^{-}b\bar{b}\to\tau^{+}\nu_{\tau}\l^{-}\bar{\nu_{\l}}b\bar{b}$ (and vice
versa). It might be useful for obtaining better bounds in the
($\tan\beta,M_{H^{\pm}}$) plane too.


title: Measuring the a0-a2 pion scattering lengths through K to 3 pi decays

abstract:
  We discuss the recent Cabibbo's proposal to measure the pion-pion scattering
lengths combination a0-a2 from the cusp effect in the pi0-pi0 energy spectrum
at threshold for K+ to (pi0 pi0 pi+) and KL to (pi0 pi0 pi0). We estimate the
theoretical uncertainty of the a0-a2 determination at NLO in our approach and
obtain that it is not smaller than 5% for K+ to (pi0 pi0 pi+). One gets similar
theoretical uncertainties if the neutral KL to (pi0 pi0 pi0) decay data below
threshold are used instead. For this decay, there are very large theoretical
uncertainties above threshold due to cancellations and data above threshold
cannot be used to get the scattering lengths.


title: Quark Confinement: The Hard Problem of Hadron Physics

abstract:
  We give a brief overview of the problem of quark confinement in hadronic
physics, and outline a few of the suggested explanations of the confining
force.


title: Gauge-Higgs Unification on Flat Space Revised

abstract:
  Models with gauge-Higgs unification on a flat space are typically affected by
common problems, the main of which are the prediction of a too small top and
Higgs mass and a too low compactification scale. We show how, by breaking the
SO(4,1) Lorentz symmetry in the bulk and introducing a Z_2 ``mirror'' symmetry,
a potentially realistic model arises, in which all these problems are solved.


title: Kaluza-Klein Dark Matter from Deconstructed Universal Extra Dimensions

abstract:
  We consider Kaluza-Klein dark matter from deconstructed or latticized
universal extra dimensions and study in this model the positron flux from
Kaluza-Klein dark matter annihilation in the galactic halo.


title: New (virtual) Physics in the Era of the LHC

abstract:
  A simple extension of the Standard Model demonstrates that New Physics
non-reachable through direct production at LHC can induce up to 10% corrections
to the length of the unitarity triangle side, extracted from $\Delta m_{B_d}$.


title: Left and Right in small-x neutrino DIS

abstract:
  The color dipole analysis of nuclear effects in charge current DIS is
presented. The emphasis is put on the pronounced effect of left-right asymmetry
of shadowing in neutrino-nucleus DIS at small values of Bjorken $x$. Strikingly
different scaling behavior of nuclear shadowing for the left-handed
andright-handed $W^+$ is predicted. Large, about 25%, shadowing in the $Fe$
structure functions is predicted, which is important for a precise
determination of the P-odd nucleon structure functions $xF^{\nu(\bar\nu)}_3$
and $\Delta x F_3=xF_3^{\nu}-xF_3^{\bar \nu}$.


title: Mixed Sneutrino Dark Matter and the Ratio Omega(b)/Omega(dm)

abstract:
  It is known that the cosmological baryon density ($\Omega_{\rm{b}}$) and dark
matter density ($\Omega_{\rm{dm}}$) have strikingly similar values. However, in
most theories of the early Universe, each density is explained by separate
dynamics and consequently there is no compelling reason for this observation.
In this note, I briefly review a model in which the dark matter species
possesses a particle-antiparticle asymmetry. This asymmetry determines both the
baryon asymmetry and strongly affects the dark matter density, thus naturally
linking $\Omega_{\rm{b}}$ and $\Omega_{\rm{dm}}$. In these models it is shown
that sneutrinos can play the role of such dark matter.


title: The kaon optical potential modified by \Theta^+ Pentaquark excitation

abstract:
  We study the kaon nuclear optical potential including the effect of the
\Theta^+ pentaquark in a self-consistent approach, starting from an extension
of the Juelich meson-exchange potential as bare kaon-nucleon interaction.
Significant differences between a fully self-consistent calculation and the
low-density T\rho approximation are observed. Whereas te influence of the KN ->
\Theta^+ absorption process is found to be negligible, due to the small
\Theta^+ KN coupling, the two-nucleon mechanism (KNN -> \Theta^+ N), estimated
from the two-meson coupling of the pentaquark, provides the necessary
additional kaon absorption to reconcile with data the systematically low
theoretical K^+ nucleus reaction cross sections.


title: The soft fermion dispersion relation at next-to-leading order in hot QED

abstract:
  We study next-to-leading order contributions to the soft static fermion
dispersion relation in hot QED. We derive an expression for the complete
next-to-leading order contribution to the retarded fermion self-energy. The
real and imaginary parts of this expression give the next-to-leading order
contributions to the mass and damping rate of the fermionic quasi-particle.
Many of the terms that are expected to contribute according to the traditional
power counting argument are actually subleading. We explain why the power
counting method over estimates the contribution from these terms. For the
electron damping rate in QED we obtain: $\gamma_{QED} = \frac{e^2
T}{4\pi}(2.70)$. We check our method by calculating the next-to-leading order
contribution to the damping rate for the case of QCD with two flavours and
three coulours. Our result agrees with the result obtained previously in the
literature. The numerical evaluation of the nlo contribution to the mass is
left to a future publication.


title: Relating Leptogenesis to Low Energy CP Violation

abstract:
  In the minimal left-right symmetric model with spontaneous CP violation,
there are only two intrinsic CP violating phases to account for all CP
violation in both the quark and lepton sectors. In addition, the left-and
right-handed Majorana mass terms for the neutrinos are proportional to each
other due to the parity in the model. This is thus a very constrained
framework, making the existence of correlations among the CP violation in
leptogenesis, neutrino oscillation and neutrinoless double beta decay possible.


title: Chiral transition and mesonic excitations for quarks with thermal masses

abstract:
  We study the effect of a thermal quark mass, m_T, on the chiral phase
transition and mesonic excitations in the light quark sector at finite
temperature in a simple chirally-symmetric model. We show that while nonzero
m_T lowers the chiral condensate, the chiral transition remains of second
order. It is argued that the mesonic excitations have large decay rate at
energies below 2m_T, owing to the Landau damping of the quarks and the van Hove
singularities of the collective modes.


title: Baryogenesis from an Earlier Phase Transition

abstract:
  We explore the possibility that the observed baryon asymmetry of the universe
is the result of an earlier phase transition in which an extended gauge sector
breaks down into the $SU(3)_C \times SU(2)_L \times U(1)_Y$ of the Standard
Model. Our proto-typical example is the Topflavor model, in which there is a
separate $SU(2)_1$ for the third generation from the $SU(2)_2$ felt by the
first two generations. We show that the breakdown of $SU(2)_1 \times SU(2)_2
\to SU(2)_L$ results in lepton number being asymmetrically distributed
through-out the three families, and provided the SM electroweak phase
transition is {\em not} strongly first order, results in a non-zero baryon
number, which for parameter choices that can be explored at the LHC, may
explain the observed baryon asymmetry.


title: Varying "constants" in astrophysics and cosmology and ...

abstract:
  We review astrophysical, cosmological and terrestrial evidence for and
against the constancy of fundamental parameters of particle physics, and
discuss theoretical issues of unification and scalar-mediated forces, finding
that the current rate of variation is bounded by limits on violations of the
weak equivalence principle.


title:
Ward-Takahashi Identities, Magnetic Anomalies, and the Anticommutation
  Properties of the Fermion-Boson Vertex

abstract:
  It is well-known that following summing Feynman graphs, the fermion-boson
coupling vertex is modified according to gamma^u-->Gamma^u=gamma^u+Delta^u,
with Delta^u representing non-divergent perturbative corrections. Here, we
calculate the anticommutators specified by Gamma^uv=.5{Gamma^u,Gamma^v}, and
then explore some consequences of employing these as a metric tensor
g^uv=Gamma^uv(p',q,p) in momentum space. The challenge is that Gamma^u and
Gamma^uv must them be introduced in place of gamma^u and n^uv throughout the
Lagrangian density, denoted L', resulting in what appears, superficially, to be
different physics from what is known and observed. However, with a suitable
reparameterization of fermion rest masses m', interaction charges e' and
momentum vectors p^u' into their observed counterparts m, e and p^u, it turns
out that L' can be made to describe physics identical to that of the customary
QED Lagrangian density L at low photon momentum q^u-->0, including the observed
magnetic anomaly. That is,we prove that one is able to obtain
L(m,e,p^u)=L'(m',e',p^u') for q^u-->0. We find through the Ward-Takahashi
identity, as summarized in Figure 2, that interaction vertexes are proportional
to the difference between the ordinary and covariant momentum-space derivatives
of the metric tensor, and thus an indicator of curvature. Finally, we obtain
additional non-longitudinal terms in the Ward-Takahashi relation.


title:
Dispersive contributions to $e^+p/e^-p$ cross section ratio in forward
  regime

abstract:
  Two-photon exchange (TPE) contributions to elastic electron-proton scattering
in the forward regime are considered. The imaginary part of TPE amplitude in
these kinematics is related to the DIS nucleon structure functions. The real
part of the TPE amplitude is obtained from the imaginary part by means of
dispersion relations. We demonstrate that the dispersion integrals for the
relevant elastic $ep$-scattering amplitude converge and do not need
subtraction. This allows us to make clean prediction for the real part of the
TPE amplitude at forward angles. We furthermore compare $e^+p$ and $e^-p$ cross
sections which depends on the real part of TPE amplitude, and predict the
positron cross section to exceed the electron one by a few per cent, with the
difference ranging from 1.4% to 2.8% for electron $lab$ energies in the range
from 3 to 45 GeV. We furthermore predict that the absolute value of this
asymmetry grows with energy, which makes it promising for experimental tests.


title: Direct detection of neutralino dark mattter in non-standard cosmologies

abstract:
  We compute the neutralino direct detection rate in non-standard cosmological
scenarios where neutralinos account for the dark matter of the Universe.
Significant differences are found when such rates are compared with those
predicted by the standard cosmological model. For bino-like neutralinos, the
main feature is the presence of additional light ($m_\chi\lesssim 40\gev$) and
heavy ($m_\chi\gtrsim 600\gev$) neutralinos with detection rates within the
sensitivity of future dark matter experiments. For higgsino- and wino-like
neutralinos lighter than $m_\chi \sim 1\tev$, enhancements of more than two
orders of magnitude in the largest detection rates are observed. Thus, if dark
matter is made up of neutralinos, the prospects for their direct detection are
in general more promising than in the standard cosmology.


title:
Study of $K^*_0(1430)$ and $a_0(980)$ from $B\to K^*_0(1430)\pi$ and
  $B\to a_0(980)K$ Decays

abstract:
  We use the decay modes $B \to K^*_0(1430) \pi$ and $B \to a_0(980) K$ to
study the scalar mesons $K^*_0(1430)$ and $a_0(980)$ within perturbative QCD
framework. For $B \to K^*_0(1430) \pi$, we perform our calculation in two
scenarios of the scalar meson spectrum. The results indicate that scenario II
is more favored by experimental data than scenario I. The important
contribution from annihilation diagrams can enhance the branching ratios about
50% in scenario I, and about 30% in scenario II. The predicted branching ratio
of $B \to a_0(980) K$ in scenario I is also less favored by the experiments.
The direct CP asymmetries in $B \to K^*_0(1430) \pi$ are small, which are
consistent with the present experiments.


title: Neutrino masses in the economical 3-3-1 model

abstract:
  We show that, in frameworks of the economical 3-3-1 model, the suitable
pattern of neutrino masses arises from the three quite different sources - the
lepton-number conserving, the spontaneous lepton-number breaking and the
explicit lepton-number violating, widely ranging over the mass scales including
the GUT one: $u\sim O(1) \mathrm{GeV}$, $v\approx 246 \mathrm{GeV}$, $\om\sim
O(1) \mathrm{TeV}$ and $\mathcal{M}\sim \mathcal{O}(10^{16}) \mathrm{GeV}$. At
the tree-level, the model contains three Dirac neutrinos: one massless, two
large with degenerate masses in the order of the electron mass. At the one-loop
level, the left-handed and right-handed neutrinos obtain Majorana masses
$M_{L,R}$ in orders of $10^{-2}-10^{-3} \mathrm{eV}$ and degenerate in
$M_R=-M_L$, while the Dirac masses get a large reduction down to $\mathrm{eV}$
scale through a finite mass renormalization. In this model, the contributions
of new physics are strongly signified, the degenerations in the masses and the
last hierarchy between the Majorana and Dirac masses can be completely removed
by heavy particles. All the neutrinos get mass and can fit the data.


title: Evolution of Critical Correlations at the QCD Phase Transition

abstract:
  We investigate the evolution of the density-density correlations in the
isoscalar critical condensate formed at the QCD critical point. The initial
equilibrium state of the system is characterized by a fractal measure
determining the distribution of isoscalar particles (sigmas) in configuration
space. Non-equilibrium dynamics is induced through a sudden symmetry breaking
leading gradually to the deformation of the initial fractal geometry. After
constructing an ensemble of configurations describing the initial state of the
isoscalar field we solve the equations of motion and show that remnants of the
critical state and the associated fractal geometry survive for time scales
larger than the time needed for the mass of the isoscalar particles to reach
the two-pion threshold. This result is more transparent in an event-by-event
analysis of the phenomenon. Thus, we conclude that the initial fractal
properties can eventually be transferred to the observable pion-sector through
the decay of the sigmas even in the case of a quench.


title: Electric Dipole Moments in PseudoDirac Gauginos

abstract:
  The SUSY CP problem is one of serious problems in construction of realistic
supersymmetric standard models. We consider the problem in a framework in which
adjoint chiral multiplets are introduced and gauginos have Dirac mass terms
induced by a U(1) gauge interaction in the hidden sector. This is realized in
hidden sector models without singlet chiral multiplets, which are favored from
a recent study of the Polonyi problem. We find that the dominant contributions
to electron and neutron electric dipole moments (EDMs) in the model come from
phases in the supersymmetric adjoint mass terms. When the supersymmetric
adjoint masses are suppressed by a factor of \sim 100 compared with the Dirac
ones, the electron and neutron EDMs are suppressed below the experimental bound
even if the SUSY particle masses are around 1 TeV. Thus, this model works as a
framework to solve the SUSY CP problem.


title:
A quantum long time energy red shift: a contribution to varying $\alpha$
  theories

abstract:
  By analyzing the survival probability amplitude of an unstable state we show
that the energy corrections to this state in the long ($t \to \infty$) and
relatively short (lifetime of the state) time regions, are different. It is
shown that in the considered model the above corrections decrease to zero as $t
\to \infty$. It is hypothesized that this property could be detected by
analyzing the spectra of distant astrophysical objects. The above property of
unstable states may influence the measured values of possible deviations of the
fine structure constant $\alpha$ as well as other astrophysical and
cosmological parameters.


title:
Large Time-dependent CP Violation in B_s^0 System and Finite D^0-D^0bar
  Mass Difference in Four Generation Standard Mode

abstract:
  Combining the measured B_s mixing with b \to s\ell^+\ell^- rate data, we find
a sizable 4 generation t' quark effect is allowed, for example with m_{t'} \sim
300 GeV and V_{t's}^*V_{t'b} \sim 0.025 e^{\pm i 70^\circ}, which could underly
the new physics indications in CP violation studies of b \to s qbar q
transitions. With positive phase, large and negative mixing-dependent CP
violation in B_s system is predicted, \sin 2\Phi_{B_s} \sim -0.5 to -0.7. This
can also be probed via width difference methods. As a corollary, the short
distance generated D^0-D^0bar mass difference is found to be consistent with,
if not slightly higher than, recent B factory measurements, while CP violation
is subdued with \sin 2\Phi_D \sim -0.2.


title: Precision simulations with TAUOLA and PHOTOS

abstract:
  The status of the Monte Carlo programs for the simulation of tau-lepton
production and decay in high-energy accelerator experiments is reviewed. No
significant changes in the organization of the programs were introduced since
previous TAU conference, that is why we will concentrate on some physical
topics: (i) For TAUOLA Monte Carlo generator of tau-lepton decays, simulation
of five scalar final states based on the hadronic current became available for
the first time. As an example, simple, but realistic current for final states:
  2pi- pi+ 2pi0 nu_tau, pi- 4pi0 nu_tau and 3pi- 2pi+ nu_tau is presented. The
current is installed into TAUOLA. (ii) For the PHOTOS Monte Carlo, which
generates radiative corrections in arbirtary decays, new results on next to
leading order corrections became available for some decay modes. The complete
corrections were installed for leptonic Z and B decays into a pair of scalars.
(iii) During conference discussions, the importance of checking the uncertainty
of the overall normalization for KORALB and KKMC simulations was underlined.
Necessary steps to check the uncertainty and to adjust the programs to Belle
and BaBar conditions are also listed.


title: Detecting the dark matter annihilation at the ground EAS detectors

abstract:
  In this paper we study the possibility of detecting gamma rays from dark
matter annihilation in the subhalos of the Milky Way by the ground based EAS
detectors within the frame of the minimal supersymmetric standard model. Based
on the Monte Carlo simulation we also study the properties of two specific EAS
detectors, the ARGO and HAWC, and the sensitivities of these detectors on the
detection of dark matter annihilation. We find the ground EAS detectors have
the possibility to observe such signals. Conversely if no signal observed we
give the constraints on the supersymmetric parameter space, which however
depends on the subhalos properties.


title:
Model Independent Naturalness Bounds on Magnetic Moments of Majorana
  Neutrinos

abstract:
  We analyze the implications of neutrino masses for the magnitude of neutrino
magnetic moments. By considering electroweak radiative corrections to the
neutrino mass, we derive model-independent naturalness upper bounds on neutrino
magnetic moments, generated by physics above the electroweak scale. For
Majorana neutrinos, these bounds are weaker than present experimental limits if
$\mu_\nu$ if generated by new physics at $\sim$ 1 TeV, and surpass current
experimental sensitivity only for new physics scales $>$ 10 -- 100 TeV. The
discovery of a neutrino magnetic moment near present limits would thus signify
that neutrinos are Majorana particles.


title:
Strong phases, asymmetries, and SU(3) symmetry breaking in D --> K pi
  decays

abstract:
  Motivated by some new experimental data, we carry out a phenomenological
analysis of D --> K pi decays including both Cabibbo favored and doubly Cabibbo
suppressed modes. Two asymmetries, R(D^0) and R(D+), which are generated
through interference between Cabbibo favored and doubly Cabibbo suppressed D
--> K pi transitions, are predicted. The relative strong phase, delta_{K pi},
between D^0 --> K- pi+ and D^0 --> K+ pi- decays, is estimated. The theoretical
results agree well with the current measurements.


title: Quantum chromodynamics quark benzene

abstract:
  A six-quark state with the benzene-like structure is proposed and studied
based on color string model. The calculation with the quadratic confinement
show that such structure has the lowest energy among the various hidden color
six-quark structures proposed so far. Its possible effect on $NN$ scattering is
discussed.


title: On the relation between Unruh and Sokolov--Ternov effects

abstract:
  We show that the Sokolov--Ternov effect -- the depolarization of particles in
storage rings coming from synchrotron radiation due to spin flip transitions --
is physically equivalent to the Unruh effect for circular acceleration if one
uses a spin 1/2 particle as the Unruh--DeWitt detector. It is shown that for
the electron, with gyromagnetic number $g \approx 2$, the exponential
contribution to the polarization, which usually characterizes the Unruh effect,
is "hidden" in the standard Sokolov-Ternov effect making it hard to observe.
Thus, our conclusions are different in detail from previous work.


title:
On multi-particle functions and pion-decay constant in
  Nambu--Jona-Lasinio model

abstract:
  The system of second-order equations of mean-field expansion is considered
for Nambu--Jona-Lasinio model with chiral symmetry of SU(2)-group. The system
includes equations for four-particle and three-particle functions and also
equations for next-to-leading two-particle function and next-to-next-to-leading
quark propagator. Exact solutions for four-particle and three-particle
equations are obtained. The solution for four-particle function is a
disconnected combination of the leading-order two-particle functions. The
connected part of three-particle function includes two-meson and three-meson
contributions. The solution of three-particle equation permits to close the
equation for next-to-leading two-particle function and to calculate a
correction to pion-decay constant $f_\pi$. This correction increases from 14%
to 28% when values of quark condensate varies from $-(210 MeV)^3$ to $-(250
MeV)^3$.


title: Off-shell and non-static contributions to heavy-quarkonium production

abstract:
  We have shown that if one relaxes the constraint that the quarks in a heavy
quarkonium are at rest and on-shell, new contributions to the discontinuity of
the production amplitude appear. These can be seen as a s-cut in the amplitude
and are on the same footage as the classical cut of the Colour-Singlet Model
(CSM), where the heavy quarks forming the quarkonium are put on-shell by
hypothesis. We treat this cut in a gauge-invariant manner by introducing
necessary new 4-point vertices, suggestive of the colour-octet mechanism. We
have further shown that this cut contributes at least as much as the LO CSM at
large P_T. However, the 4-point vertices cannot be totally constrained and an
ambiguity remains to what concerns their actual contribution. Theoretical
insights from meson photoproduction are discussed in that context.


title: Proton Stability In Supersymmetric SU(5)

abstract:
  Within supersymmetric SU(5) GUT we suggest mechanisms for suppression of
baryon number violating dimension five and six operators. The mechanism is
based on the idea of split multiplets (i.e. quarks and leptons are not coming
from a single GUT state) which is realized by an extension with additional
vector-like matter. The construction naturally avoids wrong asymptotic relation
$\hat{M}_D=\hat{M}_E$. Thus, the long standing problems of the minimal SUSY
SU(5) GUT can be resolved.
  In a particular example of flavor structure and with additional ${\cal
U}(1)\tm {\cal Z}_{3N}$ symmetry we demonstrate how the split multiplet
mechanism works out. Namely, the considered model is compatible with successful
gauge coupling unification and realistic fermion mass pattern. The nucleon
decay rates are relatively suppressed and can be well compatible with current
experimental bounds.


title:
The continuum and interference effect in $e^+e^-\to D^0\bar{D}^0,
  D^+D^-$ processes

abstract:
  In the $e^+e^-$ annihilation processes $e^+e^-\to D^0\bar{D}^0, D^+D^-$ near
or above the threshold of $D\bar{D}$, there are not only the resonance
contribution $e^+e^-\to \psi (3770)\to D^0\bar{D}^0, D^+D^-$, but also the
continuum contribution through virtual photon directly $e^+e^-\to \gamma^*\to
D^0\bar{D}^0, D^+D^-$. The amplitudes through virtual photon directly and
through resonance can interfere seriously. We consider the continuum and
interference effect in the $D\bar{D}$ production process in $e^+e^-$
annihilation. We find that the effect is significant near and above the
threshold of the $D\bar{D}$ mesons.


title: Detecting the ambient neutralino dark matter particles at accelerator

abstract:
  In this work, we present a new strategy to investigate the possibility of
direct detection of the ambient neutralino matter at accelerator. We calculate
the cross sections for both elastic and inelastic scattering processes of the
dark matter particles with the beam particles at $e^+e^-$ and hadron colliders.


title:
Nature of the f_0(600) from its N_c dependence at two loops in
  unitarized Chiral Perturbation Theory

abstract:
  By using unitarized two-loop Chiral Perturbation Theory partial waves to
describe pion-pion scattering we find that the dominant component of the
lightest scalar meson does not follow the q-qbar dependence on the number of
colors that, in contrast, is obeyed by the lightest vectors. The method
suggests that a subdominant q-qbar component of the f_0(600) possibly
originates around 1 GeV.


title: Impact of Four-Quark Condensates on In-Medium Effects of Hadrons

abstract:
  Spectral properties of hadrons in nuclear matter are treated in the framework
of QCD sum rules. The influence of the ambient strongly interacting medium is
encoded in various condensates. Especially, the structure of different
four-quark condensates and their density dependencies in light quark systems
are exemplified for the omega meson and the nucleon.


title: Mesons and Glueballs: A Quantum Field Approach

abstract:
  The spectrum of two-particle bound states is investigated within a
relativistic quantum-field model of interacting quarks and gluons confined
analytically. The hadronization process of mesons and glueballs is described by
using the Bethe-Salpeter equation. Provided by a minimal set of physical
parameters (the quark masses, the coupling constant and the confinement scale),
the model satisfactorily describes the meson ground-states, orbital and radial
excitations in a wide range from $140 {\rm MeV}$ to $9.5 {\rm GeV}$. The
estimated values for the coupling constant and the lowest-state glueball mass
are in reasonable agreement with experimental data.


title: Mesons and diquarks in Coulomb-gauge QCD

abstract:
  I demonstrate how confinement in Coulomb-gauge QCD makes quark-quark states
of the color anti-triplet (diquarks) move out of the physical spectrum. Mesons
as color singlet quark-antiquark states, on the other hand have finite masses
and for highly excited states in the meson spectra effective restoration of
chiral symmetry can be observed.


title:
Event Generation for Next to Leading Order Chargino Production at the
  International Linear Collider

abstract:
  We present a Monte-Carlo event generator for simulating chargino pair
production at the ILC at next-to-leading order in the electroweak couplings. We
consider two approaches of including photon radiation. A strict fixed-order
approach allows for comparison and consistency checks with published
semianalytic results in the literature. A version with soft- and hard-collinear
resummation of photon radiation, which combines photon resummation with the
inclusion of the NLO matrix element for the production process, avoids negative
event weights, so the program can simulate physical (unweighted) event samples.
Photons are explicitly generated throughout the range where they can be
experimentally resolved. In addition, it includes further higher-order
corrections unaccounted for by the fixed-order method. Inspecting the
dependence on the cutoffs separating the soft and collinear regions, we
evaluate the systematic errors due to soft and collinear approximations for NLO
and higher-order contributions. In the resummation approach, the residual
uncertainty can be brought down to the per-mil level, coinciding with the
expected statistical uncertainty at the ILC. We closely investigate the
two-photon phase space for the resummation method. We present results for cross
sections and event generation for both approaches.


title: Low-energy Variety of Asymmetric SUSY Flavor Structure

abstract:
  In this letter we study the low-energy phenomenology and cosmological
implications of supersymmetric grand unified theory with asymmetric flavor
structure, which is suggested by the recent observation of fermion masses and
mixing angles. The predictions of the scenario are rather dependent on a Yukawa
parameter fixed by group-theoretical argument. A reduced value of the parameter
gives a resolution to the sign problem of supersymmetric Higgs mass \mu, with
which the theory becomes simultaneously consistent with the experimental data
of bottom/tau mass ratio, flavor-changing rare decay of bottom quark, and the
muon anomalous magnetic moment. The relic abundance of the lightest
superparticle as cold dark matter of the universe is also investigated in light
of the three-years WMAP result. A new source of flavor violation is found in
the D-term induced scalar masses, that is a distinctive signature of the
generation asymmetry.


title: Total neutrino and antineutrino nuclear cross sections around 1 GeV

abstract:
  We investigate neutrino-nucleus interactions at energies around 1 GeV. In
this regime, the main contributions to the cross sections come from
quasi-elastic and $\Delta$ production processes. Our formalism, based on the
Impulse Approximation is well suited to describe both types of interactions. We
focus on a series of important nuclear effects in the interaction of electron
neutrinos with $^{16}O$, also relevant to future $\beta$-Beams. Our results
show that the Fermi gas model, widely used in data analysis of neutrino
experiments, overestimates the total cross sections by as much as 20 %.


title: Cooling of a Compact Star with a LOFF Matter Core

abstract:
  Specific heat and neutrino emissivity due to direct URCA processes for quark
matter in the color superconductive Larkin-Ovchinnikov-Fulde-Ferrell (LOFF)
phase of Quantum-Chromodynamics have been evaluated. The cooling rate of
simplified models of compact stars with a LOFF matter core is estimated.


title: Electroweak Baryogenesis in the nMSSM

abstract:
  In this talk, electroweak baryogenesis in the nMSSM is discussed. We focus on
differences compared to the MSSM. We conclude that electroweak baryogenesis in
the nMSSM is rather generic. Still, sfermions of the first two generations are
required to be heavy to evade constraints from electric dipole moments.


title: l --> l' gamma in the Lepton Number Violating MSSM

abstract:
  A minimal particle content supersymmetric model with a discrete Z_3 symmetry,
allowing lepton number violating terms, is studied. Within this model, the
neutrino masses and mixing can be generated by lepton number violating
couplings. Choosing parameters which correctly describe both the masses and
mixing in the neutrino sector, we consider their repercussions in flavour
violating radiative lepton decays, l --> l' gamma. Such decays have not been
observed and, accordingly, soon to be improved, upper bounds on their branching
ratios exist. We do not assume dominance of either the bilinear or trilinear
couplings. We note that certain parameter sets, which correctly describe the
neutrino sector, will also generate observable branching ratios, some of which
are already precluded, and suggest four such sets as Benchmark scenarios.


title: Exploring backward pion electroproduction in the scaling regime

abstract:
  We use general relations between the Transition Distribution Amplitudes
(TDAs), entering the description of the p -> pi0 transition, and the proton
Distribution Amplitudes (DAs) in the soft-pion limit to estimate the size of
the amplitude for backward electroproduction of pi0 at large Q2.


title: Numerical symmetrization of state of identical particles

abstract:
  The method of numerical symmetrization of state of identical particles
proposed by us before is clarified and discussed.


title: A Review of Instanton Quarks and Confinement

abstract:
  We review the recent progress made in understanding instantons at finite
temperature (calorons) with non-trivial holonomy, and their monopole
constituents as relevant degrees of freedom for the confined phase.


title:
Total resummation of leading logarithms vs standard description of the
  Polarized DIS

abstract:
  Total resummation of leading logarithms of x contributing to the
spin-dependent structure function g_1 ensures its steep rise at small x. DGLAP
lacks such a resummation. Instead, the DGLAP expressions for g_1 are
complemented with special phenomenological fits for the initial parton
densities. The singular factors x^{-\alpha} in the fits mimic the resummation
and also ensure the steep (power-like) rise of g_1 at the small-x region.
Furthermore, DGLAP by definition cannot describe the region of small Q^2
whereas our approach can do it.


title: Improved Higgs Naturalness with Supersymmetry

abstract:
  We present a supersymmetric model of electroweak symmetry-breaking exhibiting
improved naturalness, wherein the stop mass can be pushed beyond the reach of
the Large Hadron Collider without unnatural fine tuning. This implies that
supersymmetry may still solve the hierarchy problem, even if it eludes
detection at the LHC.


title: Brane-bulk energy exchange and the Universe as a global attractor

abstract:
  The assumption that our Universe is close to a late time fixed point of the
equations of cosmology, leads to a modification of the latter to include energy
exchange between the matter and the "dark energy". The brane-world scenario
provides a natural set-up for such energy exchange and is analyzed in detail.
The role of brane-bulk energy exchange and of an induced gravity term on a
single braneworld of negative tension and vanishing effective cosmological
constant is studied. It is shown that for the physically interesting cases of
dust and radiation a unique global attractor which can realize our present
universe (accelerating and $0<\Omega_{m0}<1$) exists for a wide range of the
parameters of the model. For $\Omega_{m0}=0.3$, independently of the other
parameters, the model predicts that the equation of state for the dark energy
today is $w_{DE,0}=-1.4$, while $\Omega_{m0}=0.03$ leads to $w_{DE,0}=-1.03$.
In addition, during its evolution, $w_{DE}$ crosses the $w_{DE}=-1$ line to
smaller values.


title: Single B Production through R-Parity Violation

abstract:
  Supersymmetry without R-parity predicts tree level quark flavor violation. We
present a potential signal of single bottom production at electron-positron
colliders with energies in the range 6 to 20 GeV. Taking into account rare
decay limits it should be detectable with the current BaBar and Belle data
samples.


title: Dark Matter in SUGRA, Strings and Branes

abstract:
  A brief review is given of dark matter in SUGRA, strings and branes. For
SUGRA models the implications of Yukawa coupling unification on dark matter are
discussed in the light of $g-2$ and $b\to s\gamma$ constraints. A brief
discussion is given of the dark matter in orbifold string compactifications
under constraints of modular invariance and radiative breaking of the
electroweak symmetry. Finally a new candidate for dark matter - an extra-weakly
interacting massive particle or an XWIMP- is discussed. Such dark matter can
arise in a wide class of models, including the Stueckelberg extensions of MSSM,
in U(1) extensions of MSSM with off diagonal kinetic energy, and possibly in a
wider class of models which may have a string/D-brane origin. Satisfaction of
the relic density of XWIMPs consistent with WMAP is also discussed.


title:
Large mass expansion in two-loop QCD corrections of para-charmonium
  decay

abstract:
  We calculate the two-loop QCD corrections to paracharmonium decays $eta_{c}
rightarrow gamma gamma$ and $eta_{c} rightarrow g g$ involving light-by-light
scattering diagrams with light quark loops. Artificial large mass expansion and
convergence improvement techniques are used to evaluate these corrections. The
obtained corrections to the decays $eta_{c} rightarrow gamma gamma$ and
$eta_{c} rightarrow g g$ account for $-1.25 %$ and $ -0.73 %$ of the leading
order contribution, respectively.


title: Initial Singularity of the Little Bang

abstract:
  The Color Glass Condensate (CGC) predicts the form of the nuclear
wavefunction in QCD at very small x. Using this, we compute the wavefunction
for the collision of two nuclei, infinitesimally in the forward light cone. We
show that the Wigner transformation of this wavefunction generates rapidity
dependent fluctuations around the boost invariant classical solution which
describe the Glasma in the forward light cone.


title: Event rates vs. cross sections at neutrino telescopes

abstract:
  One of the major goals of neutrino astronomy is to explore the otherwise
unknown fluxes and interactions of ultrahigh energy neutrinos. The existing
neutrino telescopes look at three types of events: particle showers, muons, and
taus. In this paper we discuss the dependence of the event rates on the
neutrino nucleon cross-sections as we scale the cross sections, with energy, in
different scenarios beyond the standard model. Our focus will be on the IceCube
detector.


title: Bs ->mu+ mu- versus Direct Higgs Searches

abstract:
  We investigate the prospects for the discovery of neutral Higgs bosons with
muons by direct searches at the CERN Large Hadron Collider (LHC) as well as by
indirect searches in the rare decay Bs -> mu+ mu- at the Fermilab Tevatron and
the LHC. Promising results have been found for the minimal supersymmetric
standard model, the minimal supergravity (mSUGRA) model, and supergravity
models with non-universal Higgs masses (NUHM SUGRA). For tanb \simeq 50, we
find that (i) the contours for a branching fraction of B(Bs -> mu+ mu-) =
1x10^{-8} in the parameter space are very close to the 5\sigma contours for pp
-> b \phi^0 -> b mu+ mu- + X, \phi^0 = h^0, H^0, A^0 at the LHC with an
integrated luminosity (L) of 30 fb^{-1},(ii) the regions covered by B(Bs -> mu+
mu-) \ge 5x10^{-9} and the discovery region for b\phi^0 -> b mu+ mu- with 300
fb^{-1} are complementary in the mSUGRA parameter space,(iii) in NUHM SUGRA
models, a discovery of B(Bs -> mu+ mu-) \simeq 5x10^{-9} at the LHC will cover
regions of the parameter space beyond the direct search for pp -> b\phi^0 -> b
mu+ mu- with L = 300 fb^{-1}.


title:
On the new COMPASS measurement of the deuteron spin-dependent structure
  function $g_1^d$

abstract:
  Very recently, a new measurement of the deuteron spin-dependent structure
function $g_1^d (x)$ was reported by the COMPASS group. A main change from the
old SMC measurement is a considerable improvement of the statistical accuracy
in the low $x$ region $0.004 < x < 0.03$. We point out that the new COMPASS
data for $g_1^d (x)$ as well as their QCD fits for $\Delta \Sigma$ and $\Delta
s + \Delta \bar{s}$ are all remarkably close to our theoretical predictions
given several years ago based on the chiral quark soliton model.


title: Electromagetic proton form factors

abstract:
  The electromagnetic form factors are crucial to our understanding of the
proton internal structure, and thus provide a strong constraint of the
distributions of the charge and magnetization current within the proton. We
adopted the quark-parton model for calculating and understanding the charge
structure of the proton interms of the electromagnetic form factors. A
remarkable agreement with the available experimental evidence is found.


title: Photon mass and electrogenesis

abstract:
  We show that if photon possesses a tiny but non-vanishing mass the universe
cannot be electrically neutral. Cosmological electric asymmetry could be
generated either at an early stage by different evaporation rates of primordial
black holes with respect to positively and negatively charged particles or by
predominant capture of protons in comparison to electrons by heavy galactic
black holes in contemporary universe. An impact of this phenomenon on the
generation of large scale magnetic fields and on the universe acceleration is
considered.


title: Charmonium and Bottomonium from Classical SU(3) Gauge Configurations

abstract:
  The charmonium and bottomonium spectra computed from a potential defined from
a single gauge configuration, obtained from solving the classical field
equations, is discussed. The theoretical spectra shows good agreement with the
measured states.
  A discussion of possible interpretations, within the same non-relativistic
potential model, for the new charmonia states X(3872), $\chi_{c1} (2P)$ and
Y(4260) is performed. In particular, we give predictions for electromagnetic E1
transitions for various scenarios.


title: On two string axions as inflaton

abstract:
  We study an inflationary model where two decoupled string axions drive
inflation. The number of e-folds is dependent on the energy scale and the decay
constant, but is almost independent of the angular component in spite of the
rich geometry of the moduli space. This suppresses the nearly scale-invariant
spectrum of the isocurvature perturbations, making the power spectrum of the
primordial density perturbations dominated by the adiabatic component. We also
briefly discuss some amendments to improve the situation.


title: Quantum corrections to Higher-Dimensional Theories

abstract:
  This is a non-technical summary of the subtleties of quantum corrections on
extra-dimensional theories: should one first renormalize and then mode expand,
or first expand in four-dimensional modes and then renormalize?


title: NLO Simulations of Chargino Production at the ILC

abstract:
  We present an extension of the Monte Carlo Event Generator Whizard which
includes chargino production at the ILC at NLO. We present two ways of adding
photonic contributions. We present results for cross sections and event
generation.


title:
Improved superposition schemes for approximate multi-caloron
  configurations

abstract:
  Two improved superposition schemes for the construction of approximate
multi-caloron-anticaloron configurations, using exact single (anti)caloron
gauge fields as underlying building blocks, are introduced in this paper. The
first improvement deals with possible monopole-Dirac string interactions
between different calorons with non-trivial holonomy. The second one, based on
the ADHM formalism, improves the (anti-)selfduality in the case of small
caloron separations. It conforms with Shuryak's well-known ratio-ansatz when
applied to instantons. Both superposition techniques provide a higher degree of
(anti-)selfduality than the widely used sum-ansatz, which simply adds the
(anti)caloron vector potentials in an appropriate gauge. Furthermore, the
improved configurations (when discretized onto a lattice) are characterized by
a higher stability when they are exposed to lattice cooling techniques.


title: Survival probability in diffractive Higgs production in high density QCD

abstract:
  In this paper, the contribution of hard processes described by the BFKL
pomeron exchange, is taken into account by calculating the first enhanced
diagram. The survival probability is estimated, using the ratio of the first
enhanced diagram and the single pomeron amplitude, taking into account all
essential pomeron loop diagrams in the toy model of Mueller. The triple pomeron
vertex is calculated explicitly in the momentum representation. This
calculation is used for estimating the survival probability, It turns out that
the survival probability is small, at $0.4%{}$. Hard pomeron re-scattering
processes contribute substantially to the survival probability.


title: Towards the robustness of Affleck-Dine mechanism

abstract:
  In this talk we considered the Affleck-Dine mechanism with various types of
the Kahler potential, and investigate whether or not the Affleck-Dine field
could acquire a large VEV as an initial condition for successful baryogenesis.
In addition to a negative Hubble-induced mass term, we found examples that
large enough Hubble-induced A-terms could also develop the minima at large
amplitude of the field. It is concluded, therefore, that the Affleck-Dine
mechanism works for broader classes of the theories. This talk is based on
Ref.[1]. Here I extend the discussion from more generic standpoint, and find
that essentially there are three cases that large enough A terms develop minima
at large field values.


title:
Testing axial and electromagnetic nucleon form factors in time-like
  regions in the processes $\bar p + n\to \pi^- +\ell^-+\ell^+$ and $\bar p+
  p\to \pi^0 +\ell^- + \ell^+$, $\ell=e$, $\mu$

abstract:
  In frame of a phenomenological approach based on Compton-like Feynman
amplitudes, we study the annihilation channel in antiproton nucleon collisions
with production of a single charged or neutral pion and a lepton-antilepton
pair. These reactions allow to access nucleon and axial electromagnetic form
factors in time-like region and offer a unique possibility to study the
kinematical region below two nucleon threshold. The differential cross section
in an experimental set-up where the pion is fully detected is given with
explicit dependence on the relevant nucleon form factors. The possibility to
measure heavy charged pion in the annihilation channel is also discussed.


title: Microscopic derivation of the pion coupling to heavy-light mesons

abstract:
  The Goldberger--Treiman relation for heavy--light systems is derived in the
context of a quark model. As a paradigmatic example, the case of ${\bar D}\to
{\bar D}' \pi $ is studied in detail. The fundamental role played by the pion
two-component wave function, in the context of the Salpeter equation, is
emphasized.


title:
Selectron production at an e-e- linear collider with transversely
  polarized beams

abstract:
  We study selectron production at an e-e- linear collider. With the help of
transverse beam polarizations, we define CP sensitive observables in the
production process e- e- --> selectron_L selectron_R. This process proceeds via
t-channel and u-channel exchange of neutralinos, and is sensitive to CP
violation in the neutralino sector. We present numerical results and estimate
the significances to which the CP sensitive observables can be measured.


title: The $[{\bf 70},1^-]$ baryon multiplet in the $1/N_c$ expansion revisited

abstract:
  The mass splittings of the baryons belonging to the $[{\bf 70},1^-]$-plet are
derived by using a simple group theoretical approach to the matrix elements of
the mass formula. The basic conclusion is that the first order correction to
the baryon masses is of order $1/N_c$ instead of order $N^0_c$, as previously
found. The conceptual difference between the ground state and the excited
states is therefore removed.


title: CDM Abundance in non-Standard Cosmologies

abstract:
  The relic density of a cold dark matter (CDM) candidate is calculated in the
context of three non-standard cosmological scenaria and its value is compared
with the one obtained in the standard regime. In particular, we consider the
decoupling of the CDM particle during: (i) A decaying-particle dominated phase
or (ii) a kinetic-energy dominated phase or (iii) the decay of a massive
particle under the complete or partial domination of kination. We use plausible
values (from the viewpoint of supersymmetric models) for the mass and the
thermal averaged cross section times the velocity of the cold relic and we
investigate scenaria of equilibrium and non-equilibrium production. In the case
(i) a low reheat temperature, in the range (1-20) GeV, significantly
facilitates the achievement of an acceptable CDM abundance. On the other hand,
the presence of kination in the case (ii) can lead to an enhancement of the CDM
abundance up to three orders of magnitude. The latter enhancement can be
avoided, in the case (iii). In a such situation, the temperature turns out to
be frozen to a plateau value which is, mostly, lower than about 40 GeV.


title:
Is the $f_0(600)$ meson a dynamically generated resonance? -- a lesson
  learned from the O(N) model and beyond

abstract:
  O(N) linear $\sigma$ model is solvable in the large $N$ limit and hence
provides a useful theoretical laboratory to test various unitarization
approximations. We find that the large $N_c$ limit and the $m_\sigma\to \infty$
limit do not commute. In order to get the correct large $N_c$ spectrum one has
to firstly take the large $N_c$ limit. We argue that the $f_0(600)$ meson may
not be described as generated dynamically. On the contrary, it is most
appropriately described at the same level as the pions, i.e, both appear
explicitly in the effective lagrangian. Actually it is very likely the $\sigma$
meson responsible for the spontaneous chiral symmetry breaking in a lagrangian
with linearly realized chiral symmetry.


title: Systematics of geometric scaling

abstract:
  Using all available data on the deep-inelastic cross-sections at HERA at
x<0.01, we look for geometric scaling of the form \sigma^{\gamma^*p}(\tau)
where the scaling variable \tau behaves alternatively like \log(Q^2)-\lambda Y,
as in the original definition, or \log(Q^2)-\lambda \sqrt{Y}, which is
suggested by the asymptotic properties of the Balitsky-Kovchegov (BK) equation
with running QCD coupling constant. A ``Quality Factor'' (QF) is defined,
quantifying the phenomenological validity of the scaling and the uncertainty on
the intercept \lambda. Both choices have a good QF, showing that the second
choice is as valid as the first one, predicted for fixed coupling constant. A
comparison between the QCD asymptotic predictions and data is made and the QF
analysis shows that the agreement can be reached, provided going beyond leading
logarithmic accuracy for the BK equation.


title: QCD at high energy: saturation and fluctuation effects

abstract:
  In these proceedings, I shall review the basic concepts of perturbative QCD
in its high-energy limit. I shall concentrate on the approach to the unitarity
limit, usually referred to as saturation, as well as on the gluon-number
fluctuations the importance of which has recently been discovered. I shall
explain the basic framework showing the need for those phenomena, first, from a
simple picture of the high-energy behaviour, then, giving a short derivation of
the equation driving this evolution. In the second part, I shall exhibit an
analogy with statistical physics and show how this allows to derive geometric
scaling in QCD with saturation. I shall finally consider the effects of
gluon-number fluctuations on this picture and draw the physical consequences,
i.e. a new scaling law, arising from those results.


title: QCD Factorization for heavy quarkonium production at collider energies

abstract:
  In this talk, I briefly review several models of the heavy quarkonium
production at collider energies, and discuss the status of QCD factorization
for these production models.


title: On the Thermodynamics of a Heavy Quark-Antiquark Pair

abstract:
  Thermodynamics of a heavy quark-antiquark pair in SU(3)-QCD is studied below
the deconfinement critical temperature, $T_c$. In the quenched case, a model of
the string passing through heavy valence gluons yields a correct estimate of
$T_c$ and a behavior of the string tension near $T_c$. For two light flavors,
entropy and internal energy can be obtained from the partition function of
heavy-light mesons and baryons. They are in a good qualitative agreement with
the lattice results.


title: LFV in tau and muon decays within SUSY seesaw

abstract:
  In these proceedings we present the results for lepton flavour violating tau
and muon decays within the SUSY seesaw scenario. Specifically, we consider the
Constrained Minimal Supersymmetric Standard Model extended by three right
handed neutrinos, $\nu_{R_i}$ and their corresponding SUSY partners, ${\tilde
\nu}_{R_i}$, ($i=1,2,3$), and use the seesaw mechanism for neutrino mass
generation. We include the predictions for the branching ratios of two types of
lepton flavour violating channels, $l_j \to \l_i \gamma$ and $l_j \to 3 l_i$,
and compare them with the present bounds and future experimental sensitivities.
We first analyse the dependence of the branching ratios with the most relevant
SUSY seesaw parameters, and we then focus on the particular sensitivity to
$\theta_{13}$, which we find specially interesting on the light of its
potential future measurement. We further study the constraints from the
requirement of successfully producing the baryon asymmetry of the Universe via
thermal leptogenesis, which is another appealing feature of the SUSY seesaw
scenario. We conclude with the impact that a potential measurement of
$\theta_{13}$ can have on lepton flavour violating physics. This is a very
short summary of the works in Refs. \cite{Arganda:2005ji} and
\cite{Antusch:2006vw} to which we refer the reader for more details.


title: Potential Models and Lattice Gauge Current-Current Correlators

abstract:
  We compare current-current correlators in lattice gauge calculations with
correlators in different potential models, for a pseudoscalar charmonium in the
quark-gluon plasma. An important ingredient in the evaluation of the
current-current correlator in the potential model is the basic principle that
out of the set of continuum states, only resonance states and Gamow states with
lifetimes of sufficient magnitudes can propagate as composite objects and can
contribute to the current-current correlator. When the contributions from the
bound states and continuum states are properly treated, the potential model
current-current correlators obtained with the potential proposed in Ref. [11]
are consistent with the lattice gauge correlators. The proposed potential model
thus gains support to be a useful tool to complement lattice gauge calculations
for the study of $Q\bar Q$ states at high temperatures.


title: Colour dipoles and the HERA data

abstract:
  A very wide body of HERA diffractive electroproduction data is confronted
with the predictions of the colour dipole model. In doing so we focus upon
three different parameterisations of the dipole scattering cross-section, whose
parameters are fixed by analysis of DIS structure function data. This analysis
strongly suggests the presence of saturation effects, but is not definitive
because the conclusion requires the inclusion of data at low-$Q^2$ values.
Having fixed the parameters of the models from the DIS structure function data,
the resulting dipole cross sections can be used to make genuine predictions for
other reactions. Good agreement is obtained for all observables, as is
illustrated here for deeply virtual Compton scattering(DVCS) and diffractive
deep inelastic scattering(DDIS). There can be no doubting the success of the
dipole scattering approach and more precise observations are needed in order to
expose its limitations


title: A Peculiar Dynamically Warped Theory Space

abstract:
  We study a supersymmetric deconstructed gauge theory in which a warp factor
emerges dynamically, driven by Fayet-Iliopoulos terms. The model is peculiar in
that it possesses a global supersymmetry that remains unbroken despite
nonvanishing D-term vacuum expectation values. Inclusion of gravity and/or
additional messenger fields leads to the collective breaking of supersymmetry
and to an unusual phenomenology.


title: $E_6$ unification in a model of dark energy and dark matter

abstract:
  A model of dark energy and dark matter was proposed earlier by one of us
(PQH) which involved an unbroken gauge group $SU(2)_Z$ whose coupling $\alpha_Z
\equiv g_Z^2/4 \pi\sim O(1)$ at a scale $\Lambda_Z \sim 3 \times 10^{-3} eV$
starting from a value within the range of the Standard Model (SM) couplings at
a high energy scale $\sim 10^{16} GeV$. In that model, the universe is assumed
to be presently trapped in a false vacuum with an energy density $\sim
\Lambda_Z^4$. In this paper, we present a scenario in which $SU(2)_Z$ is
unified with the SM through several steps: $E_6 \to SU(2)_Z \otimes SU(6) \to
SU(2)_Z \otimes SU(3)_c \otimes SU(3)_L \otimes U(1) \to SU(2)_Z \otimes
SU(3)_c \otimes SU(2)_L \otimes U(1)_Y$. This unification provides a rationale
for why the value of the $SU(2)_Z$ coupling is within the range of the SM
couplings at high energies. The particle content and the route of symmetry
breaking in this model is very different from the usual $E_6$ unification
encountered in the literature. Several implications, in addition to the dark
energy, include the existence of heavy mirror particles which could be searched
for at future colliders such as the LHC.


title:
Relativistic Corrections to $e^+e^- \to J/\psi + \eta_c$ in a Potential
  Model

abstract:
  We compute relativistic corrections to the process $e^+e^- \to J/\psi +
\eta_c$ and find that they resolve the discrepancy between theory and
experiment.


abstract:
  We report on two recent calculations of QCD corrections to neutralino
annihilation cross sections: (1) the next-to-leading order corrections to chi
chi -> g g, and (2) the contribution to the cross section for chi chi -> q qbar
g arising from interference between the tree-level and loop-induced processes.


title:
Study of exotic hadrons in S-wave scatterings induced by chiral
  interaction in the flavor symmetric limit

abstract:
  We study s-wave bound states of a hadron and a light pseudoscalar meson
induced by the Weinberg-Tomozawa (WT) interaction in the flavor SU(3) symmetric
limit. The WT interaction is a driving force to generate quasibound states
dynamically in the chiral unitary approaches. The strength and sign of the WT
interaction are determined only by the group theoretical structure of the
target hadrons, and we present a general expression of the strengths for the
flavor SU(3) case. We show that, for the channels which are more exotic than
the target, the interaction is repulsive in most cases, and the strength of the
attractive interaction is universal for any possible target states. We
demonstrate that the attractive coupling is not strong enough to generate an
exotic state from the physically known masses of target hadrons. In addition,
we also find a nontrivial Nc dependence of the coupling strengths. We show that
the channels which are attractive at Nc=3 changes into repulsive ones for large
Nc, and, therefore, no attractive interaction exists in exotic channels in the
large-Nc limit.


title: QCD, New Physics and Experiment

abstract:
  I give a summary of Section E of the seventh edition of the Conference
''Quark confinement and the hadron spectrum". Papers were presented on
different subjects, from spectroscopy, including pentaquarks and hadron
structure, to the quest for physics beyond the standard model.


title: Self Interacting Dark Matter in the Solar System

abstract:
  Weakly coupled, almost massless, spin 0 particles have been predicted by many
extensions of the standard model of particle physics. Recently, the PVLAS group
observed a rotation of polarization of electromagnetic waves in vacuum in the
presence of transverse magnetic field. This phenomenon is best explained by the
existence of a weakly coupled light pseudoscalar particle. However, the
coupling required by this experiment is much larger than the conventional
astrophysical limits. Here we consider a hypothetical self-interacting
pseudoscalar particle which couples weakly with visible matter.
  Assuming that these pseudoscalars pervade the galaxy, we show that the solar
limits on the pseudoscalar-photon coupling can be evaded.


title: Is the $\sigma$ meson dynamically generated?

abstract:
  We study the problem whether the $\sigma$ meson is generated `dynamically'. A
pedagogical analysis on the toy O(N) linear sigma model is performed and we
find that the large $N_c$ limit and the $m_\sigma\to \infty$ limit does not
commute. The sigma meson may not necessarily be described as a dynamically
generated resonance. On the contrary, the sigma meson may be more appropriately
described by considering it as an explicit degree of freedom in the effective
lagrangian.


title: New results on muon inelastic cross section and energy loss in rock

abstract:
  Various uncertainties in calculations of inelastic cross section and energy
loss are considered. It is shown that widely used kinematic neglects and
approximations result in deviations in calculations of these values. The
obtained corrections increase with lepton mass, therefore possible consequences
for tau-lepton are discussed, too.


title: Quantum Gravity Effects in Black Holes at the LHC

abstract:
  We study possible back-reaction and quantum gravity effects in the
evaporation of black holes which could be produced at the LHC through a
modification of the Hawking emission. The corrections are phenomenologically
taken into account by employing a modified relation between the black hole mass
and temperature. The usual assumption that black holes explode around $1 $TeV
is also released, and the evaporation process is extended to (possibly much)
smaller final masses. We show that these effects could be observable for black
holes produced with a relatively large mass and should therefore be taken into
account when simulating micro-black hole events for the experiments planned at
the LHC.


title: Spins in Gluino Decays

abstract:
  To unambiguously claim that we see a gluino at the LHC we need to prove its
fermionic nature. Looking only at angular correlations we can distinguish a
universal extra dimensional interpretation of a gluino cascade decay (assuming
a bosonic heavy gluon) from supersymmetry. In addition to the known
lepton--hadron asymmetries we also use of purely hadronic correlations in the
gluino--sbottom decay chain.


title:
The Quark-Antiquark Contribution to the Fully Exclusive BFKL Evolution
  at NLL Accuracy

abstract:
  We calculate the quark-anti-quark contribution to the next-to-leading
logarithmic corrections to the BFKL kernel, retaining the dependence on the
momenta of the produced particles. This allows us to study the details of the
NLL corrections. We demonstrate that the standard calculation of the NLL
corrections to the scattering of two off-shell gluons includes contributions
from energies far above that which is probed at LL. This explicitly violates
energy and momentum conservation in the evolution and could be a source of the
reported large NLL corrections. The presented calculation is a step towards
combining energy and momentum conservation with full NLL accuracy in the
evolution.