title:
The NA49 Experiment at CERN: Spectral Analysis in the Unified Picture
  for Hadron Spectra

abstract:
  In this note we show how the experimental material given by NA49
Collaboration at CERN looks in the developed recently unified picture for
hadron spectra. It is found that the results of the experimental studies by the
NA49 Collaboration are excellently incorporated in the unified picture for
hadron spectra. Our analysis shows that $\Xi$-like baryon states observed by
the NA49 Collaboration are the states living in the corresponding KK tower
built in according to the earlier established general, physical law.


title: Photon-Neutrino Interactions

abstract:
  We discuss the interaction of photons with neutrinos including two lepton
loops. The parity violation in the gamma-nu to gamma-nu channel due to two
lepton loops is substantially enhanced relative to the one lepton loop
contribution. However there is no corresponding enhancement in the parity
conserving amplitude in either the direct or the cross channel.


title: The Multiple Point Principle and Higgs Bosons

abstract:
  The multiple point principle (MPP), according to which several vacuum states
with the same energy density exist, is put forward as a fine-tuning mechanism
predicting the ratio between the fundamental and weak scales in the Standard
Model (SM) and in its two Higgs doublet extension (2HDM). Using renormalization
group equations for the SM, we obtain the effective potential in the 2-loop
approximation and investigate the existence of its postulated second minimum at
the fundamental scale. In the SM an exponentially huge ratio between the
fundamental (Planck) and electroweak scales results:
$\frac{\Lambda_{fund}}{\Lambda_{ew}} \sim e^{40}.$ But in the 2HDM the
fundamental scale $\Lambda$ can vary from 10 TeV up to the Planck scale. Using
the MPP, we predict the masses of the Higgs bosons.


title: Right-Handed New Physics Remains Strangely Beautiful

abstract:
  Current data on CP violation in B_d -> eta' K_S and B_d -> phi K_S, taken
literally, suggest new physics contributions in b -> s transitions. Despite a
claim to the contrary, we point out that right-handed operators with a single
weak phase can account for both deviations thanks to the two-fold ambiguity in
the extraction of the weak phase from the corresponding CP-asymmetry. This
observation is welcome since large mixing in the right-handed sector is favored
by many GUT models and frameworks which address the flavor puzzle. There are
also interesting correlations with the B_s system which provide a way to test
this scenario in the near future.


title: Precision Electroweak Measurements and the Higgs Mass

abstract:
  The utility of precision electroweak measurements for predicting the Standard
Model Higgs mass via quantum loop effects is discussed. Current constraints
from $m_W$ and $\sinsthw\mzms$ imply a relatively light Higgs $\lsim 154$ GeV
which is consistent with Supersymmetry expectations. The existence of
Supersymmetry is further suggested by a discrepancy between experiment and
theory for the muon anomalous magnetic moment. Constraints from precision
studies on other types of ``New Physics'' are also briefly described.


title: Exclusive Radiative Decays of Upsilon in SCET

abstract:
  We study exclusive radiative decays of the $\Upsilon$ using soft-collinear
effective theory and non-relativistic QCD. In contrast to inclusive radiative
decays at the endpoint we find that color-octet contributions are power
suppressed in exclusive decays, and can safely be neglected, greatly
simplifying the analysis. We determine the complete set of Lorentz structures
that can appear in the SCET Wilson coefficients and match onto them using
results from a previous calculation. We run these coefficients from the scale
$\mups$ to the scale $\Lambda \sim 1 \textrm{GeV}$, thereby summing large
logarithms. Finally we use our results to predict the ratio of branching
fractions $B(\Upsilon \to \gamma f_2)/B(J/\psi \to \gamma f_2)$, $B(J/\psi \to
\gamma f_2)/B(\psi' \to \gamma f_2)$, and the partial rate for $\Upsilon \to
\gamma \pi \pi$.


title: Magnetic susceptibility of the QCD vacuum

abstract:
  We investigate the magnetic susceptibility of the QCD vacuum, based on the
instanton vacuum. Starting from the instanton liquid model for the instanton
vacuum, we derive the light-quark partition function $Z[V,T,\hat{m}]$ in the
presence of the current quark mass $\hat{m}$ as well as the external Abelian
vector and tensor fields. We calculate a two-point correlation function
relevant for the magnetic susceptibility and derive it beyond the chiral limit.
We obtain for the different flavors the following magnetic susceptibility:
$\chi_{u,d}< i\psi_{u,d}^\dagger \psi_{u,d}>_0 \sim 40\sim45 {\rm MeV}$, while
$\chi_{s}< i\psi_s^\dagger \psi_s >_0 \simeq 6\sim 10 {\rm MeV}$ with the quark
condensate $<i\psi^\dagger \psi>_0$.


title: Dynamical Model of Electroweak Pion Production Reaction

abstract:
  The dynamical model of pion electroproduction developed by the authors has
been extended to study the pion weak production reaction. The axial vector
N-Delta transition form factor G_A^{N\Delta} obtained from the analysis of
existing neutrino reaction data and the role of dynamical pion cloud on
G_A^{N\Delta} are discussed.


title: Leptonic Unitarity Triangles in Matter

abstract:
  We present a geometric description of lepton flavor mixing and CP violation
in matter by using the language of leptonic unitarity triangles. The exact
analytical relations for both sides and inner angles are established between
every unitarity triangle in vacuum and its effective counterpart in matter. The
typical shape evolution of six triangles with the terrestrial matter density is
illustrated for a realistic long-baseline neutrino oscillation experiment.


title: SU(4) string tensions from the fat-center-vortices model

abstract:
  The thick- or fat-center-vortices model has been applied to a calculation of
the potentials between static sources of various SU(4) representations. For
intermediate distances, a linear potential is obtained. For this region the
string tensions agree qualitatively with both flux tube counting and Casimir
scaling, even though for some representations it favors flux tube counting
more. In addition, our results confirm the existence of two different string
tensions for non-zero 4-ality representations at large distances. In this area,
zero 4-ality representations are screened. In our computations, we have used
only the first non-trivial vortex of SU(4).


title: Feynman rules for effective Regge action

abstract:
  Starting from the gauge invariant effective action in the quasi-multi-Regge
kinematics (QMRK), we obtain the effective reggeized gluon (R) -- particle (P)
vertices of the following types: $RPP$, $RRP$, $RRPP$, $RPPP$, $RRPPP$, and
$RPPPP$, where the on-mass-shell particles are gluons, or sets of gluons with
small invariant masses. The explicit expressions satisfying the Bose-symmetry
and gauge invariance conditions are obtained. As a comment to the Feynman rules
for derivation of the amplitudes in terms of effective vertices we present a
``vocabulary'' for practitioners.


title: SANCscope -- v.1.00

abstract:
  In this article we have summarized the status of the system SANC version
1.00. We have implemented theoretical predictions for many high energy
interactions of fundamental particles at the one-loop precision level for up to
4-particle processes. In the present part of our SANC description we place
emphasis on an extensive discussion of an important first step of calculations
of the one-loop amplitudes of 3- and 4-particle processes in QED, QCD and EW
theories. SANC version v1.00 is accessible from servers at Dubna
http://sanc.jinr.ru/ (159.93.74.10) and CERN http://pcphsanc.cern.ch/
(137.138.180.42)


title: Transition from Baryonic to Mesonic Freeze-Out

abstract:
  The recently discovered sharp peak in the K+/pi+ ratio is discussed in the
framework of the statistical model. In this model a rapid change is expected as
the hadronic gas undergoes a transition from a baryon-dominated to a
meson-dominated gas. The transition happens at sqrt{s_{NN}} = 8.16 GeV,
temperature T = 140 MeV and baryon chemical potential mu_B = 410 MeV. The
maximum in the Lambda/pi ratio is well reproduced by the statistical model, but
the change in the K+/pi+ ratio is much less pronounced than the one observed by
the NA49 collaboration. Further experimental tests are proposed to clarify the
nature of the transition. In particular, the maxima expected in the statistical
model for the Xi/pi and Omega/pi ratios occur at slightly higher beam energies
than the maxima for the Lambda/pi and K+/pi+ ratios.


title: Rare top quark decay t --> u_1 \bar{u}_2 u_2 in the standard model

abstract:
  The one-loop induced top quark decay $t\to u_1\bar{u}_2u_2$ ($u_i=u,c$) is
calculated in the context of the standard model. The dominant contribution to
this top quark decay arises from the Feynman diagrams induced by the off-shell
$tu_1g^*$ vertex, whereas the box diagrams are negligibly small. In contrast
with the on-shell $tu_1g$ vertex, which only gives rise to a pure dipolar
effect, the off-shell $tu_1g^*$ coupling also involves a monopolar term, which
gives a larger contribution than the dipolar one. It is found that the
branching ratio for the three-body decay $t\to u_1\bar{u}_2u_2$ is about of the
same order of magnitude of the two-body decay $t\to u_1 g$, the latter being
slightly larger, which stems from the fact that the three-body decay is
dominated by a monopolar term.


title: Prospects for Scalar Leptoquark Discovery at the LHC

abstract:
  The discovery potential of the ATLAS detector for scalar leptoquark pair
production at the LHC is discussed in this paper. The study is performed using
a parameterized yet realistic simulation of the ATLAS detector response for the
signal and the background. The channel LQLQ->(lq)(lq),where l=e,mu, is
investigated for the first two generations and the decay mode LQLQ->(nu_tau
b)(nu_tau b) for the third one. In both cases, a preliminary mass reach is
found to be ~1.3 TeV for three years of LHC running at low luminosity.


title: A Flavor Symmetry for quasi-degenerate Neutrinos: L_mu-L_tau

abstract:
  We consider the flavor symmetry L_mu - L_tau for the neutrino mass matrix.
The most general neutrino mass matrix conserving L_mu - L_tau predicts
quasi-degenerate neutrino masses with one maximal and two zero mixing angles.
The presence of L_mu - L_tau can also be motivated by the near-bimaximal form
of the neutrino mixing matrix. Furthermore, it is a special case of mu-tau
symmetric mass matrices. Breaking the flavor symmetry by adding a small
flavor-blind term to the neutrino mass matrix and/or by applying radiative
corrections is shown to reproduce the observed neutrino oscillation
phenomenology. Both the normal and inverted mass ordering can be accommodated
within this scheme. Moderate cancellation for neutrinoless double beta decay is
expected. The observables U_{e3}^2 and |1/2 - \sin^2\theta_{23}| are
proportional to the inverse of the fourth power of the common neutrino mass
scale. We comment on whether the atmospheric neutrino mixing is expected to lie
above or below pi/4. We finally present a model based on the see-saw mechanism
which generates a light neutrino mass matrix with an (approximate) L_mu - L_tau
flavor symmetry. This is a minimal model with just one standard Higgs doublet
and three heavy right-handed neutrinos. It needs only small values for the soft
L_mu - L_tau breaking terms to reproduce the phenomenological viable mass
textures analyzed.


title: Polarized Structure Functions and the GDH Integral from Lattice QCD

abstract:
  The Gerasimov-Drell-Hearn integral $I_{GDH}(Q^2)$, and its relation to
polarized nucleon structure functions, is discussed from the lattice
perspective. Of particular interest is the variation of $I_{GDH}(Q^2)$ with
$Q^2$, and what it may teach us about the origin and magnitude of higher-twist
contributions.


title: Saturation momentum at fixed and running QCD coupling

abstract:
  A relationship, linking the saturation momentum in the case of fixed and
running QCD coupling, respectively, is derived from the Balitsky-Kovchegov
equation. It relies on the linear instability of the evolution equation in the
dilute regime. The leading orders of the saturation momenta are mapped onto
each other exactly. For subleading terms a qualitative correspondence is
achieved with a relative error going to zero for large rapidities. The
relationship can also be derived for the Balitsky-Kovchegov equation with a
cutoff accounting for low-density effects and is satisfied by the corresponding
isoline functions. Further implications arise for the existence of
travelling-wave solutions in the two situations.


title: Radiative seesaw: a case for split supersymmetry

abstract:
  We revive Witten's mechanism for the radiative seesaw induced neutrino masses
in SO(10) grand unified theory. We propose its extension to charged fermion
masses as a possible cure for wrong tree level mass relations. We offer two
simple realizations that can produce a realistic fermionic spectrum. The first
one requires two 10 dimensional Higgses in the Yukawa sector and utilizes
radiative effects for charged fermion masses. The second one trades one 10 for
a 120 dimensional Higgs and leads to the SO(10) theory with less parameters in
the Yukawa sector. The mechanism works only if supersymmetry is broken at the
GUT scale while gauginos and higgsinos remain at TeV. This provides a strong
rationale for the so called split supersymmetry.


title: Alternatives to the seesaw mechanism

abstract:
  The observed pattern of lepton mixing does not give an evidence of the
seesaw. It is easier to disprove seesaw showing that one of the alternatives
gives dominant contribution to the neutrino mass. We consider alternative
mechanisms based on (i) small (tree level) effective couplings, (ii) small VEV,
(iii) radiative generation of masses, (iv) protection by SUSY breaking scale or
by $\mu$-term, (v) small overlap of wave functions of the left and right handed
neutrino components in extra dimensions. Seesaw can be the mechanism of
suppression of the Dirac mass terms and not dominant mechanism of the neutrino
mass giving just a sub-leading contribution.


title:
Pentaquarks: Review on Models and Solitonic Calculations of Antidecuplet
  Magnetic Moments

abstract:
  After a quick look at the present status of experiments we shortly review in
a first step the ongoing discussions on some of the basic theoretical
approaches to pentaquarks: Chiral solitons, Large-$N_c$ considerations, quark
models, and lattice gauge approaches. In a second step we apply the chiral
quark-soliton approach including linear $m_s$-corrections to the calculation of
magnetic moments of the baryons of the anti-decuplet. In this approach the
parameters are fixed solely by experimental data for the magnetic moments of
the baryon octet and for the masses of the octet, decuplet and of $\Theta^{+}$.
The magnetic moment of $\Theta^{+}$ depends rather strongly on the pion-nucleon
sigma term and reads $-1.19 {\rm n.m.}$ to $-0.33 {\rm n.m.}$ for $\Sigma_{\pi
N} = 45$ and 75 MeV respectively. As a byproduct the strange magnetic moment of
the nucleon is obtained with a value of $\mu^{(s)}_N =+0.39$ n.m.


title: Leptonic CP Violation and Neutrino Mass Models

abstract:
  We discuss leptonic mixing and CP violation at low and high energies,
emphasizing possible connections between leptogenesis and CP violation at low
energies, in the context of lepton flavour models. Furthermore we analyse weak
basis invariants relevant for leptogenesis and for CP violation at low
energies. These invariants have the advantage of providing a simple test of the
CP properties of any lepton flavour model.


title:
On the Vacuum Cherenkov Radiation in Noncommutative Electrodynamics and
  the Elusive Effects of Lorentz Violation

abstract:
  We show that in the framework of noncommutative classical electrodynamics
Cherenkov radiation is permitted in vacuum and we explicitly compute its
spectrum at first order in the noncommutative parameter. We discuss the
phenomenological impact of the merge of this new analysis with the old results
of the substantial modification to the spectrum of the synchrotron radiation
obtained in P.Castorina, A.Iorio and D.Zappala, Phys. Rev. D 69 (2004)065008.
We propose to consider the pulsars' radiation spectrum - due to its very strong
magnetic field - to investigate these Lorentz violating effects in
astrophysical phenomena.


title: The Origin of Mass in QCD

abstract:
  In this talk I discuss the origin of mass in quantum chromodynamics in the
context of the classical and quantum symmetries of the theory.


title: First order phase transition in the quark matter

abstract:
  We investigate chiral phase transition of the first order in the quark
matter. Using the Nambu-Jona-Lasinio model, an equation of state of the quark
matter which is similar to the van der Waals' one is obtained. Moreover the
specific heat and the compressibility are calculated. It is shown that they are
enhanced in the symmetry broken phase, in particular diverge near the
tricritical point.


title: Tetraquark particle in the string model

abstract:
  We discuss possibility of the existence of tetraquark states made of four
quarks in the string (flux tube) model. The new particle is composed of a
diquark and an anti-diquark which are connected by a color flux. It is shown
that the vibrational and rotational excited states of the string explain some
non-$\bar{q}q$ mesons observed experimentally. Moreover we discuss the decay
widths of such tetraquarks with the use of the Schwinger mechanism.


title:
Charged Lepton Electric Dipole Moments from TeV Scale Right-handed
  Neutrinos

abstract:
  We study the connection between charged lepton electric dipole moments, $d_l$
$(l=e,\mu,\tau)$, and seesaw neutrino mass generation in a simple two Higgs
doublet extension of the Standard Model plus three right-handed neutrinos (RHN)
$N_a$, $a=1,2,3$. For RHN with hierarchical masses and at least one with mass
in the 10 TeV range we obtain the upper bounds of $|d_e|< 9\times 10^{-30}$
e-cm and $|d_{\mu}|<2 \times 10^{-26}$ e-cm. Our scenario favors the normal
mass hierarchy for the light neutrinos. We also calculated the cross section
for $e^-e^- \ra W^- W^-$ in a high luminosity collider with constraints from
neutrinoless double beta decay of nuclei included. Among the rare muon decay
experiments we find that $\mu\ra e\gamma$ is most sensitive and the upper limit
is $<8\times 10^{-13}$.


title:
Improved low Q2 model for neutrino and electron nucleon cross sections
  in few GeV region

abstract:
  We present an improved model on neutrino- and electron-nucleon scattering
cross sections using effective leading order PDFs with a new scaling variable
xi_w. Non-perturbative QCD effects at low Q^2 are separately treated for u and
d valence quarks, and sea quarks. The improved model uses all inelastic charged
lepton F_2 data (SLAC/BCDMS/NMC/HERA), and photoproduction data on proton and
deuterium. In this way, we obtain an improved model which describes all
inelastic scattering charged lepton data, JLAB resonance data, and neutrino
data. This improved model is expected to be better for neutrino oscillation
experiments at few GeV region.


title: On the NuTeV anomaly and the asymmetry of the strange sea in the nucleon

abstract:
  Our recent theoretical analysis based on the flavor SU(3) chiral quark
soliton model predicts fairly large particle-antiparticle asymmetry of the
strange sea in the nucleon. We point out that the predicted magnitude of
asymmetry is large enough to solely resolve the so-called NuTeV anomaly on the
fundamental parameter $\sin^2 \theta_W$ in the standard model.


title: Chiral-Odd Twist-3 Distribution Function $e(x)$

abstract:
  We clarify the nonperturbative origin of the $\delta$-function singularity at
$x = 0$ in the chiral-odd twist-3 distribution function $e(x)$ of the nucleon.
We also compare a theoretical prediction for $e(x)$ based on the chiral quark
soliton model with the empirical information extracted from the CLAS
semi-inclusive DIS measurement.


title: $g_{s}$-factor quenching with quantum statistics

abstract:
  We discuss the effect of quantum statistics on the $g_{s}$-factor quenching
in nuclear medium. We have found that the two nucleon correlation function can
be described by a Gaussian with correlation length $\sigma\sim1.2$ fm. An
estimate of the M1 quenching strength is given. The effect of quantum
statistics on the retardation of the paramagnetic susceptibility is also
discussed.


title: QCD Phenomenology of Static Sources

abstract:
  We discuss the spectrum of open string and point particle excitations in QCD
with various source representations. Some general relations are introduced and
lattice results presented. In particular we discuss the short-distance
behaviour, relate this to perturbation theory expectations and comment on the
matching between low energy matrix elements and high energy Wilson
coefficients, within the framework of effective field theories.


title:
Phenomenological approach to the critical dynamics of the QCD phase
  transition revisited

abstract:
  The phenomenological dynamics of the QCD critical phenomena is revisited.
Recently, Son and Stephanov claimed that the dynamical universality class of
the QCD phase transition belongs to model H. In their discussion, they employed
a time-dependent Ginzburg-Landau equation for the net baryon number density,
which is a conserved quantity. We derive the Langevin equation for the net
baryon number density, i.e., the Cahn-Hilliard equation. Furthermore, they
discussed the mode coupling induced through the {\it irreversible} current.
Here, we show the {\it reversible} coupling can play a dominant role for
describing the QCD critical dynamics and that the dynamical universality class
does not necessarily belong to model H.


title: Hydrogen Atom in Relativistic Motion

abstract:
  The Lorentz contraction of bound states in field theory is often appealed to
in qualitative descriptions of high energy particle collisions. Surprisingly,
the contraction has not been demonstrated explicitly even in simple cases such
as the hydrogen atom. It requires a calculation of wave functions evaluated at
equal (ordinary) time for bound states in motion. Such wave functions are not
obtained by kinematic boosts from the rest frame. Starting from the exact
Bethe-Salpeter equation we derive the equal-time wave function of a
fermion-antifermion bound state in QED, i.e., positronium or the hydrogen atom,
in any frame to leading order in alpha. We show explicitly that the bound state
energy transforms as the fourth component of a vector and that the wave
function of the fermion-antifermion Fock state contracts as expected.
Transverse photon exchange contributes at leading order to the binding energy
of the bound state in motion. We study the general features of the
corresponding fermion-antifermion-photon Fock states, and show that they do not
transform by simply contracting. We verify that the wave function reduces to
the light-front one in the infinite momentum frame.


title:
Exploring Leptonic CP Violation with Combined Analysis of Reactor and
  Neutrino Superbeam Experiments

abstract:
  We investigate the possibility to find the leptonic CP-violation by combining
the reactor experiment with the superbeam experiment without antineutrino
superbeam. We show also how much the sensitivity on CP-violating phase delta is
affected by the fact that we have not known the sign of Delta m^2_31.


title: On the rare $K \to \pi \bar l l$ decays

abstract:
  In this talk, we present our recent work on the $K\ra\pi \bar{l} l$ decays in
a combined framework of chiral perturbation theory and Large--$N_c$ QCD under
the dominance of a minimal narrow resonance structure. The proposed description
reproduces very well the experimental Br$(K^+\ra\pi^+ e^+ e^-)$ and
Br$(K_S\ra\pi^0 e^+ e^-)$. Predictions for the $K\ra\pi \mu^{+}\mu^{-}$ modes
are also obtained and we can conclude to the constructive type for the
interference between the {\it direct} and {\it indirect} CP--violation
amplitudes in $K_L\ra\pi^0 e^+ e^-$.


title:
Polarizations in decays B_{u,d}\to VV and possible implications for
  R-parity violating SUSY

abstract:
  Recently BABAR and Belle have measured anomalous large transverse
polarizations in some pure penguin $B \to VV$ decays, which might be
inconsistent with the Standard Model expectations. We try to explore its
implications for R-parity violating (RPV) supersymmetry. The QCD factorization
approach is employed for the hadronic dynamics of B decays. We find that it is
possible to have parameter spaces solving the anomaly. Furthermore, we have
derived stringent bounds on relevant RPV couplings from the experimental data,
which is useful for further studies of RPV phenomena.


title:
O(alpha_s^2) QCD corrections to the electroproduction of hadrons with
  high transverse momentum

abstract:
  We compute the order alpha_s^2 corrections to the one particle inclusive
electroproduction cross section of hadrons with non vanishing transverse
momentum. We perform the full calculation analytically, and obtain the
expression of the factorized (finite) cross section at this order. We compare
our results with H1 data on forward production of pi^0, and discuss the
phenomenological implications of the rather large higher order contributions
obtained in that case. Specifically, we analyze the cross section sensitivity
to the factorization and renormalization scales, and to the input fragmentation
functions, over the kinematical region covered by data. We conclude that the
data is well described by the O(alpha_s^2) predictions within the theoretical
uncertainties and without the inclusion of any physics content beyond the DGLAP
approach.


title: Pseudo-axions in Little Higgs models

abstract:
  Little Higgs models have an enlarged global symmetry which makes the Higgs
boson a pseudo-Goldstone boson. This symmetry typically contains spontaneously
broken U(1) subgroups which provide light electroweak-singlet pseudoscalars.
Unless such particles are absorbed as the longitudinal component of $Z'$
states, they appear as pseudoscalars in the physical spectrum at the
electroweak scale. We outline their significant impact on Little Higgs
phenomenology and analyze a few possible signatures at the LHC and other future
colliders in detail. In particular, their presence significantly affects the
physics of the new heavy quark states predicted in Little Higgs models, and
inclusive production at LHC may yield impressive diphoton resonances.


title:
The L-R Correlator and its Chiral Condensates in the MHA and MHA+V'
  Approximations to Large-Nc QCD

abstract:
  In this talk, we describe part of a recent work on the correlation function
of a V-A current with a V+A current in the framework of QCD in the limit of a
large number of colours Nc. The discussion takes place within two successive
approximations of this theory, called MHA and MHA+V'. Results concerning the
evaluation of chiral condensates of dimension six and eight, as well as matrix
elements of the Q7 and Q8 electroweak penguin operators, are given.


title:
QED corrections to isospin-related decay rates of charged and neutral B
  mesons

abstract:
  We estimate the isospin-violating QED radiative corrections to the
charged-to-neutral ratios of the decay rates for B^+ and B^0 in non-leptonic B
meson decays. In particular, these corrections are potentially important for
precision measurement of the charged-to-neutral production ratio of B meson in
e^+e^- annihilation. We calculate explicitly the QED corrections to the ratios
of two different types of decay rates \Gamma(B^+ \to J/\psi K^+)/\Gamma(B^0 \to
J/\psi K^0) and \Gamma(B^+ \to D^+_S \bar{D^0})/\Gamma(B^0 \to D^+_S D^-)
taking into account the form factors of the mesons based on the vector meson
dominance model, and compare them with the results obtained for the point-like
mesons.


title: Indirect Sensitivities to the Scale of Supersymmetry

abstract:
  Precision measurements, now and at a future linear electron-positron collider
(ILC), can provide indirect information about the possible scale of
supersymmetry. We illustrate the present-day and possible future ILC
sensitivities within the constrained minimal supersymmetric extension of the
Standard Model (CMSSM), in which there are three independent soft
supersymmetry-breaking parameters m_{1/2}, m_0 and A_0. We analyze the present
and future sensitivities separately for M_W, sin^2(theta_eff), (g-2)_mu, BR(b
-> s gamma), BR(B_s -> mu+ mu-), M_h and Higgs branching ratios. We display the
observables as functions of m_{1/2}, fixing m_0 so as to obtain the cold dark
matter density allowed by WMAP and other cosmological data for specific values
of A_0, tan beta and mu > 0. In a second step, we investigate the combined
sensitivity of the currently available precision observables, M_W,
sin^2(theta_eff), (g-2)_mu and BR(b -> s gamma), by performing a chi^2
analysis. The current data are in very good agreement with the CMSSM prediction
for tan beta = 10, with a clear preference for relatively small values of
m_{1/2} \sim 300 GeV. In this case, there would be good prospects for observing
supersymmetry directly at both the LHC and the ILC, and some chance already at
the Tevatron collider. For tan beta = 50, the quality of the fit is worse, and
somewhat larger m_{1/2} values are favoured. With the prospective ILC
accuracies the sensitivity to indirect effects of supersymmetry greatly
improves. This may provide indirect access to supersymmetry even at scales
beyond the direct reach of the LHC or the ILC.


title: A power-law description of heavy ion collision centrality

abstract:
  The minimum-bias distribution on heavy ion collision multiplicity $n_{ch}$ is
well approximated by power-law form $n_{ch}^{-3/4}$, suggesting that a change
of variable to $n_{ch}^{1/4}$ may provide more precise access to the structure
of the distribution and to A-A collision centrality. We present a detailed
centrality study of Hijing-1.37 Monte Carlo data at 200 GeV using the power-law
format. We find that the minimum-bias distribution on $n_{participant}^{1/4}$,
determined with a Glauber Monte Carlo simulation, is uniform except for a 5%
sinusoidal variation. The power-law format reveals precise linear relations
between Glauber parameters $n_{part}$ and $n_{bin}$ and the fractional cross
section. The power-law format applied to RHIC data facilitates incorporation of
extrapolation constraints on data and Glauber distributions to obtain a
ten-fold improvement in centrality accuracy for peripheral collisions.


title:
Antiproton-proton resonant like channels in J/Psi decays into photon,
  proton and antiproton

abstract:
  The BES collaboration has recently observed a strong enhancement close to the
proton-antiproton threshold in the J/Psi decays into photon, proton and
antiproton. Such a structure can be explained by a traditional
nucleon-antinucleon model. The near threshold 1S0 bound state and/or the
well-established 3P0 resonant state found in this nucleon-antinucleon
interaction can adequately describe the BES data.


title:
Hadronic current correlation functions at finite temperature in the NJL
  model

abstract:
  Recently there have been suggestions that for a proper description of
hadronic matter and hadronic correlation functions within the NJL model at
finite density/temperature the parameters of the model should be taken
density/temperature dependent. Here we show that qualitatively similar results
can be obtained using a cutoff-independent regularization of the NJL model. In
this regularization scheme one can express the divergent parts at finite
density/temperature of the amplitudes in terms of their counterparts in vacuum.


title:
Novel Azimuthal Asymmetries in Drell Yan and Semi-inclusive Deep
  Inelastic Scattering

abstract:
  We consider the leading and sub-leading twist $T$-odd and even contributions
to the $\cos 2\phi$ azimuthal asymmetry in unpolarized dilepton production in
Drell-Yan Scattering. We estimate the contributions' effects at $500 {\rm
GeV}$, $ 50 {\rm GeV}$, and $25 {\rm GeV}$ energies in the framework of the
parton model using a quark diquark-spectator model of the nucleon to
approximate the soft contributions.


title: Experimental Aspects of Higgs Physics at the ILC

abstract:
  Recent progress in Higgs boson studies for the International e+e- Linear
Collider (ILC) is reported. These studies include extended simulations of the
measurement of the Higgs mass, measurements of the Higgs boson branching ratios
at higher center-of-mass energies, and methods for extracting the Higgs boson
self-coupling. Also, the interplay between the LHC and the ILC in the
measurement of the top Yukawa coupling and in the extraction of the
supersymmetric Higgs sector parameters is discussed.


title: N K Pi molecular state with I=1 and J(Pi)=3/2-

abstract:
  The structure of the molecule-like state of $NK\pi$ with spin-parity
$J^{\pi}={3/2}^-$ and isospin I=1 is studied within the chiral SU(3) quark
model. First we calculate the $NK$, $N\pi$, and $K\pi$ phase shifts in the
framework of the resonating group method (RGM), and a qualitative agreement
with the experimental data is obtained. Then we perform a rough estimation for
the energy of $(NK\pi)_{J^{\pi}={3/2}^-,I=1}$, and the effect of the mixing to
the configuration $(\Delta K)_{J^{\pi}={3/2}^-,I=1}$ is also considered. The
calculated energy is very close to the threshold of the $NK\pi$ system. A
detailed investigation is worth doing in the further study.


title: Infrared regularization for spin-1 fields

abstract:
  We extend the method of infrared regularization to spin-1 fields. As
applications, we discuss the chiral extrapolation of the rho meson mass from
lattice QCD data and the pion-rho sigma term.


title: Spin-3/2 pentaquark in the QCD sum rule

abstract:
  We study $IJ^P=0{3/2}^\pm$ and $1{3/2}^\pm$ pentaquark states with $S=+1$ in
the QCD sum rule approach. The QCD sum rule for positive parity states and that
for negative parity are independently derived. The sum rule suggests that there
exist the $0{3/2}^-$ and the $1{3/2}^-$ states. These states may be observed as
extremely narrow peaks since they can be much below the $S$-wave threshold and
since the only allowed decay channels are $NK$ in $D$-wave, whose centrifugal
barriers are so large that the widths are strongly suppressed. The $0{3/2}^-$
state may be assigned to the observed $\Theta^+(1540)$ and the $1{3/2}^-$ state
can be a candidate for $\Theta^{++}$.


title: Spin Oscillations in Storage Rings

abstract:
  The dependence of the particle rotation frequency on the particle orbit
perturbations is found. The exact equation of spin motion in the cylindrical
coordinate system is derived. The calculated formula for the frequency of g-2
precession is in the best agreement with previous results. Nevertheless, this
formula contains the additional oscillatory term that can be used for fitting.
The influence of spin oscillations on the spin dynamics in the EDM experiment
is negligible.


title: Dihedral Families of Quarks, Leptons and Higgs Bosons

abstract:
  We consider finite groups of small order for family symmetry. It is found
that the binary dihedral group Q_6, along with the assumption that the Higgs
sector is of type II, predicts mass matrix of a nearest neighbor interaction
type for quarks and leptons. We present a supersymmetric model based on Q_6
with spontaneously induced CP phases. The quark sector contains 8 real
parameters with one independent phase to describe the quark masses and their
mixing. Predictions in the |V_{ub}|-bar{eta}, |V_{ub}|-sin 2 beta(phi_1) and
|V_{ub}|-|V_{td}/V_{ts}| planes are given. The lepton sector contains also 9
parameters. A normal as well as an inverted spectrum of neutrino masses is
possible, and we compute V_{e3}. We find that |V_{e3}|^2 > 10^{-4} in the case
of a normal spectrum, and |V_{e3}|^2 >8 10^{-4} in the case of an inverted
spectrum. It is also found that Q_6 symmetry forbids all Baryon number
violating terms of d=4, and the contributions to EDMs from the A terms vanish
in this model.


title:
Historical and futuristic perturbative and non-perturbative aspects of
  QCD jet physics

abstract:
  A brief review of jet physics is presented with an emphasis upon open
theoretical problems (non-perturbative domain; hadronization and confinement)
and new phenomena (hadroproduction in heavy ion collisions).


title: Testing Mass Varying Neutrino With Short Gamma Ray Burst

abstract:
  In this paper we study the possibility of probing for the absolute neutrino
mass and its variation with short Gamma Ray Burst (GRB). We have calculated the
flight time difference between a massive neutrino and a photon in two different
approaches to mass varying neutrinos. Firstly we parametrize the neutrino mass
as a function of redshift in a model independent way, then we consider two
specific models where the neutrino mass varies during the evolution of the
Quintessence fields. Our calculations show in general the value of the time
delay is changed substantially relative to a constant neutrino mass.
Furthermore our numerical results show that the flight time delay in these
models is expected to be larger than the duration time of the short GRB, which
opens a possibility of testing the scenario of mass varying neutrino with the
short GRB.


title: Z-scaling at RHIC

abstract:
  The concept of z-scaling reflecting the general regularities of high-pT
particle production is reviewed. Properties of data z-presentation are
discussed. New data on high-pT particle spectra obtained at the RHIC are
analyzed in the framework of z-presentation. It was shown that these
experimental data confirm z-scaling. Predictions of strange particle spectra
are considered to be useful for understanding of strangeness origin in mesons
and baryons and search for new physics phenomena at the RHIC.


title:
A phenomenological determination of the pion-nucleon scattering lengths
  from pionic hydrogen

abstract:
  A model independent expression for the electromagnetic corrections to a
phenomenological hadronic pion-nucleon scattering length, extracted from pionic
hydrogen, is obtained. In a non-relativistic approach and using an extended
charge distribution, these corrections are derived up to terms of order
(alpha)**2 log(alpha) in the limit of a short-range hadronic interaction. We
infer a charged pion-proton scattering length of 0.0870(5) in units of inverse
pion mass, which gives for the charged pion-proton-neutron coupling, through
the GMO relation, a value of 14.04(17).


title: A Study of the Gluon Ladder in Diffractive Processes

abstract:
  The solution to the non-forward BFKL equation in the Leading Logarithmic
approximation is expressed in terms of a sum of iterations of its kernel
directly in transverse momentum and rapidity space. Several studies of the
non-forward solution are performed both at the level of the gluon Green's
function and for a toy cross-section, including an analysis of the diffusion
properties as found in this approach. The method developed in this paper allows
for a direct inspection of the momenta in the BFKL ladder, and can be applied
to solving the non-forward BFKL equation to next-to-leading logarithmic
accuracy, when the corresponding kernel is available.


title: Zeros of the inverted neutrino mass matrix

abstract:
  I investigate viable textures with two texture zeros for the inverted
neutrino mass matrix, and present the predictions of those textures for the
neutrino masses and for lepton mixing. By using an Abelian symmetry and one or
two heavy scalar singlets, I construct realizations of those textures in the
context of seesaw models.


title: QCD sum rule approach for the light scalar mesons as four-quark states

abstract:
  We study the two point-function for the scalar mesons $\sigma, \kappa,
f_0(980)$ and $a_0(980)$ as diquak-antidiquark states. We also study the decays
of these mesons into $\pi\pi$, $K\pi$ and $K\bar{K}$. We found that the
couplings are consistent with existing experimental data, pointing in favor of
the four-quark structure for the light scalar mesons.


title:
The Gluon Propagator in Minkowski and Euclidean Space: Role of an A^2
  Condensate

abstract:
  In a recent work we described the form taken by the Minkowski-space gluon
propagator in the presence of an A^2 condensate. This condensate has been seen
to play an important role in calculations which make use of the operator
product expansion. The latter work has led to the publication of a large number
of papers which discuss how the A^2 condensate could play a role in a
gauge-invariant formulation. In the present work we discuss the properties of
both the Euclidean-space and Minkowski-space gluon propagator. In the case of
the Euclidean-space propagator we can make contact with the results of QCD
lattice calculations of the propagator in the Landau gauge. With an appropriate
choice of normalization constants, we present a unified representation of the
gluon propagator that describes both the Minkowski-space and Euclidean-space
dynamics in which the A^2 condensate plays an important role.


title:
Search for Combinations of Thermal n-point Functions with Analytic
  Extensions

abstract:
  The 2^{n} different n-point functions that occur in real-time thermal field
theory are Fourier transformed to real energies. Because of branch cuts in
various energy variables, none of these functions can be extended analytically
to complex energies. The known linear combinations that form the fully retarded
and advanced functions can be extended analytically. It is proven that no other
linear combinations have an analytic extension to complex energies.


title: B Decays on the Lattice and Results for Phenomenology

abstract:
  Lattice Monte Carlo simulations now include the effects of 2 light sea quarks
and 1 strange sea quark through the use of an improved staggered fermion
action. Consequently, results important to phenomenology are free of the
approximate 10% errors inherent in the quenched approximation. This talk
reports on calculations of the B and Bs decay constants and B -> pi l nu form
factors. Accurate determinations of these quantities will lead to tighter
constraints on CKM matrix elements.


title:
Classical Solutions of SU(3) Yang-Mills Theory and Heavy Quark
  Phenomenology

abstract:
  It is showed that potentials derived from classical solutions of the SU(3)
Yang-Mills theory can provide confining potentials that reproduce the heavy
quarkonium spectrum within the same level of precision as the Cornell
potential.


title:
Photon number emission in synchrotron radiation: Systematics for
  high-energy particles

abstract:
  A recent derivation of an explicit elementary expression for the mean number
$<N>$ of photons emitted per revolution in synchrotron radiation allows a
systematic high-energy analysis leading to the result $<N>\simeq
5\pi\alpha/\sqrt{3(1-\beta^2)}+a_0\alpha+\pi\alpha\sqrt{1-\beta^2}/10\sqrt{3}$
where $a_0$ is a constant, with relative errors of 2.2%, 0.64%, 0.017%, in
comparison to the well-known formula tabulated in the literature of 160%, 82%,
17% for $\beta=0.8$, 0.9, 0.99, respectively.


title: Bi-maximal mixing at GUT, the low energy data and the leptogenesis

abstract:
  In the framework of the minimum supersymmetric model with right-handed
neutrinos, we consider the Bi-maximal mixing which is realized at the GUT scale
and discuss a question that this model can reproduce the low energy phenomena
and the leptogenesis.


title: Yukawa Matrix for the Neutrino and Lepton Flavour Violation

abstract:
  We estimate the magnitude of Lepton Flavour Violation (LFV) from the phase of
the neutrino Yukawa matrix. In the minimal supersymmetric standard model with
right-handed neutrinos, the LFV processes l_i \to l_j \gamma can appear through
the slepton mixing, which comes from the renormalization group effect on the
right-handed neutrino Yukawa interaction between the Grand Unified Theory scale
and the heavy right-handed neutrino mass scale. Two types of phases exist in
the neutrino Yukawa matrix. One is the Majorana phase, which can change the
magnitude of the LFV branching ratios by a few factor. The other phases relate
for the size of the Yukawa hierarchy and its phase effect can change the LFV
branching ratios by several orders of magnitude.


title: Joint resummation for heavy quark production

abstract:
  We present joint threshold and recoil resummed transverse momentum
distributions for heavy quark hadroproduction, at next-to-leading logarithmic
accuracy. We study the dependence of these distributions on the production
channel, the color configurations and the differences with the pure
threshold-resummed distribution.


title: A modified Balitsky-Kovchegov equation

abstract:
  We propose a modified version of the Balitsky-Kovchegov (B-K) evolution
equation, which includes the main NLO corrections. We use the result that the
main NLO corrections to the BFKL kernel are the LO DGLAP corrections.
  We present a numerical solution of the modified nonlinear equation, and
compare with the solution of the unmodified B-K equation. We show that the
saturation momentum has a sharp increase in the LHC energy range. Our numerical
solution indicates that the influence of the pre-asymptotic corrections,
related to the full anomolous dimensions of the DGLAP equation, are rather
large. These corrections moderate the energy behaviour of the amplitude, as
well as the value of the saturation scale. All our calculations are made with a
fixed value of $\alpha_{s}$.


title:
NLO QCD procedure of the semi-inclusive deep inelastic scattering data
  analysis with respect to the light quark polarized sea

abstract:
  The semi-inclusive deep inelastic scattering (SIDIS) process is considered. A
theoretical procedure is proposed allowing the direct extraction from the SIDIS
data of the first moments of the polarized valence distributions and of the
first moment difference of the light sea quark polarized distributions in the
next to leading QCD order. The validity of the procedure is confirmed by the
respective simulations.


title: A Selection Rule for Multiquark Decays

abstract:
  By assuming SU(6)_cs symmetry for pentaquark decays one finds a selection
rule, which strongly reduces the number of states able to decay into a baryon
and a meson final state and allows an intriguing identification for the Theta^+
particle recently discovered with the prediction of a narrow width.


title: Gluon propagation in space-time dependent fields

abstract:
  The propagator for gluons in a space-time dependent field is derived. This is
accomplished by solving the equation of motion for the gluonic Green's
functions. Subsequently a relationship between the quark and the gluon
propagator is presented. With its help characteristics of the bosonic
propagator can be obtained from those of the fermionic and vice versa. Finally,
this relation is discussed for the special case of ultrarelativistic collisions
in the semiclassical limit.


title:
Effective restoration of chiral and axial symmetries at finite
  temperature and density

abstract:
  The effective restoration of chiral and axial symmetries is investigated
within the framework of the SU(3) Nambu-Jona-Lasinio model. The topological
susceptibility, modeled from lattice data at finite temperature, is used to
extract the temperature dependence of the coupling strength of the anomaly. The
study of the scalar and pseudoscalar mixing angles is performed in order to
discuss the evolution of the flavor combinations of $q \bar q$ pairs and its
consequences for the degeneracy of chiral partners. A similar study at zero
temperature and finite density is also realized.


title: Constraints on widths of mixed pentaquark multiplets

abstract:
  We determine constraints on the partial widths of mixed pentaquark multiplets
in the framework of heavy baryon chiral perturbation theory (HB$\chi$PT). The
partial widths satisfy a GMO-type relation at leading order in HB$\chi$PT, for
arbitrary mixing. The widths of N(1440), N(1710), and $\Theta(1540)$ are not
consistent with ideal mixing, $\theta_{N} = 35.3^{\circ}$, but are consistent
with $\theta_{N} \lesssim 25^{\circ}$. Furthermore, there are parameter values
in HB$\chi$PT that produce such a mixing angle while allowing the
identification of the mass spectrum above. As an alternative to non-ideal
mixing, we also suggest reasons for giving up on N(1440) as a pure pentaquark
state.


title:
Resolution of Nearly Mass Degenerate Higgs Bosons and Production of
  Black Hole Systems of Known Mass at a Muon Collider

abstract:
  The direct s-channel coupling to Higgs bosons is 40000 times greater for
muons than electrons; the coupling goes as mass squared. High precision
scanning of the lighter $h^0$ and the higher mass $H^0$ and $A^0$ is thus
possible with a muon collider. The $H^0$ and $A^0$ are expected to be nearly
mass degenerate and to be CP even and odd, respectively. A muon collider could
resolve the mass degeneracy and make CP measurements. The origin of CP
violation in the $K^{0}$ and $B^{0}$ meson systems might lie in the the
$H^0/A^0$ Higgs bosons. If large extra dimensions exist, black holes with
lifetimes of $\sim 10^{-26}$ seconds could be created and observed via Hawking
radiation at the LHC. Unlike proton or electron colliders, muon colliders can
produce black hole systems of known mass. This opens the possibilities of
measuring quantum remnants, gravitons as missing energy, and scanning
production turn on. Proton colliders are hampered by parton distributions and
CLIC by beamstrahlung. The ILC lacks the energy reach.


title:
Mass and Cross-section Measurements of Chargino at Linear Colliders in
  Large tan(beta) Case

abstract:
  The lighter chargino pair production ($e^+e^- \to \tilde{\chi}^{+}_{1}
\tilde{\chi}^{-}_{1}$) is one of key processes for determination of
supersymmetric parameters at a linear collider. If $\tan\beta$ is a large
value, the lighter stau ($\tilde{\tau}^{\pm}_{1}$) might be lighter than the
$\tilde{\chi}^{\pm}_{1}$, while the other sleptons stay heavier. This case
leads a cascade decay, $\tilde{\chi}^{\pm}_{1} \to \tilde{\tau}^{\pm}_{1}
\nu_{\tau}$ followed by $\tilde{\tau}^{\pm}_{1} \to \tilde{\chi}^{0}_{1}
\tau^{\pm}$, where $\tilde{\chi}^{0}_{1}$ is the lightest supersymmetric
particle. This paper addresses to what extent this cascade decay may affect the
measurements of the chargino mass and its production cross section.


title: Higgs mass in the gauge-Higgs unification

abstract:
  The gauge-Higgs unification theory identifies the zero mode of the extra
dimensional component of the gauge field as the usual Higgs doublet. Since this
degree of freedom is the Wilson line phase, the Higgs does not have the mass
term nor quartic coupling at the tree level. Through quantum corrections, the
Higgs can take a vacuum expectation value, and its mass is induced. The
radiatively induced mass tends to be small, although it can be lifted to
${\mathcal O}(100)$ GeV by introducing the ${\mathcal O}(10)$ numbers of bulk
fields. Perturbation theory becomes unreliable when a large number of bulk
fields are introduced. We reanalyze the Higgs mass based on useful expansion
formulae for the effective potential and find that even a small number of bulk
field can have the suitable heavy Higgs mass. We show that a small (large)
number of bulk fields are enough (needed) when the SUSY breaking mass is large
(small). We also study the case of introducing the soft SUSY breaking scalar
masses in addition to the Scherk-Schwarz SUSY breaking and obtain the heavy
Higgs mass due to the effect of the scalar mass.


title: Spin density matrix elements in vector meson leptoproduction

abstract:
  It is reported on an analysis of vector meson leptoproduction at small
Bjorken-$x$ and large photon virtuality within an approach that bases on
generalized parton distributions (GPDs). This approach leads to results for
cross sections and spin density matrix elements for $\rho$ and $\phi$
leptoproduction in fair agreement with experiment.


title:
Earth Matter Effects at Very Long Baselines and the Neutrino Mass
  Hierarchy

abstract:
  We study matter effects which arise in the muon neutrino oscillation and
survival probabilities relevant to atmospheric neutrino and very long baseline
beam experiments. The inter-relations between the three probabilities P_{\mu
e}, P_{\mu \tau} and P_{\mu \mu} are examined. It is shown that large and
observable sensitivity to the neutrino mass hierarchy can be present in P_{\mu
\mu} and P_{\mu \tau}. We emphasize that at baselines of > 7000 Km, matter
effects in P_{\mu \tau} can be large under certain conditions. The muon
survival rates in experiments with very long baselines thus depend on matter
effects in both P_{\mu \tau} and P_{\mu e}. We indicate where these effects are
sensitive to \theta_{13}, and identify ranges of E and L where the event rates
increase with decreasing \theta_{13}, providing a handle to probe small
\theta_{13}. The effect of parameter degeneracies in the three probabilities at
these baselines and energies is studied in detail. Realistic event rate
calculations are performed for a charge discriminating 100 kT iron calorimeter
which demonstrate the possibility of realising the goal of determining the
neutrino mass hierarchy using atmospheric neutrinos. It is shown that a careful
selection of energy and baseline ranges is necessary in order to obtain a
statistically significant signal, and that the effects are largest in bins
where matter effects in both P_{\mu e} and P_{\mu \tau} combine constructively.
Under these conditions, upto a 4\sigma signal for matter effects is possible
(for \Delta_{31}>0) within a timescale appreciably shorter than the one
anticipated for neutrino factories.


title:
Leading Twist Amplitudes for Exclusive Neutrino Interactions in the
  Deeply Virtual Limit

abstract:
  Neutrino scattering on nucleons in the regime of deeply virtual kinematics is
studied both in the charged and the neutral electroweak sectors using a
formalism developed by Blumlein, Robaschik, Geyer and Collaborators for the
analysis of the Virtual Compton amplitude in the generalized Bjorken region. We
discuss the structure of the leading twist amplitudes of the process.


title:
Baryon Number in Warped GUTs : Model Building and (Dark Matter Related)
  Phenomenology

abstract:
  In the past year, a new non-supersymmetric framework for electroweak symmetry
breaking (with or without Higgs) involving SU(2)_L * SU(2)_R * U(1)_{B-L} in
higher dimensional warped geometry has been suggested. In this work, we embed
this gauge structure into a GUT such as SO(10) or Pati-Salam. We showed
recently (in hep-ph/0403143) that in a warped GUT, a stable Kaluza-Klein
fermion can arise as a consequence of imposing proton stability. Here, we
specify a complete realistic model where this particle is a weakly interacting
right-handed neutrino, and present a detailed study of this new dark matter
candidate, providing relic density and detection predictions. We discuss
phenomenological aspects associated with the existence of other light (<~ TeV)
KK fermions (related to the neutrino), whose lightness is a direct consequence
of the top quark's heaviness. The AdS/CFT interpretation of this construction
is also presented. Most of our qualitative results do not depend on the nature
of the breaking of the electroweak symmetry provided that it happens near the
TeV brane.


title: Renormalization and gauge symmetry for 2PI effective actions

abstract:
  We explore a method to recover symmetry identities in the 2PI formalism. It
is based on non-perturbative approximations to the 1PI effective action. We
discuss renormalization questions raised by this technique.


title: The properties of the D-meson in dense matter

abstract:
  We study the D-meson spectral density in dense matter within the framework of
a coupled-channel self-consistent calculation taking, as bare meson-baryon
interaction, a separable potential. Our coupled-channel model generates
dynamically the $\Lambda_c(2593)$ resonance. The medium modifications of the
D-meson properties due to Pauli blocking and the dressing of D-mesons, nucleons
and pions are also discussed. We found that the coupled-channel effects in the
self-consistent process reduce the in-medium effects on the D-meson compared to
previous works.


title:
Restricted locality of quark-hadron duality in exclusive meson
  photoproduction reactions above the resonance region

abstract:
  We show how deviations from the dimensional scaling laws for exclusive
processes may be related to a breakdown in the locality of quark-hadron
duality, i.e. the "restricted locality". For exclusive reactions like meson
photo- and electroproduction above the resonance region, we explore the effects
arising from such a local duality breaking and propose that it can be a
possible source for oscillations about the smooth quark counting rule predicted
by pQCD in the 90-degree differential cross sections.


title:
Quantization and High Energy Unitarity of 5D Orbifold Theories with
  Brane Kinetic Terms

abstract:
  Five-dimensional field theories compactified on an S^1/Z_2 orbifold naturally
include local brane kinetic terms at the orbifold fixed points at the tree as
well as the quantum level. We study the quantization of these theories before
the Kaluza--Klein reduction and derive the relevant Ward and Slavnov-Taylor
identities that result from the underlying gauge and Becchi-Rouet-Stora
symmetries of the theory. With the help of these identities, we obtain a
generalization of the equivalence theorem, where the known high-energy
equivalence relation between the longitudinal Kaluza-Klein gauge modes and
their respective would-be Goldstone bosons is extended to consistently include
the energetically suppressed terms in the high-energy scatterings. Demanding
perturbative unitarity, we compute upper limits on the number of the
Kaluza-Klein modes. We find that these limits weakly depend on the size of the
brane kinetic terms.


title: Majorana zero modes

abstract:
  We derive the zero mode solutions for a Majorana fermion in the background of
a cosmic string and contrast it with the zero mode solution for a (neutral)
Dirac fermion. A Majorana zero mode carries no vector or axial charge, and it
cannot be bosonised. We study the implications for vorton formation and
stability. In the massless limit stability of the zero mode is guaranteed by
energy-momentum conservation. However, zero modes obtain an effective mass on
string loops. It is found that the conditions under which current formation can
be effective are exactly those for which zero mode decay is most likely to
occur.


title: Chiral cosmic strings in supergravity

abstract:
  We consider F and D-term cosmic strings formed in supersymmetric theories.
Supersymmetry is broken inside the string core, but restored outside. In global
SUSY, this implies the existence of goldstino zero modes, and the string
potentially carries fermionic currents. We show that these zero modes do not
survive the coupling to gravity, due to the super Higgs mechanism. Therefore
the superconductivity and chirality properties are different in global and
local supersymmetry. For example, a string formed at the end of D-term
inflation is chiral in supergravity but non-chiral in global SUSY.


title: The Four-Loop QCD Beta-Function and Anomalous Dimensions

abstract:
  The four-loop beta-function of quantum chromodynamics is calculated and
agreement is found with the previous result. The anomalous dimensions of the
quark-gluon vertex, and quark, gluon and ghost fields are given for a general
compact simple Lie group.


title: Heavy Quarkonia Survival in Potential Model

abstract:
  We investigate the quarkonia correlators in QCD with no light quarks within a
potential model with different screened potentials. Our results for the
temperature dependence of the charmonium and bottomonium correlators are
qualitatively consistent with existing and preliminary lattice results. We
identify however, a much reacher structure in the correlators than the one seen
on the lattice.


title:
SU(3)_{c} X SU(3)_{L} X U(1)_{X} models for \beta arbitrary and families
  with mirror fermions

abstract:
  A detailed and general study of the fermionic structure of the 331 models
with \beta arbitrary is carried out based on the criterion of cancellation of
anomalies. We consider models with an arbitrary number of lepton and quark
generations, but requiring to associate only one lepton and one quark SU(3)
_{L} multiplet for each generation, and at most one right-handed singlet per
each left-handed fermion. We see that the number of quark left-handed
multiplets must be three times the number of leptonic left-handed multiplets.
Furthermore, we consider a model with four families and \beta =-1/\sqrt{3}
where the additional family corresponds to a mirror fermion of the third
generation of the Standard Model. We also show how to generate ansatzs about
the mass matrices of the fermions according to the phenomenology. In
particular, it is possible to get a natural fit for the neutrino hierarchical
masses and mixing angles. Moreover, by means of the mixing between the third
quark family and its mirror fermion, a possible solution for the A_{FB}^{b}
discrepancy is obtained.


title: Phenomenology of the Littlest Higgs with T-Parity

abstract:
  Little Higgs models offer an interesting approach to weakly coupled
electroweak symmetry breaking without fine tuning. The original little Higgs
models were plagued by strong constraints from electroweak precision data which
required a fine tuning to be reintroduced. An economical solution to this
problem is to introduce a discrete symmetry (analogous to R-parity of SUSY)
called T-parity. T-parity not only eliminates most constraints from electroweak
precision data, but it also leads to a promising dark matter candidate. In this
paper we investigate the dark matter candidate in the littlest Higgs model with
T-parity. We find bounds on the symmetry breaking scale f as a function of the
Higgs mass by calculating the relic density. We begin the study of the LHC
phenomenology of the littlest Higgs model with T-parity. We find that the model
offers an interesting collider signature that has a generic missing energy
signal which could "fake" SUSY at the LHC. We also investigate the properties
of the heavy partner of the top quark which is common to all littlest Higgs
models, and how its properties are modified with the introduction of T-parity.
We include an appendix with a list of Feynman rules specific to the littlest
Higgs with T-parity to facilitate further study.


title: Comment on The Evidence for a Pentaquark and Kinematic Reflections

abstract:
  The Regge exchange model used by Dzierba et al. is shown to be questionable,
since the pion pole term is not allowed. Hence the Regge amplitudes in their
calculation are exaggerated. The amount of kinematic reflection in the mass
spectrum of the (nK+) system, which is one decay channel of a possible
pentaquark, is not well justified in the fitting procedure used by Dzierba et
al., as shown by comparison with the (K+K-) invariant mass spectrum, which is
one decay channel of the a_2 and f_2 tensor mesons. While kinematic reflections
are still a concern in some papers that have presented evidence for the
pentaquark, better quantitative calculations are needed to demonstrate the
significance of this effect.


title:
Single production of new gauge bosons from the littlest Higgs model at
  the $TeV$ energy $e^{-}\gamma$ colliders

abstract:
  In the context of the littlest Higgs(LH) model, we study single production of
the new gauge bosons $B_{H}$, $Z_{H}$ and $W_{H}^{\pm}$ via $e^{-}\gamma$
collisions and discuss the possibility of detecting these new particles in the
$TeV$ energy $e^{+}e^{-}$ collider($LC$). We find that these new particles can
not be detected via the $e^{-}\nu\nu$ signal in all of the parameter space
preferred by the electroweak precision data. However, the heavy gauge bosons
$B_{H}$ and $Z_{H}$ may be observed via the decay channel $B_{H}(Z_{H})\to
l^{+}l^{-}$ in wide range of the parameter space.


title: The Generalized Counting Rule and Oscillatory Scaling

abstract:
  We have studied the energy dependence of the $pp$ elastic scattering data and
the pion-photoproduction data at 90$^\circ$ c.m. angle in light of the new
generalized counting rule derived for exclusive processes. We show that by
including the helicity flipping amplitudes (with energy dependence given by the
generalized counting rule) and their interference with the Landshoff amplitude,
we are able to reproduce the energy dependence of all cross-section and
spin-correlation (A$_{NN}$) data available above the resonance region. The
pion-photoproduction data can also be described by this approach, but in this
case data with much finer energy spacing is needed to confirm the oscillations
about the scaling behavior.


title:
The effect of strong interactions on quarks' electromagnetic vector
  vertex

abstract:
  This paper studies the correction of electromagnetic vector vertex of quarks
due to the strong interactions.


title: Confinement and fat-center-vortices model

abstract:
  In this paper I review shortly potentials obtained for SU(2), SU(3) and SU(4)
static sources from fat-center-vortices model. Results confirm the confinement
of quarks in all three gauge groups. Proportionality of string tensions with
flux tube counting is better than Casimir scaling especially for SU(4).


title:
Energy- Angular Correlation of Medium Energy Particles Produced in Heavy
  Ion Collisions

abstract:
  The nuclear photo-emulsion technique is used to study the information carried
by the medium energy nucleons produced in heavy ion collisions. Multiplicity,
energies as well as the angular distribution of this type of particles are
measured. Due to the difficulties in measuring the energy only some particles
having special criteria could be selected to measure their energy with
consenting accuracy. A hypothetical model is proposed to correlate the energy
of the produced particles to their emission angles so that it becomes easy to
estimate the energy distribution in terms of measured emission angle. The
proposed model is constructed upon statistical thermodynamic assumptions.
Moreover, two additional base functions are originated that play the role of
the statistical angular weight factor and the nuclear density of the compressed
nuclear matter at the moment of particle emission. The prediction of the model
are compared with complete set of measured data of the reactions of proton,
helium, carbon and neon nuclei with the composite emulsion nuclei as target at
4.2 A GeV.


title:
May Heavy hadrons of the 4th generation be hidden in our Universe while
  close to detection?

abstract:
  Metastable quarks of 4th generation are predicted in the framework of
heterotic string phenomenology. Their presence in heavy stable hadrons are
usually strongly constrained; however their hidden compositions in Heavy doubly
charged baryons here considered are found to be still allowable: we studied
their primordial quark production in the early Universe, their freezing into
cosmic Heavy hadrons, their later annihilation into cosmic ray as well as their
relic presence in our Universe and among us on Earth. We discuss also their
possible production in present or future accelerators. Indeed if the lightest
quarks and antiquarks of the 4th generation are stored in doubly charged
baryons and neutral mesons, their lifetime can exceed the age of the Universe;
the existence of such an anomalous Helium-like (and neutral Pion-like) stable
particles may escape present experimental limits, while being close to present
and future experimental test. On the contrary primordial abundance of lightest
hadrons of the 4th generation with charge +1 can not decrease below the
experimental upper limits on anomalous hydrogen and therefore (if stable) it is
excluded. While 4th quark hadrons are rare, their presence may play different
and surprising role in cosmic rays, muon and neutrino fluxes and cosmic
electromagnetic spectra. Most of these traces are tiny, but just nearly
detectable.


title:
Effective Lagrangian for $\bar q\tilde q'_i\chi^+_j$, $\bar q\tilde
  q'_i\chi^0_j$ interactions and Fermionic Decays of the Squarks with CP Phases

abstract:
  The one loop corrected effective Lagrangian for the quark-squark-chargino and
quark-squark-neutralino interactions is computed. The effective Lagrangian
takes into account the loop corrections arising from the exchange of the
gluinos, charginos, neutralinos, W, Z, the charged Higgs, and the neutral
Higgs. We further analyze the squark decays into charginos and neutralinos and
discuss the effect of the loop corrections on them. The analysis takes into
account CP phases in the soft parameters. It is found that the loop corrections
to the stop decay widths into chargino and neutralinos can be as much as thirty
percent or even larger. Further, the stop decay widths show a strong dependence
on the CP phases. These results are of relevance in the precision predictions
of squark decays in the context of specific models of soft breaking in
supergravity and string based models.


title: No--scale supergravity and the Multiple Point Principle

abstract:
  We review symmetries protecting a zero value for the cosmological constant in
no--scale supergravity and reveal the connection between the Multiple Point
Principle, no--scale and superstring inspired models.


title: 2004 TASI Lectures on Neutrino Physics

abstract:
  I discuss, in a semi-pedagogical way, our current understanding of neutrino
physics. I present a brief history of how the neutrino came to be ``invented''
and observed, and discuss the evidence that led to the recent discovery that
neutrinos change flavor. I then spend some time presenting mass-induced
neutrino flavor change (neutrino oscillation), and how it pieces all the
neutrino puzzles except for the LSND anomaly, which is also briefly discussed.
I conclude by highlighting the importance of determining the nature of the
neutrinos, i.e., are they Dirac or Majorana fermions.


title: Approximate solutions for the Higgs masses and couplings in the NMSSM

abstract:
  We find the approximate solutions for the Higgs masses and couplings in the
NMSSM with exact and softly broken PQ--symmetry. The obtained solutions
indicate that there exists a mass hierarchy in the Higgs spectrum which is
caused by the stability of the physical vacuum.


title: Perspectives on the Standard Model

abstract:
  We discuss recent results from global electroweak fits and from the Tevatron
and review the motivation for physics at the TeV energy scale.


title:
Multi-Particle Correlation among Grey particles Emitted in
  Nucleus-Nucleus Interactions

abstract:
  The short range correlation among the emitted knock on nucleons from heavy
ion collisions is used to reveal the dynamic characteristics of the reactions
at medium and high energy collisions. Two and three particle correlations are
considered in angular space to explain the emission of particles from
collectively excited states of the nucleus as a Fermi liquid drop. Positive
correlation is detected only among particles emitted in the extreme backward
direction which is the coldest domain, and interpreted as direct nonstatistical
emission (splashing) of nucleons via the dynamical distortion of the Fermi
surface accompanying the collective motion.


title: Extraction of m_s and |V_us| from Hadronic Tau Decays

abstract:
  We review recent work to determine the strange quark mass m_s as well as the
proposal to determine |V_{us}| using hadronic tau decay data. The recent update
of the strange spectral function by OPAL and their moments of the invariant
mass distribution are employed. Our results are |V_us|=0.2208 +- 0.0034 and m_s
(2 GeV)=81 +- 22 MeV. Our result is already competitive to the standard
extraction of |V_us| from K_e3 decays and to the new proposals to determine it.
The error on V_us is dominated by experiment and will be eventually much
improved by the B-factories hadronic tau data.
  Ultimately, a simultaneous fit of both m_s and |V_us| to a set of moments of
the hadronic tau decays invariant mass distribution will provide one of the
most accurate determinations of these Standard Model parameters.


title: Dark Energy in an Axion Model with Explicit Z(N) Symmetry Breaking

abstract:
  We point out that a well known axion model with an explicit Z(N) symmetry
breaking term predicts both dark energy and cold dark matter. We estimate the
parameters of this model which fit the observed densities of the dark
components of the universe. We find that the parameters do not conflict with
any observations.


title: Maximal CP Violation Hypothesis and Phase Convention of the CKM Matrix

abstract:
  The maximal CP violation hypothesis depends on the phase convention of the
Cabibbo-Kobayashi-Maskawa matrix. A phase convention which leads to successful
prediction under the maximal CP violation hypothesis is searched, and thereby,
possible structures of the quark mass matrices are speculated.


title:
Chiral and U(1)_A restorations high in the hadron spectrum,
  semiclassical approximation and large N_c

abstract:
  In quantum systems with large $n$ (radial quantum number) or large angular
momentum the semiclassical (WKB) approximation is valid. A physical content of
the semiclassical approximation is that the quantum fluctuations effects are
suppressed and vanish asymptotically. The chiral as well as $U(1)_A$ breakings
in QCD result from quantum fluctuations. Hence these breakings must be
suppressed high in the spectrum and the spectrum of high-lying hadrons must
exhibit $U(2)_L \times U(2)_R$ symmetry of the classical QCD Lagrangian. This
argument can be made stronger for mesons in the large $N_c$ limit. In this
limit all mesons are stable against strong decays and the spectrum is infinite.
Hence, one can excite mesons of arbitrary large size with arbitrary large
action, in which case the semiclassical limit is manifest. Actually we do not
need the exact $N_c=\infty$ limit. For any large action there always exist such
$N_c$ that the isolated mesons with such an action do exist and can be
described semiclassically. From the empirical fact that we observe multiplets
of chiral and $U(1)_A$ groups high in the hadron spectrum it follows that
$N_c=3$ is large enough for this purpose.

categories: hep-ph hep-ex hep-lat hep-th nucl-ex nucl-th


title:
Lepton Flavour Violation in the Minimal SO(10) GUT Model and in the
  Standard Model with additional Heavy Dirac Neutrinos

abstract:
  Lepton flavour violation is considered in two models, Standard Model with
additional heavy Dirac neutrinos and minimal supersymmetric standard model
(MSSM) with SO(10) theoretical frame and minimal SUGRA (mSUGRA) SUSY-breaking
mediation mechanism. The models are briefly explained. The structure of the
amplitudes for neutrinoless decays of the lepton into a lepton and semileptonic
neutrinoless decays of a lepton is given. The method for identification of
meson content in the quark currents is exposed. The comparison of the
amplitudes is made showing which of the processes have the largest branching
ratios. The numerical results for the dominant decay rates are presented.


title: Big Bang and Heavy Particles

abstract:
  A possibility of existence of ultra-heavy (quasi)stable particles, mechanisms
leading to their large life-time, their production in the early universe, and
cosmological manifestations are reviewed.


title:
Angular distribution asymmetry in tau^- --> pi^- pi^0 nu_tau decay in
  the two-Higgs-doublet model with large tan beta

abstract:
  We study possible scalar type interactions in tau^- -->pi^- pi^0 nu_tau
decay. One finds that an angular distribution asymmetry, A(s), can be induced
from the interference between the scalar part and vector part amplitudes in
this decay. Our analysis shows that, in the two-Higgs-doublet model of type II
with large tan beta, the charged Higgs contribution could make A(s) up to
10^{-3} without conflict with present experimental constraints. Thus in the
future precise experiments in tau-charm factories, this angular distribution
asymmetry may be an interesting observable either to be helpful in searching
for the signal of the charged Higgs boson or to impose the significant bound on
it.


title: Charmed-meson spectroscopy in QCD sum rule

abstract:
  We elaborate masses of open-charm mesons (c\bar{d} and c\bar{s}) with
J^P=0^-,1^-,0^+,1^+ from a viewpoint of ordinary light-heavy systems in the
analysis of standard Borel-transformed QCD sum rule. This analysis is
implemented with the operator product expansion up to dimension 6, permitting
corrections to the order alpha_s and to the order m_s, and without relying on
1/m_c-expansion. The obtained results following our stringent criteria for the
continuum-threshold dependence, the Borel window and the Borel stability,
indicate that the charmed-meson masses in the 0^+ channel are overestimated by
100 \sim 200 MeV in comparison with the experimental data, which were recently
reported as the rather broad state of D^{*+}(2351) and the extremely narrow
state of D_s^{*+}(2317), respectively. Such large mass-discrepancies from the
data cannot be seen in other channels, where conversely our results of the
c\bar{s}-meson masses are even underestimated somewhat in comparison with data,
independent of the value of the strange-quark mass adopted in our calculations.
  From these results, it might be expected that the measured low mass of
D_s^{*+}(2317) is a manifestation of an exotic state with the structures of a
four-quark or a molecule, while at present the D^{*+} is not in conflict with
the existing data due to its large width.


title: Orbifold Compactification and Related Phenomenology

abstract:
  In this lecture, starting with GUT we go through the field theoretic and
stringy orbifold compactification of extra dimensions toward their application
to low energy particle physics.


title: Un-integrated PDFs in CCFM

abstract:
  The un-integrated parton distribution functions (uPDFs) obtained from a CCFM
evolution are studied in terms of the intrinsic transverse momentum
distribution at low scales. The uPDFs are studied for variations of the
renormalization and factorization scales.


title: Large Mass Scale by Strong Gauge Dynamics with Infrared Fixed Point

abstract:
  We consider a mechanism for realizing the desired decoupling of
strongly-coupled sector which is supposed to generate hierarchical structure of
the Yukawa couplings. In our mechanism, the same strongly-coupled sector is
responsible for generating a sufficiently flat potential and a large vacuum
expectation value (VEV) of a gauge-singlet scalar field by suppressing its soft
scalar mass and self-coupling. Vacuum instability is caused by
supersymmetry-breaking A-term of order 10 TeV. We explicitly demonstrate the
infrared convergence of soft scalar masses due to strongly-coupled dynamics and
show the soft mass of the singlet is at most comparable to soft masses of
squarks and sleptons, which are much suppressed than the A-term. The physical
mass scale of the decoupling is calculated in a self-consistent way. We also
reinterpret the result in terms of a RG-improved effective potential.


title: Finite-Temperature Yang-Mills Theory in Landau Gauge

abstract:
  The gluon and ghost propagators in Landau Gauge Yang-Mills Theory are
investigated. Self-consistent solutions are obtained from their equations of
motion above and below the presumed phase transition. Gluon confinement is
manifest in these solutions and can be read off the infrared behavior of the
gluon and ghost propagators. Confinement prevails below the presumed phase
transition. Above and in the infinite temperature limit, a qualitative change
is observed: The chromoelectric sector exhibits screening, while long-range
chromomagnetic interactions, mediated by soft modes, are still observed. At
least part of the gluon spectrum is still confined. These findings agree with
corresponding lattice results.


title: How High is High x?

abstract:
  A general three quark bound state satisfying the Pauli principle, and
conserving angular momentum and isospin, is used to investigate the spin
structure of nucleons at high $x$. It is shown that, if a spin up quark
dominates as $x$$\to$1 for a spin up proton, it must be a u quark. Then both
$A_{1p}$ and $A_{1n}$, as well as the quark spin distribution $\Delta u/u$,
will approach 1 as $x$$\to$1. The spin distribution $\Delta d/d$ does not
approach 1, but is bound by the limits $-{1/3}\le\Delta d/d\le 0$ for any $x$.
The ratio {$F_{1n}/F_{1p}$ will approach 1/4} (not3/7).


title: Leptonic widths of high excitations in heavy quarkonia

abstract:
  Agreement with the measured electronic widths of the $\psi(4040)$,
$\psi(4415)$, and $\Upsilon (11019)$ resonances is shown to be reached if two
effects are taken into account: a flattening of the confining potential at
large distances and a total screening of the gluon-exchange interaction at
$r\ga 1.2$ fm. The leptonic widths of the unobserved $\Upsilon(7S)$ and
$\psi(5S)$ resonances: $\Gamma_{e^+e^-}(\Upsilon (7S))=0.11$ keV and
$\Gamma(\psi(5S))\approx 0.54$ keV are predicted.


title: Eta-eta' masses and mixing: a large N_c reappraisal

abstract:
  We reconcile the 1/N_c expansion with the observed eta-eta' mass spectrum.
The chiral corrections introduced for that purpose are natural and consistent
with the octet-singlet mixing angle theta=-(22\pm 1)^{\circ} extracted from
phenomenology in the large N_c limit.


title: Chiral Lagrangians at finite temperature and the Polyakov Loop

abstract:
  Heat kernel expansions at finite temperature of massless QCD and chiral quark
models generate effective actions relevant for both low and high temperature
QCD. The key relevance of the Polyakov Loop to maintain the large and
non-perturbative gauge invariance at finite temperature is stressed.


title: QCD, hadrons and beyond

abstract:
  I give a summary of Section E of the sixth edition of the Conference "Quark
confinement and the hadron spectrum". Papers were presented on different
subjects, from spectroscopy, including pentaquarks and hadron structure, to new
physics effects (non commutative field theories, supersymmetry and extra
dimensions) and the problem of color confinement, both in ordinary Yang-Mills
models and in supersymmetric Yang-Mills.


title: Charm Production in NN and $\gamma N$ Collisions

abstract:
  The processes of open and hidden charm production in $NN$ collisions and of
open charm production in $\gamma N$ collisions are studied. The near-threshold
cross section is predicted and polarization phenomena are calculated in frame
of an effective Lagrangian approach.


title:
Exotic hadrons from dynamical clustering of quarks in ultrarelativistic
  heavy ion collisions

abstract:
  Results from a model study on the formation of exotic quark clusters at the
hadronization stage of a heavy ion collision are presented. The dynamical quark
molecular dynamics (qMD) model which is used is sketched, and results for
exotica made of up to six (anti-)quarks are shown. The second part focuses on
pentaquarks. The rapidity distribution are shown, and the distribution of
strangeness is found to yield an indicator of thermalization and homogenisation
of the deconfined quark system. Relative Theta^+ yields are found to be lower
than thermal model estimates.


title: Effect of quark off-shellness in DIS and the Drell-Yan process

abstract:
  We study higher twist corrections to the perturbative QCD cross sections for
ep deep inelastic scattering and the Drell-Yan lepton pair production in pp
collision. The corrections arise due to the initial state interaction of the
active quarks with the spectator partons. The effect of this interaction is
calculated by dressing the incoming quark lines with phenomenological single
parameter Breit-Wigner spectral functions and taking into account the full
off-shell kinematics. The quark width in the proton is estimated by analyzing
the data on Drell-Yan triple differential cross section from the experiment
E866 at Fermilab.


title: Sneutrino Hybrid Inflation in Supergravity

abstract:
  We propose a hybrid inflation scenario in which the singlet sneutrino, the
superpartner of the right-handed neutrino, plays the role of the inflaton. We
study a minimal model of sneutrino hybrid inflation in supergravity, where we
find a spectral index $n_s \approx 1 + 2 \gamma$ with $|\gamma| \lesssim 0.02$,
and predict a running spectral index $|d n_s/d\ln k| \ll |\gamma|$ and a
tensor-to-scalar ratio $r \ll \gamma^2$ for field values well below the Planck
scale. In our scenario, the baryon asymmetry of our universe can be explained
via non-thermal leptogenesis and a low reheat temperature $T_{RH} \approx
10^{6}$ GeV can be realized.


title: Constituent quark model study of the meson spectra

abstract:
  The $q\bar q$ spectrum is studied in a generalized constituent quark model
constrained in the study of the $NN$ phenomenology and the baryon spectrum. An
overall good fit to the available experimental data is obtained. A detailed
analysis of all sectors from the light-pseudoscalar and vector mesons to
bottomonium is performed paying special attention to the existence and nature
of some non well-established states. These results should serve as a
complementary tool in distinguishing conventional quark model mesons from
glueballs, hybrids or multiquark states.


title:
Inclusive Production of Single Hadrons with Finite Transverse Momenta in
  Deep-Inelastic Scattering at Next-to-Leading Order

abstract:
  We calculate the cross section for the inclusive production of single hadrons
with finite transverse momenta in deep-inelastic scattering at next-to-leading
order (NLO), i.e. through O(alpha_s^2), in the parton model of QCD endowed with
non-perturbative parton distribution functions (PDFs) and fragmentation
functions (FFs). The NLO correction is found to produce a sizeable enhancement
in cross section, of up to one order of magnitude, bringing the theoretical
prediction to good agreement with recent measurements for neutral pions and
charged hadrons at DESY HERA. This provides a useful test for the universality
and the scaling violations of the FFs predicted by the factorization theorem.
Such comparisons can also be used to constrain the gluon PDF of the proton.


title: Baryogenesis and Leptogenesis

abstract:
  The energy budget of the universe contains two components, dark matter and
dark energy, about which we have much to learn. One should not forget, however,
that the baryonic component presents its own questions for particle cosmology.
In the context of cosmology, baryons would have annihilated with their
antiparticles in the early universe, leaving a negligible abundance of baryons,
in disagreement with that observed. In this general lecture, delivered at the
SLAC 2004 Summer Science Institute, I provide an overview of the central issue
and the general principles behind candidate models. I also briefly discuss some
popular examples of models that are firmly rooted in particle physics.


title: Edms in SUSY GUTS

abstract: Hadronic and leptonic EDMs in SUSY GUTs are reviewed in this article.


title: Three neutrino flavor oscillations and the atmospheric tau neutrinos

abstract:
  Downward going atmospheric tau neutrino flux is estimated in the presence of
three neutrino flavor oscillations for 1 GeV < E < 10^3 GeV.
  The relative differences between the three and purely two neutrino flavor
oscillations are elaborated. As an implication, the downward going atmospheric
tau neutrino flux is compared with the galactic plane tau neutrino flux that is
also estimated in the presence of three neutrino flavor oscillations. It is
pointed out that the galactic plane tau neutrino flux dominates over the
downward going atmospheric tau neutrino flux until E \sim 10 GeV.


title: Corrections to Quark Asymmetries at LEP

abstract:
  The most precise measurement of the weak mixing angle sin^2(theta) at LEP is
from the forward-backward asymmetry e+e- --> bbbar at the Z-pole. In this note
the QED and electroweak radiative corrections to obtain the pole asymmetry from
the measured asymmetry for b- and c-quarks have been calculated using ZFITTER,
which has been amended to allow a consistent treatment of partial two-loop
corrections for the b-quark final asymmetries.
  A total correction of dAfbb=0.0019+/-0.0002 and dAfbc=0.0064+/-0.0001 has
been found, where the remaining theoretical uncertainty is much too small to
explain the apparent discrepancy between sin^2(theta) obtained from Afbb and
from the left-right asymmetry at SLD.


title: Resolution to the $B\to\phi K^*$ polarization puzzle

abstract:
  We resolve the $B\to\phi K^{*}$ polarization puzzle by postulating a smaller
$B\to K^*$ form factor $A_0\approx 0.3$ and by adding penguin annihilation and
nonfactorizable contributions from the perturbative QCD approach. If this
explanation is valid, the penguin-dominated modes governed by the $B\to K^*$
form factors, such as $B^+\to K^{*+} K^{*0}$ and $B^0\to K^{*0} {\bar K}^{*0}$,
should exhibit similar polarization fractions. Our resolution is compared with
others in the literature, and experimental discrimination is proposed.


title:
Using Tau Polarization to Discriminate between SUSY Models and Determine
  SUSY Parameters at ILC

abstract:
  In many SUSY models the first SUSY signal in the proposed International
Linear Collider is expected to come from the pair production of $\tilde\tau_1$,
followed by its decay into $\tau$+LSP. We study a simple and robust method of
measuring the polarization of this $\tau$ in its 1-prong hadronic decay
channel,and show how it can be used to discriminate between SUSY models and to
determine SUSY parameters.


title: Factorization and Universality in Azimuthal Asymmetries

abstract:
  The theoretical status on transverse momentum dependent factorization in
semi-inclusive DIS and Drell-Yan is not clear in contrast to claims in the
literature in which gauge links only at one loop were considered explicitly.
Recent obtained results beyond this order questions the validity of these
claims and will be briefly discussed. Possible input from experiments to solve
these matters will be outlined.


title: Kaon weak interactions in powers of 1/Nc

abstract:
  I review a recent analytic method for computing matrix elements of
electroweak operators based on the large-Nc expansion. In particular, I give a
rather detailed description of the matching of the quark Lagrangian onto the
meson chiral Lagrangian governing K0-K0bar mixing. In the DeltaS=1 sector, I
explain how to obtain an estimate for both epsilon'/epsilon and the DeltaI=1/2
rule. Finally, I give an example of how the method can also be useful for
lattice calculations.


title:
Direct test of the MSW effect by the solar appearance term in beam
  experiments

abstract:
  We discuss if one can verify the MSW effect in neutrino oscillations at a
high confidence level in long-baseline experiments. We demonstrate that for
long enough baselines at neutrino factories, the matter effect sensitivity is,
as opposed to the mass hierarchy sensitivity, not suppressed by $\sin^2 2
\theta_{13}$ because it is driven by the solar oscillations in the appearance
probability. Furthermore, we show that for the parameter independent direct
verification of the MSW effect at long-baseline experiments, a neutrino factory
with a baseline of at least 6000 km is needed. For superbeams, we do not find a
$5\sigma$ discovery potential of the MSW effect independent of $\sin^2 2
\theta_{13}$. We finally summarize different methods to test the MSW effect.


title: Gauge Symmetry and its Implications for the Schwinger-Dyson Equations

abstract:
  Gauge theories have been a cornerstone of the description of the world at the
level of the fundamental particles. The Lagrangian or the action describing the
corresponding interactions is invariant under certain gauge transformations.
This symmetry is reflected in terms of the Ward-Green-Takahashi (or the
Slavnov-Taylor) identities which relate various Green functions among each
other, and the Landau-Khalatnikov-Fradkin transformations which relate a Green
function in a particular gauge to it in an arbitrary covariant one. As an
outcome, all physical observables should be independent of the choice of the
covariant gauge parameter. The most systematic scheme to solve quantum field
theories (QFT) is perturbation theory where the above-mentioned identities are
satisfied at every order of approximation. This feature is exploited highly
usefully as a verification of the results obtained after time- and
effort-consuming exercises. As it stands, not all natural phenomena are
realized in the perturbative regime of QFTs. Therefore, one is inevitably led
to make efforts to solve these theories in a non perturbative fashion. A
natural starting point for such studies in the continuum are the
Schwinger-Dyson Equations (SDE). One of the most undesirable features
associated with their non perturbative truncation is the loss of highly and
rightly esteemed gauge invariance rendering the predictions less reliable.
Arguably, the only hope we have to recuperate the credibility of the results is
to employ only such truncation schemes which yield predictions that match onto
the blindly reliable perturbative ones at every order of approximation. It is a
highly difficult task but not impossible.


title: Two-meson cloud contribution to the baryon antidecuplet binding

abstract:
  We study the two-meson virtual cloud contribution to the self-energy of the
SU(3) antidecuplet, to which the Theta+ pentaquark is assumed to belong. This
is motivated by the large branching ratio of the N(1710) decay into two pions
and one nucleon. We derive effective Lagrangians that describe the N(1710)
decay into N-pi-pi with two pions in s or p wave. We obtain increased binding
for all members of the antidecuplet and a contribution to the mass splitting
between states with different strangeness which is at least 20 % of the
empirical one. We also provide predictions for three-body decays of the
pentaquark antidecuplet.


title: Neutrino Oscillations in Deconstructed Dimensions

abstract:
  We present a model for neutrino oscillations in the presence of a
deconstructed non-gravitational large extra dimension compactified on the
boundary of a two-dimensional disk. In the deconstructed phase, sub-mm lattice
spacings are generated from the hierarchy of energy scales between 1 TeV and
the usual B-L breaking scale 10^{15} GeV. Here, short distance cutoffs down to
1 eV can be motivated by the strong coupling behavior of gravity in local
discrete extra dimensions. This could make it possible to probe the
discretization of extra dimensions and non-trivial field configurations in
theory spaces which have only a few sites, i.e., for coarse latticizations.
Thus, the model has relevance to present and future precision neutrino
oscillation experiments.


title: Why quarks cannot be fundamental particles

abstract:
  Many reasons why quarks should be considered composite particles are found in
the book Preons by D'Souza and Kalman. One reason not found in the book is that
all the quarks except for the u quark decay. The electron and the electron
neutrino do not decay. A model of fundamental particles based upon the weak
charge is presented.


title:
The massive neutrino-like particle of the non-linear electromagnetic
  field theory

abstract:
  A special non-linear electromagnetic field theory - the curvilinear wave
electrodynamics (CWED), whose equation in the matrix form is similar to the
equation of the Dirac lepton theory, is offered. It is shown that the solution
of this equation is the motion of the circilarly polarized electromagnetic wave
on a circular trajectory. It is also shown that such wave can be considered as
a massive neutral particle with half spin, similar to neutrino. This theory is
mathematically concurrent to the neutrino theory of Standard Model, but does
not have the contradictions of the Standard Model with last data of neutrino
experiments.


title: Conical Flow induced by Quenched QCD Jets

abstract:
  Quenching is a recently discovered phenomenon in which QCD jets created in
heavy ion collisions deposit a large fraction or even all their energy and
momentum into the produced matter. At RHIC and higher energies, where that
matter is a strongly coupled Quark-Gluon Plasma (sQGP) with very small
viscosity, we suggest that this energy/momentum propagate as a collective
excitation or ``conical flow''. Similar hydrodynamical phenomena are well
known, e.g. the so called sonic booms from supersonic planes. We solve the
linearized relativistic hydrodynamic equations to detail the flow picture. We
argue that for RHIC collisions the direction of this flow should make a cone at
a specific large angle with the jet, of about $70^o$, and thus lead to peaks in
particle correlations at the angle $\Delta\phi=\pi\pm 1.2$ rad relative to the
large-$p_t$ trigger. This angle happens to matchperfectly the position of the
maximum in the angular distribution of secondaries associated with the trigger
recently seen by the STAR and PHENIX collaborations. We also discuss briefly
possible alternative explanations and suggest some further tests to clarify the
mechanism.


title: Beta decays with momentum space Majorana spinors

abstract:
  We construct and apply to beta decays a truly neutral local quantum field
that is entirely based upon momentum space Majorana spinors. We make the
observation that theory with momentum space Majorana spinors of real C parities
is equivalent to Dirac's theory. For imaginary C parities, the neutrino mass
can drop from the single beta decay trace and reappear in 0\nu \beta \beta, a
curious and in principle experimentally testable signature for a non-trivial
impact of Majorana framework in experiments with polarized sources.


title: The Use of the Scattering Phase Shift in Resonance Physics

abstract:
  The scattering phase shift encodes a good amount of physical information
which can be used to study resonances from scattering data. Among others, it
can be used to calculate the continuum density of states and the collision time
in a resonant process. Whereas the first information can be employed to examine
the evolution of unstable states directly from scattering data, the second one
serves as a tool to detect resonances and their properties. We demonstrate both
methods concentrating in the latter case on 'exotic' resonances in pi-pi and
pi-K scattering.