title: Scalars in the hadron world: the Higgs sector of the strong interaction

abstract:
  Scalar mesons are a key expression of the strong physics regime of QCD and
the role condensates, particularly $<q{\bar q}>$, play in breaking chiral
symmetry.
  What new insights have been provided by recent experiments on $D, D_s$ and
$J/\psi$ decays to light hadrons is discussed. We need to establish whether all
the claimed scalars $\sigma$, $\kappa$, $f_0(1370)$, etc., really exist and
with what parameters before we can meaningfully speculate further about which
is transiently ${\bar q}q$, ${\bar{qq}} qq$, multi-meson molecule or largely
glue.


title: Theoretical Aspects of the Pion-Pion Interaction

abstract:
  We give a brief review of the theoretical description of low energy pion-pion
scattering by the combined use of Chiral Perturbation Theory and Roy equations,
an update of the Regge parametrization of $\pi\pi$ cross sections at high
energies, and a short discussion of the scalar radius of the pion.


title: Standard Model Top Quark Asymmetry at the Fermilab Tevatron

abstract:
  Top quark pair production at proton-antiproton colliders is known to exhibit
a forward-backward asymmetry due to higher-order QCD effects. We explore how
this asymmetry might be studied at the Fermilab Tevatron, including how the
asymmetry depends on the kinematics of extra hard partons. We consider results
for top quark pair events with one and two additional hard jets. We further
note that a similar asymmetry, correlated with the presence of jets, arises in
specific models for parton showers in Monte Carlo simulations. We conclude that
the measurement of this asymmetry at the Tevatron will be challenging, but
important both for our understanding of QCD and for our efforts to model it.


title: Fermion masses and mixings from heterotic orbifold models

abstract:
  We search for a possibility of getting realistic fermion mass ratios and
mixing angles from renormalizable couplings on the Z_6-I heterotic orbifold
with one pair of Higgs doublets. In the quark sector, we find cases with
reasonable m_c/m_t, m_s/m_b, and V_{cb}, if we ignore the first family. In the
lepton sector, we can fit the charged lepton mass ratios, the neutrino mass
squared difference ratio, and the lepton mixing angles, considering all three
families.


title: Applications of AdS/CFT Duality to QCD

abstract:
  Even though quantum chromodynamics is a broken conformal theory, the AdS/CFT
correspondence has led to important insights into the properties of QCD. For
example, as shown by Polchinski and Strassler, dimensional counting rules for
the power-law falloff of hadron scattering amplitudes follow from dual
holographic models with conformal behavior at short distances and confinement
at large distances. We find that one also obtains a remarkable representation
of the entire light-quark meson and baryon spectrum, including all orbital
excitations, based on only one mass parameter. We also show how hadron
light-front wavefunctions and hadron form factors in both the space-like and
time-like regions can be predicted.


title: Nonlinear evolution of pomeron and odderon in momentum space

abstract:
  The small x evolution of the QCD pomeron and the QCD odderon is investigated
in the mean field limit of the Color Glass Condensate. The resulting system of
coupled nonlinear evolution equations is transformed to the momentum space and
analyzed at a very small momentum transfer. The main properties of the C-even
and C-odd dipole densities in momentum space are obtained analytically. The
critical scaling dimension is found for the odderon and the universal
asymptotic behavior of the solutions is determined for small and large gluon
momenta. We find that the same saturation scale characterizes both the pomeron
and the odderon and both densities depend on the momentum only through the
geometric scaling variable. The absorptive effects are found to cause a strong
suppression of the odderon exchange amplitude for momenta below saturation
scale and only a moderate suppression for larger momenta.


title: Threshold resummed spectra in B ->Xu l nu decays in NLO (III)

abstract:
  We resum to next-to-leading order (NLO) the distribution in the light-cone
momentum p+ = EX - |pX| and the spectrum in the electron energy, in the
semileptonic decays B-> Xu l nu, where EX and pX are the total energy and
three-momentum of the final hadron state Xu respectively. By expanding our
formulas, we obtain the coefficients of all the infrared logarithms alpha^n L^k
at order alpha^2 and at order alpha^3, with the exception of the alpha^3 L
coefficient. We explicitly show that the relation between these semileptonic
spectra and the hadron mass distribution in the radiative decay B -> Xs gamma
is not a purely short distance one. By expanding our result for the p+
distribution and comparing it with the recent O(alpha^2 n_f) computation, we
obtain an explicit and non trivial verification of our resummation scheme at
the two-loop level. We also discuss the validity of the so-called
Brodsky-Lepage-Mackenzie (BLM) scheme in the evaluation of the semileptonic
spectra by comparing it with our results, finding that it is a reasonable
approximation for the leading terms only. Finally, we show that long-distance
phenomena, such as Fermi motion, are expected to have an effect on the electron
spectrum smaller than on the hadron mass distribution.


title:
Extension of the Color Glass Condensate Approach to Diffractive
  Reactions

abstract:
  We present an evolution equation for the Bjorken x dependence of diffractive
dissociation on hadrons and nuclei at high energies. We extend the formulation
of Kovchegov and Levin by relaxing the factorization assumption used there. The
formulation is based on a technique used by Weigert to describe interjet energy
flow. The method can be naturally extended to other exclusive observables.


title:
The puzzles in $B\to \pi\pi$ and $ \pi K$ decays: possible implications
  for R-parity violating supersymmetry

abstract:
  Recent experiments suggest that certain data of $B \to \pi\pi,\pi K$ decays
are inconsistent with the standard model expectations. We try to explain the
discrepancies with R-parity violating suppersymmetry. By employing the QCD
factorization approach, we study these decays in the minimal supersymmetric
standard model with R-parity violation. We show that R-parity violation can
resolve the discrepancies in both $B \to \pi\pi$ and $B \to \pi K$ decays, and
find that in some regions of parameter spaces all these requirements, including
the CP averaged branching ratios and the direct CP asymmetries, can be
satisfied. Furthermore, we have derived stringent bounds on relevant R-parity
violating couplings from the latest experimental data, and some of these
constraints are stronger than the existing bounds.


title: High-Order Corrections to the Lipatov Asymptotics in the \phi^4 Theory

abstract:
  High orders in perturbation theory can be calculated by the Lipatov method.
For most field theories, the Lipatov asymptotics has the functional form c a^N
\Gamma(N+b) (N is the order of perturbation theory); relative corrections to
this asymptotics have the form of a power series in 1/N. The coefficients of
high order terms of this series can be calculated using a procedure analogous
to the Lipatov approach and are determined by the second instanton in the
considered field theory. These coefficients are calculated quantitatively for
the n-component \phi^4 theory under the assumption that the second instanton is
(i) a combination of two elementary instantons and (ii) a spherically
asymmetric localized function. The technique of two-instanton calculations is
developed, as well as the method for integrating over rotations of an
asymmetric instanton in the coordinate state.

categories: hep-ph cond-mat.dis-nn cond-mat.stat-mech hep-th


title: Gravitino Dark Matter in the CMSSM With Improved Constraints from BBN

abstract:
  In the framework of the Constrained MSSM we re--examine the gravitino as the
lightest superpartner and a candidate for cold dark matter in the Universe.
Unlike in other recent studies, we include both a thermal contribution to its
relic population from scatterings in the plasma and a non--thermal one from
neutralino or stau decays after freeze--out. Relative to a previous analysis
[1] we update, extend and considerably improve our treatment of constraints
from observed light element abundances on additional energy released during BBN
in association with late gravitino production. Assuming the gravitino mass in
the GeV to TeV range, and for natural ranges of other supersymmetric
parameters, the neutralino region is excluded, while for smaller values of the
gravitino mass it becomes allowed again. The gravitino relic abundance is
consistent with observational constraints on cold dark matter from BBN and CMB
in some well defined domains of the stau region but, in most cases, only due to
a dominant contribution of the thermal population. This implies, depending on
the gravitino mass, a large enough reheating temperature. If $\mgravitino>1$
GeV then $T_R>10^7$ GeV, if allowed by BBN and other constraints but, for light
gravitinos, if $\mgravitino>100$ keV then $T_R>3\times 10^3$ GeV. On the other
hand, constraints mostly from BBN imply an upper bound $T_R \lsim {a few}x
10^8\times10^9$ GeV which appears inconsistent with thermal leptogenesis.
Finally, most of the preferred stau region corresponds to the physical vacuum
being a false vacuum. The scenario can be partially probed at the LHC.


title: Semi-superfluid strings in High Density QCD

abstract:
  We show that topological superfluid strings/vortices with flux tubes exist in
the color-flavor locked (CFL) phase of color superconductors. Using a
Ginzburg-Landau free energy we find the configurations of these strings. These
strings can form during the transition from the normal phase to the CFL phase
at the core of very dense stars. We discuss an interesting scenario for a
network of strings and its evolution at the core of dense stars.


title:
Identifying the contributions of Universal Extra Dimensions in the Higgs
  sector at linear e+ e- colliders

abstract:
  We study the dilepton-dijet signal in the dominant Higgs production channel
at a linear e+ e- collider. We estimate the effects of Universal Extra
Dimension (UED) by a simple analysis of the cross-sections. The heavy
Kaluza-Klein excitations of the Standard Model fields in UED can significantly
alter the decay properties of the Higgs boson to loop-driven final states. We
show that by taking a simple ratio between cross-sections of two different
final states this difference can be very easily highlighted.


title:
Constraining invisible neutrino decays with the cosmic microwave
  background

abstract:
  Precision measurements of the acoustic peaks of the cosmic microwave
background indicate that neutrinos must be freely streaming at the photon
decoupling epoch when T ~ 0.3 eV. This requirement implies restrictive limits
on ``secret neutrino interactions,'' notably on neutrino Yukawa couplings with
hypothetical low-mass (pseudo)scalars \phi. For diagonal couplings in the
neutrino mass basis we find g < 1 x 10^-7, comparable to limits from supernova
1987A. For the off-diagonal couplings and assuming hierarchical neutrino masses
we find g < 1 x 10^-11 (0.05 eV/m)^2 where m is the heavier mass of a given
neutrino pair connected by g. This stringent limit excludes that the flavor
content of high-energy neutrinos from cosmic-ray sources is modified by \nu ->
\nu' + \phi decays on their way to Earth.


title: Three-point Green Functions in the resonance region: LEC's

abstract:
  Using the 1/N_C expansion scheme and truncating the hadronic spectrum to the
lowest-lying multiplets of resonances we develop a procedure to implement QCD
information on the non-perturbative regime populated by resonances through the
use of three-point Green Functions of QCD currents. The process implies to
enforce on these functions the constraints provided by their asymptotic
behaviour ruled by QCD using their OPE or associated form factors. As a result
we are able to determine several couplings of the O(p^6) Chiral Perturbation
Theory Lagrangian and, in consequence, to address phenomenological issues such
as the SU(3) breaking in Kl3 decays.


title: R-parity violation assisted thermal leptogenesis in the seesaw mechanism

abstract:
  Successful leptogenesis within the simplest type I supersymmetric seesaw
mechanism requires the lightest of the three right-handed neutrino
supermultiplets to be heavier than $\sim10^9$ GeV. Thermal production of such
(s)neutrinos requires very high reheating temperatures which result in an
overproduction of gravitinos with catastrophic consequences for the evolution
of the universe. In this letter, we let R-parity be violated through a
$\lambda_i \hat{N}_i \hat{H}_u \hat{H}_d$ term in the superpotential, where
$\hat{N}_i$ are right-handed neutrino supermultiplets. We show that in the
presence of this term, the produced lepton-antilepton asymmetry can be
enhanced. As a result, even for $\hat{N}_1$ masses as low as $10^6$ GeV or
less, we can obtain the observed baryon asymmetry of the universe without
gravitino overproduction.


title:
Axial-vector form factors of the nucleon within the chiral quark-soliton
  model and their strange components

abstract:
  We investigate three different axial-vector form factors of the nucleon,
$G_A^{0}$, $G_A^3$, $G_A^8$, within the framework of the SU(3) chiral
quark-soliton model, emphasizing their strangeness content. We take into
account the rotational $1/N_c$ and linear strange quark ($m_s$) contributions
using the symmetry-conserving SU(3) quantization and assuming isospin symmetry.
The strange axial-vector form factor is also obtained and they all are
discussed in the context of the parity-violating scattering of polarized
electrons off the nucleon and its relevance to the strange vector form factors.


title:
The Van der Waals interactions and the photoelectric effect in
  noncommutative quantum mechanics

abstract:
  We calculate the long-range Vanderwaals force and the photoelectric cross
section in a \nc set up. While we argue that non-commutativity effects could
not be discerned for the Vanderwaals interactions, the result for the
photoelectric effect shows deviation from the usual commutative one, which in
principle can be used to put bounds on the space-space non-commutativity
parameter.


title: Elastic and Iclusive Inelastic Diffraction of High Energy Hadrons

abstract:
  We consider a multi-channel correction accounting for intermediate
transitions inside an equivalence class of diffractive states. Our formalism of
'diffractive limit' provides an excellent description of elastic and inclusive
inelastic scattering of high energy (53 - 546 GeV) protons and antiprotons.


title: Comments on the large Nc behavior of light scalars

abstract:
  I review the large Nc behavior of light resonances generated from unitarized
one-loop Chiral Perturbation Theory. In contrast with the rho or K*, the scalar
behavior is at odds with a qqbar "dominant component". In fact, in the light
scalar region, meson-meson amplitudes vanish as Nc increases. Also, the scalar
widths, obtained from their associated poles, behave as
O(Nc^{1/2})<Gamma<O(Nc). We also clarify on the physical relevance of
considering large Nc not too far from real life, Nc=3, and the interpretation
of the mathematical Nc=infinity limit.


title:
Dark matter and leptogenesis in gauged B-L symmetric models embedding
  $\nu$ MSM

abstract:
  We study the phenomenon of baryogenesis via leptogenesis in the gauged $B-L$
symmetric models by embedding the currently proposed model $\nu MSM$. It is
shown that the lightest right handed neutrino of mass $100 GeV$ satisfy the
leptogenesis constraint and at the same time representing a candidate for the
cold dark matter. We discuss our results in parallel to the predictions of $\nu
MSM$.


title: Random Matrices

abstract:
  We review elementary properties of random matrices and discuss widely used
mathematical methods for both hermitian and nonhermitian random matrix
ensembles. Applications to a wide range of physics problems are summarized.
This paper originally appeared as an article in the Wiley Encyclopedia of
Electrical and Electronics Engineering.


title: Model study of generalized parton distributions with helicity flip

abstract:
  Generalized parton distributions with helicity flip are studied in the quark
sector, within a simple version of the MIT bag model, assuming an SU(6) wave
function for the proton target. In the framework under scrutiny it turns out
that only the generalized transversity distribution, H_T^q, is non vanishing.
For this quantity, the forward limit is properly recovered and numerical
results are found to underestimate recent lattice data for its first moment.
Positivity bounds recently proposed are fulfilled by the obtained distribution.
The relevance of the analysis for the planning of measurements of the quark
generalized transversity is addressed.


title:
Two-photon decays of rho and omega mesons and strong decays rho -> eta
  pi and omega -> pi pi in dense matter

abstract:
  Two-photon decays of rho and omega mesons and strong decays rho -> eta pi and
omega -> pi pi are described in the quark Nambu-Jona-Lasinio(NJL) model in
dense medium. Decays of rho-meson are especially interesting because they
contain intermediate a_0-meson which became a sharp resonance in the vicinity
of phase transition of hadron matter into quark-gluon plasma. This leads to
increasing rho decay width and, as a result, two-photon decay of rho-meson in
medium became comparable with two-photon decays of scalar and pseudoscalar
mesons in vacuum. Similar effect take place in the strong decay rho -> eta pi.


title: Hard-loop dynamics of non-abelian plasma instabilities

abstract:
  I discuss recent advances in the understanding of non-equilibrium gauge field
dynamics in plasmas which have particle distributions which are locally
anisotropic in momentum space. In contrast to locally isotropic plasmas such
anisotropic plasmas have a spectrum of soft unstable modes which are
characterized by exponential growth of transverse (chromo)-magnetic fields at
short times. The long-time behavior of such instabilities depends on whether or
not the gauge group is abelian or non-abelian. Here I will report on recent
numerical simulations which attempt to determine the long-time behavior of an
anisotropic non-abelian plasma within hard-loop effective theory.


title: From Tree Unitarity to Top Quark Physics in 5D Higgsless Models

abstract:
  In five dimensional models of Higgsless electroweak symmetry breaking, tree
level unitarity in gauge boson scattering is restored by the exchange of gauge
boson Kaluza-Klein modes instead of a Higgs boson. Unitarity of scattering
amplitudes involving top quarks requires also the Kaluza-Klein modes of the
third family quarks. It is shown that the relevant unitarity cancellations are
consistent with gauge symmetry breaking by boundary conditions. These results
are used to constrain the couplings of the top quark to Kaluza-Klein modes and
the implications for collider phenomenology are discussed.


title: Hard pomeron contribution to forward elastic scattering

abstract:
  The introduction of a hard singularity in fits to total cross sections and to
the ratio of real to imaginary parts enables to reproduce perfectly the data
for sqrt(s)< 100 GeV using only simple-pole parametrisations, both for the soft
and for the hard pomerons.


title: QCD and Hard Diffraction at the LHC

abstract:
  As an introduction to QCD at the LHC I give an overview of QCD at the
Tevatron, emphasizing the high Q^2 frontier which will be taken over by the
LHC. After describing briefly the LHC detectors I discuss high mass
diffraction, in particular central exclusive production of Higgs and vector
boson pairs. I introduce the FP420 project to measure the scattered protons
420m downstream of ATLAS and CMS.


title: Detecting solar axions using Earth's magnetic field

abstract:
  We show that solar axion conversion to photons in the Earth's magnetosphere
can produce an x-ray flux, with average energy \sim 4 keV, which is measurable
on the dark side of the Earth. The smallness of the Earth's magnetic field is
compensated by a large magnetized volume. For axion masses < 10^{-4} eV, a
low-Earth-orbit x-ray detector with an effective area of 10^4 cm^2, pointed at
the solar core, can probe the photon-axion coupling down to 10^{-11} GeV^{-1},
in one year. Thus, the sensitivity of this new approach will be an order of
magnitude beyond current laboratory limits.


title: Threshold Resummation for Higgs Production in Effective Field Theory

abstract:
  We present an effective field theory to resum the large double logarithms
originated from soft-gluon radiations at small final-state hadron invariant
masses in Higgs and vector boson (\gamma^*, $W$ and $Z$) production at hadron
colliders. The approach is conceptually simple, indepaendent of details of an
effective field theory formulation, and valid to all orders in sub-leading
logarithms. As an example, we show the result of summing the
next-to-next-to-next leading logarithms is identical to that of standard pQCD
factorization method.


title: Example of a Hidden Flavor Sector

abstract:
  We exemplify earlier general considerations on flavor symmetry breaking
employing a hidden sector and exploiting supersymmetry in a specific model. The
model is at best a caricature of reality, but it is sufficient to display
mechanisms for the natural emergence of minimal low-energy Higgs structure,
non-trivial texture zeros and symmetry, and coupling to the standard model only
through Higgs fields, which could be considerably more general.


title: Equation of State of Gluon Plasma from Gribov Region

abstract:
  We describe the gluon plasma in zeroth order as a gas of free quasi-particles
with a temperature-independent dispersion relation of Gribov type, $E(k) =
\sqrt{k^2 + {M^4 \over k^2}}$, that results from the restriction of the
physical state space to the Gribov region. The effective mass ${M^2 \over k}$
controls infrared divergences of finite-temperature perturbation theory. The
equation of state of this gas is calculated and compared with numerical lattice
data. At high temperature $T$ there are power corrections to the
Stefan-Boltzmann law that are of relative order $1/T^3$ for pressure and
$1/T^4$ for energy.


title: Hadronic B decays with QCD factorization

abstract:
  A brief summary of outstanding theoretical issues and recent results from the
QCD factorization approach to exclusive hadronic B decays is provided.


title:
MSSM Higgs-boson mass predictions and two-loop non-supersymmetric
  counterterms

abstract:
  The evaluation of Yukawa-enhanced two-loop contributions to the MSSM
Higgs-boson mass is considered. We prove the common assumption that
regularization by dimensional reduction preserves supersymmetry at the required
level. Thus generating counterterms by multiplicative renormalization is
correct. Technically, we identify a suitable Slavnov-Taylor identity, use a
recently developed method to evaluate it at the two-loop level, and show that
it is valid in dimensional reduction.


title: Duality in Left-Right Symmetric Seesaw Mechanism

abstract:
  We consider type I+II seesaw mechanism, where the exchanges of both
right-handed neutrinos and isotriplet Higgs bosons contribute to the neutrino
mass. Working in the left-right symmetric framework and assuming the mass
matrix of light neutrinos $m_\nu$ and the Dirac-type Yukawa couplings to be
known, we find the triplet Yukawa coupling matrix $f$, which carries the
information about the masses and mixing of the right-handed neutrinos. We show
that in this case there exists a duality: for any solution $f$, there is a dual
solution $\hat{f}=m_\nu/v_L-f$, where $v_L$ is the VEV of the triplet Higgs.
Thus, unlike in pure type I (II) seesaw, there is no unique allowed structure
for the matrix $f$. For $n$ lepton generations the number of solutions is
$2^n$. We develop an exact analytic method of solving the seesaw non-linear
matrix equation for $f$.


title: Gamma-Ray Excess from the Galactic Center and Supergravity Models

abstract:
  We analyse the effect of the compression of the dark matter due to the infall
of baryons to the galactic center on the gamma-ray flux. In addition, we also
consider the effect of non-universal supersymmetric soft terms. This analysis
shows that neutralino dark matter
  annihilation can give rise to signals largely reachable by
  future experiments like GLAST. This is a remarkable result if we realise that
direct detection experiments will only be able to cover a small region of the
parameter space.
  Actually, in this SUGRA framework we have also been able to
  fit present excess from EGRET and CANGAROO using different
  non-universal scenarios,
  and even fit the data from both experiments with only one scenario.
  We have also studied the recent HESS data implying a neutralino
  heavier than 12 TeV. Because of such a heavy neutralino,
  it is not natural to find solutions in the SUGRA framework.
  Nevertheless we have carried out a quite model-independent
  analysis, and found the conditions required on the particle physics
  side to fit the HESS data thanks to dark matter annihilation.


title:
Hadronic decays of the tau lepton: tau -> (3 pion) nu_tau within
  Resonance Chiral Theory

abstract:
  Tau decays into hadrons foresee the study of the hadronization of vector and
axial-vector QCD currents, yielding relevant information on the dynamics of the
resonances entering into the processes. We analyse tau -> (3 pion) nu_tau
decays within the framework of the Resonance Chiral Theory, comparing this
theoretical scheme with the experimental data, namely ALEPH spectral function
and branching ratio. Hence we get values for the mass and on-shell width of the
a_1(1260) resonance, and provide the structure functions that have been
measured by OPAL and CLEO-II.


title:
Higgs-mass dependence of the effective electroweak mixing angle
  $\sin^2\theta_{eff}$ at the two-loop level

abstract:
  The result for the Higgs-dependent electroweak two-loop bosonic contributions
to the effective leptonic mixing angle of the $Z$-boson in the Standard Model
is presented. Together with the previously calculated fermionic contributions
it yields the complete dependence of $\sin^2\theta_{\rm eff}$ on the
Higgs-boson mass $M_H$. Compared to the fermionic contributions, the bosonic
contributions are found to be smaller and have the opposite sign, compensating
part of the fermionic contributions.


title: $D_s$ Asymmetry in Photoproduction

abstract:
  By adopting two models of strange and antistrange quark distributions inside
nucleon, the light-cone meson-baryon fluctuation model and the effective chiral
quark model, we calculate the $D_s^+ - D_s^-$ asymmetry in photoproduction in
the framework of heavy-quark recombination mechanism. We find that the effect
of asymmetry of strange sea to the $D_s$ asymmetry is considerable and
depending on the different models. Therefore, we expect that with the further
study in electroproduction, e.g. at HERA and CEBAF, the experimental
measurements on the $D_s^+ - D_s^-$ asymmetry may impose a strong restriction
on the strange-antistrange distribution asymmetry models.


title: The role of quark mass in cold and dense pQCD and quark stars

abstract:
  For almost twenty years the effects of a nonzero strange quark mass on the
equation of state of cold and dense QCD were considered to be negligible,
thereby yielding only minor corrections to the mass-radius diagram of compact
stars. By computing the thermodynamic potential to first order in \alpha_s, and
including the effects of the renormalization group running of the coupling and
strange quark mass, we show that corrections can be of the order of 25%, and
dramatically affect the structure of compact stars.


title: Scalar glueball production in $J/\psi$ hadronic decays

abstract:
  The recent data for $J/\psi$ hadronic decays from BES raise ``puzzles" about
the scalar meson properties, which are different from the naive OZI rule
expectation. In this work, we study the implications of a glueball-$Q\bar{Q}$
mixing scheme in the scalar meson productions in $J/\psi$ hadronic decays. We
show that the significant OZI violations in $J/\psi\to V f_0^i$ ($i=1,2,3$
correspond to $f_0(1710)$, $f_0(1500)$ and $f_0(1370)$, respectively) are
consistent with the requirement of strong glueball-$Q\bar{Q}$ mixings within
the scalar meson wavefunctions.


title: Hadrons Above T_c

abstract:
  Hadronic modes in the quark-gluon plasma and their spectral properties are
discussed on the basis of the lattice QCD data.


title:
Density dependence of quark masses and stability of color-flavor locked
  phases

abstract:
  Considering the density dependence of quark masses, we investigate the
color-flavor-locked matter and its stability relative to the ( unpaired )
strange quark matter. We find that, when the current mass of strange quark
$m_s$ is small, the strange quark matter remains stable for the moderate baryon
densities. When $m_s$ is large, the gapless phase of the color-flavor-locked
matter is found to be difficult to be stable. A schematic phase diagram of
three-flavor quark matter is presented, in which the color-flavor-locked phase
region is suppressed in comparison with the previous results.


title:
Elastic Meson-Nucleon and Nucleon-Nucleon Scattering: Models vs. All
  Available Data

abstract:
  We consider simple-pole descriptions of soft elastic scattering at small $t$
and $s$, and allow for the presence of a hard pomeron. We have built and
analyzed an exhaustive dataset and we show that simple poles provide an
excellent description of the data in the region $- 0.5$ GeV$^2 < t <$ $- 0.1$
GeV$^2$, 6 GeV$<\sqrt{s}<$63 GeV. We show that new form factors have to be
used, and get information on the trajectories of the soft and hard pomerons.


title: ILC Cosmology

abstract:
  Recent breakthroughs in cosmology pose questions that require particle
physics answers. I review the problems of dark matter, baryogenesis, and dark
energy and discuss how particle colliders, particularly the International
Linear Collider, may advance our understanding of the contents and evolution of
the Universe.


title: Scattering of Quark-Quasiparticles in the Quark-Gluon Plasma

abstract:
  Employing a Brueckner-type many-body approach, based on a driving potential
extracted from lattice QCD, we study light quark properties in a Quark-Gluon
Plasma (QGP) at moderate temperatures, $T\simeq$~1-2~$T_c$. The quark-antiquark
$T$-matrix is calculated self-consistently with pertinent quark self-energies.
While the repulsive octet channel induces quasiparticle masses of up to
150~MeV, the attractive color-singlet part exhibits resonance structures which
lead to quasiparticle widths of $\sim$200~MeV.


title: Double protection of the Higgs potential

abstract:
  A mechanism of double protection of the Higgs potential, by supersymmetry and
by a global symmetry, is investigated in a class of supersymmetric models with
the SU(3)xSU(3)xU(1) gauge symmetry. In such models the electroweak symmetry
can be broken with no fine-tuning at all.


title: Transversity Properties of Quarks and Hadrons in SIDIS and Drell-Yan

abstract:
  We consider the leading twist $T$-odd contributions as the dominant source of
the azimuthal and transverse single spin asymmetries in SIDIS and dilepton
production in Drell-Yan Scattering. These asymmetries contain information on
the distribution of quark transverse spin in (un)polarized protons. In the
spectator framework we estimate these asymmetries at HERMES kinematics and at
$50\ {\rm GeV}$ for the proposed experiments at GSI, where an anti-proton beam
is ideal for studying the transversity properties of quarks due to the
dominance of {\em valence} quark effects.


title: Doubly Heavy Baryons, Heavy Quark-DiQuark Symmetry and NRQCD

abstract:
  In the heavy quark limit, properties of heavy mesons and doubly heavy baryons
are related by heavy quark-diquark symmetry. This problem is reanalyzed in the
framework of Non-Relativistic QCD (NRQCD). We introduce a novel method for
deriving Potential NRQCD (pNRQCD) Lagrangians for composite fields from vNRQCD,
which contains quarks and antiquarks as explicit degrees of freedom and
maintains manifest power counting in the velocity via a label formalism. A
Hubbard-Stratonovich transformation is used to eliminate four quark
interactions in vNRQCD and then quarks and antiquarks are integrated out to get
effective Lagrangians for composite fields. This method is used to rederive
Lagrangians for the Q\bar Q and QQ sectors of pNRQCD and give a correct
derivation of the O(1/m_Q) prediction for the hyperfine splitting of doubly
heavy baryons.


title:
Evidence for the Onset of Deconfinement from Longitudinal Momentum
  Distributions? Observation of the Softest Point of the Equation of State

abstract:
  We analyze longitudinal pion spectra from E_lab= 2AGeV to \sqrt s_NN=200GeV
within Landau's hydrodynamical model. From the measured data on the widths of
the pion rapidity spectra, we extract the sound velocity c_s in the early stage
of the reactions. It is found that the sound velocity has a local minimum
(indicating a softest point in the equation of state, EoS) at E_beam=30AGeV.
This softening of the EoS is compatible with the assumption of the formation of
a mixed phase at the onset of deconfinement.


title:
Weak radiative corrections to the Drell-Yan process for large invariant
  mass of a dilepton pair

abstract:
  The weak radiative corrections to the Drell-Yan process above the Z-peak have
been studied. The compact asymptotic expression for the two heavy boson
exchange - one of the significant contributions to the investigated process -
has been obtained, the results expand in the powers of the Sudakov electroweak
logarithms. At the quark level we compare the weak radiative corrections to the
total cross section and forward-backward asymmetry with the existing results
and achieve a rather good coincidence at \sqrt{s}>= 0.5 TeV. The numerical
analysis has been performed in the high energy region corresponding to the
future experiments at the CERN Large Hadron Collider (LHC). To simulate the
detector acceptance we used the standard CMS detector cuts. It was shown that
double Sudakov logarithms of the WW boxes are the dominant contributions in
hadronic cross section. The considered radiative corrections are significant at
high dilepton mass M and change the dilepton mass distribution up to ~+3(-12)%
at the LHC energies and M=1(5) TeV.


title: Hadron Tomography

abstract:
  Generalized parton distributions can be used to obtain information about the
dependence of parton distributions on the impact parameter. Potential
consequences for T-odd single-spin asymmetries are discussed.


title:
Paramagnetic Meissner Effect and Finite Spin Susceptibility in an
  Asymmetric Superconductor

abstract:
  A general analysis of Meissner effect and spin susceptibility of a uniform
superconductor in an asymmetric two-component fermion system is presented in
nonrelativistic field theory approach. We found that, the pairing mechanism
dominates the magnetization property of superconductivity, and the asymmetry
enhances the paramagnetism of the system. At the turning point from BCS to
breached pairing superconductivity, the Meissner mass squared and spin
susceptibility are divergent at zero temperature. In the breached pairing state
induced by chemical potential difference and mass difference between the two
kinds of fermions, the system goes from paramagnetism to diamagnetism, when the
mass ratio of the two species increases.

categories: hep-ph astro-ph cond-mat.supr-con nucl-th quant-ph


title:
Dynamical study of $\gamma^*N \leftrightarrow \Delta$ transition with
  $N(e,e'p)\pi$

abstract:
  The Dubna-Mainz-Taipei (DMT) dynamical model for pion electromagnetic
production, which describe well the existing data from threshold up to 1 GeV
photon lab energy is presented and used to analyze recent data in the $\Delta$
region . We find that within DMT model, the bare $\Delta$ is almost spherical
while the physical $\Delta$ is oblate. The deformation is almost saturated by
the pion cloud effects.


title: Vector Manifestation and the Hidden Local Symmetry

abstract:
  In this write-up, I summarize the key ingredients of the vector manifestaion
formulated in the hidden local symmetry theory, in which the $\rho$ meson
becomes massless degenerated with the pion at the chiral phase transition
point.


title: Bose-Einstein correlations from "within"

abstract:
  We describe an attempt to model numerically Bose-Einstein correlations (BEC)
from "within", i.e., by using them as the most fundamental ingredient of some
Monte Carlo event generator (MC) rather than considering them as a kind of
(more or less important, depending on the actual situation) "afterburner",
which inevitably changes original physical content of the MC code used to model
multiparticle production process.


title: Gravitational decay of the Z-boson

abstract:
  We study the decay process of the Z boson to a photon and a graviton. The
most general form of the on-shell amplitude, subject to the constraints due to
the conservation of the electromagnetic and the energy-momentum tensor, is
determined. The amplitude is expressed in terms of three form factors, two of
which are CP-odd while one is CP-even. The latter, which is the only non-zero
form factor at the one-loop level, is computed in the standard model and the
decay rate is determined.


title: Measurements of New Physics in B -> pi pi Decays

abstract:
  If new physics (NP) is present in B -> pi pi decays, it can affect the
isospin I=2 or I=0 channels. In this paper, we discuss various methods for
detecting and measuring this NP. The techniques have increasing amounts of
theoretical hadronic input. If NP is eventually detected in B -> pi pi -- there
is no evidence for it at present -- one will be able to distinguish I=2 and
I=0, and measure its parameters, using these methods.


title:
Suppression of $\pi^0$ production at large $p_\perp$ in central $Au +Au$
  collisions at $\sqrt{s_{NN}} = 200$ GeV and quark-gluon plasma

abstract:
  We investigate the suppression of $\pi^0$-spectrum in a wide range of
$p_\perp$ up 60 GeV/c which is caused by the energy loss of the gluon and quark
jets in quark-gluon plasma. The physical characteristics of initial and mixed
phases were found in the effective quasiparticle model by analogy with previous
work \cite{5}. The PHENIX data up 10 GeV/c within the limits of precision are
described by quasiparticle model with decrease of the thermal gluon mass and
effective coupling in the region of phase transitin (at $T\to T_c$ from above).
We also take into account the intrinsic transverse momentum $k_\perp$ of
partons.
  The suppression factor $R_{AA}(p_\perp)$ shows the weak rise with increase of
$p_\perp$ above 4 GeV/c, then it reaches smooth maximum at $p_\perp \sim 20$
GeV/c and then decrease at $p_\perp\sim 60$ GeV/c again to value $R_{AA}$ at
$p_\perp\simeq$ 4 GeV/c. The factor $R_{AA}$ in this range of $p_\perp$ is
changihg weakly if intrinsic momentum $k_\perp$ is taken into account.


title:
Thermalization of gluons at RHIC including gg <-> ggg interactions in a
  parton cascade

abstract:
  Employing a newly developed pQCD inspired parton cascade we simulate the
space time evolution of gluons which are produced initially in a heavy ion
collision at RHIC energy. The inelastic $gg \leftrightarrow ggg$ interactions
are for the first time implemented obeying full detailed balance. The numerical
results show that thermalization of gluons is mainly driven by the inelastic
gluonic interactions and reaches equilibrium at $1\sim 2$ fm/c. In simulations
for noncentral collisions considerable partonic elliptic flow $v_2$ is
generated being comparable with the experimental data.


title: A new search strategy for the Higgs boson

abstract:
  We propose a novel mechanism for exclusive diffractive Higgs production $pp
\to Hpp$, in which the Higgs carries a significant fraction of the projectile
proton's momentum. This mechanism will then provide a clear experimental signal
for Higgs production, due to the small background in this kinematic region. The
key assumption underlying our analysis is the presence of intrinsic charm (IC)
and intrinsic bottom (IB) fluctuations in the proton bound state, whose
existence, at high light-cone momentum fraction $x$, has a substantial and
growing experimental and theoretical support.


title: Varying Alpha Monopoles

abstract:
  We study static magnetic monopoles in the context of varying alpha theories
and show that there is a group of models for which the t'Hooft-Polyakov
solution is still valid. Nevertheless, in general static magnetic monopole
solutions in varying alpha theories depart from the classical t'Hooft-Polyakov
solution with the electromagnetic energy concentrated inside the core seeding
spatial variations of the fine structure constant. We show that Equivalence
Principle constraints impose tight limits on the allowed variations of alpha
induced by magnetic monopoles which confirms the difficulty to generate
significant large-scale spatial variation of the fine structure constant found
in previous works. This is true even in the most favorable case where magnetic
monopoles are the source for these variations.


title: Review of Heavy Hadron Spectroscopy

abstract: The status of some of the recently discovered heavy hadrons is presented.


title:
Summing next-to-next-to-leading logarithms in b->c transitions at zero
  recoil

abstract:
  Perturbative corrections to b->c transitions at zero recoil are considered in
the two-step matching scheme. The matching coefficient for the b->c currents
from the intermediate effective theory (between the scales m_b and m_c) to the
low-energy effective theory (scales below m_c) has been found with two-loop
accuracy. The next-to-next-to-leading logarithms has been summed in the leading
order in m_c/m_b. Higher-order corrections are estimated in the large-beta_0
limit.


title: Testing Lorentz Invariance using Zeeman Transitions in Atomic Fountains

abstract:
  Lorentz Invariance (LI) is the founding postulate of Einstein's 1905 theory
of relativity, and therefore at the heart of all accepted theories of physics.
It characterizes the invariance of the laws of physics in inertial frames under
changes of velocity or orientation. This central role, and indications from
unification theories hinting toward a possible LI violation, have motivated
tremendous experimental efforts to test LI. A comprehensive theoretical
framework to describe violations of LI has been developed over the last decade:
the Lorentz violating Standard Model Extension (SME). It allows a
characterization of LI violations in all fields of present day physics using a
large (but finite) set of parameters which are all zero when LI is satisfied.
All classical tests (e.g. Michelson-Morley or Kennedy-Thorndike experiments)
can be analyzed in the SME, but it also allows the conception of new types of
experiments, not thought of previously. We have carried out such a conceptually
new LI test, by comparing particular atomic transitions (particular
orientations of the involved nuclear spins) in the $^{133}$Cs atom using a cold
atomic fountain clock. This allows us to test LI in a previously largely
unexplored region of the SME parameter space, corresponding to first
measurements of four proton parameters and an improvement by 11 and 12 orders
of magnitude on the determination of four others. In spite of the attained
accuracies, and of having extended the search into a new region of the SME, we
still find no indication of LI violation.


title: Evolution Equation for Generalized Parton Distributions

abstract:
  The extension of the method [arXiv:hep-ph/0503109] for solving the leading
order evolution equation for Generalized Parton Distributions (GPDs) is
presented. We obtain the solution of the evolution equation both for the flavor
nonsinglet quark GPD and singlet quark and gluon GPDs. The properties of the
solution and, in particular, the asymptotic form of GPDs in the small x and \xi
region are discussed.


title: On the Higgs Mass in the CMSSM

abstract:
  We estimate the mass of the lightest neutral Higgs boson h in the minimal
supersymmetric extension of the Standard Model with universal soft
supersymmetry-breaking masses (CMSSM), subject to the available accelerator and
astrophysical constraints. For m_t = 174.3 GeV, we find that 114 GeV < m_h <
127 GeV and a peak in the tan beta distribution simeq 55. We observe two
distinct peaks in the distribution of m_h values, corresponding to two
different regions of the CMSSM parameter space. Values of m_h < 119 GeV
correspond to small values of the gaugino mass m_{1/2} and the soft trilinear
supersymmetry-breaking parameter A_0, lying along coannihilation strips, and
most of the allowed parameter sets are consistent with a supersymmetric
interpretation of the possibly discrepancy in g_mu - 2. On the other hand,
values of m_h > 119 GeV may correspond to much larger values of m_{1/2} and
A_0, lying in rapid-annihilation funnels. The favoured ranges of m_h vary with
m_t, the two peaks being more clearly separated for m_t = 178 GeV and merging
for m_t = 172.7 GeV. If the g_mu - 2 constraint is imposed, the mode of the m_h
distribution is quite stable, being sim 117 GeV for all the studied values of
m_t.


title: Hadronic Physics and Exotics

abstract:
  I report on the state of hadronic physics and spectroscopy as reflected in
contributions to the HEP2005 Europhysics Conference. Topics of interest include
lattice field theory calculations of the hadron spectrum, the continuing quest
to account for the proton's spin, pentaquarks, high-statistics Dalitz-plot
analyses, excited charmed--strange mesons, quarkonium spectroscopy, and the new
levels associated with the charmonium spectrum. I also reflect on the goals of
hadronic physics and assess the current state of the art.


title: The kaon electromagnetic form factor

abstract:
  We use recent data on K^+ -> pi^+ e^+ e^-, together with known values for the
pion form factor, to derive experimental values for the kaon electromagnetic
form factor for 0 < q^2 < 0.125 (GeV/c)^2. The results are then compared with
the predictions of the Vector Meson Dominance model, which gives a good fit to
the experimental results.


title:
Neutral Larkin--Ovchinnikov--Fulde--Ferrell state and chromomagnetic
  instability in two-flavor dense QCD

abstract:
  In two-flavor dense quark matter, we describe the dynamics in the single
plane wave Larkin--Ovchinnikov--Fulde--Ferrell (LOFF) state satisfying the
color and electric neutrality conditions. We find that because the neutral LOFF
state itself suffers from a chromomagnetic instability in the whole region
where it coexists with the (gapped/gapless) two-flavor superconducting
(2SC/g2SC) phases, it cannot cure this instability in those phases. This is
unlike the recently revealed gluonic phase which seems to be able to resolve
this problem.


title:
J/Psi and Psi' Polarizations in Polarized Proton-Proton Collisions at
  the RHIC

abstract:
  We study inclusive heavy quarkonium production with definite polarizations in
polarized proton-proton collisions using the non-relativistic QCD color-octet
mechanism. We present results for rapidity distributions of cross sections and
spin asymmetries for the production of J/psi and psi' with specific
polarizations in polarized p-p collisions at \sqrt s = 200 GeV and 500 GeV at
the RHIC within the PHENIX detector acceptance range.


title:
On the study of the QCD string model and its application to meson
  spectroscopy

abstract:
  The meson spectroscopy is studied in the framework of the QCD string model.
The mesons are composed of spinless quarks which move relativistically. We show
that the QCD string model reproduces the straight line Regge trajectories and
exibit the correct string slopes for both light-light and heavy-light mesons.
We also present the exact numerical solution and the analytic approximation
solution of the QCD string equations for the light-light mesons under the deep
radial limit. We demonstrate that the QCD string model describes the universal
relations for the light-light and heavy-light meson spectroscopies correctly
from the comparison of the exact numerical solutions of the QCD string model
for both light-light and heavy-light mesons.


title: Light-Cone Distribution Amplitudes for the Light $1^1P_1$ Mesons

abstract:
  We present a study of light-cone distribution amplitudes of the light
$1^1P_1$ mesons. The first few Gegenbauer moments of leading twist light-cone
distribution amplitudes are calculated by using the QCD sum rule technique.


title:
Photon $+$ Hadron Production in High Energy Deuteron (Proton)-Nucleus
  Collisions

abstract:
  We apply the Color Glass Condensate formalism to photon $+$ hadron production
cross section in high energy deuteron (proton)-gold collisions at RHIC. We
investigate the dependence of the production cross section on the angle between
the produced hadron and photon for various rapidities and transverse momenta.
It is shown that the angular correlation between the produced hadron and photon
is a sensitive probe of the saturation dynamics.


title:
Nonlinear dynamics of soft fermion excitations in hot QCD plasma I:
  soft-quark - soft-gluon scattering

abstract:
  Within the framework of the hard thermal loop effective theory we derive a
system of Boltzmann-like kinetic equations taking into account the simplest
processes of nonlinear interaction of soft fermionic and bosonic QCD plasma
excitations: elastic scattering of soft-(anti)quark excitations off soft-gluon
and soft-quark excitations, pair production of soft quark-antiquark
excitations, annihilation into two soft-gluon excitations. The matrix elements
of these processes to leading order in the coupling constant $g$ are obtained.
The iterative method of calculation of the matrix elements for the higher
processes of soft-mode interactions is proposed. The most general expression
for the emitted radiant power induced by the effective currents and effective
sources in a quark-gluon plasma (QGP) taking into account an existence of
fermion sector of plasma excitations is defined. The explicit form of the
linearized Boltzmann equation accounting for scattering of color(less)
plasminos off color(less) plasmons is written out.


title:
A correct renormalization procedure for the electroweak chiral
  Lagrangian

abstract:
  We perform a systematic one-loop renormalization to the standard model with a
nonlinearly realized Higgs boson field and the electroweak chiral Lagrangian up
to $O(p^2)$ order. We find even in the nonlinear form, the Higgs model of the
standard model is renormalizable in our procedure. We also examine $\beta$
functions of gauge couplings for the standard model and $\beta$ functions for
anomalous couplings in the electroweak chiral Lagrangian up to $O(p^2)$ order,
and find our results agree with all well-known results. Based on these
observations, we conclude that our calculation procedure could be a correct one
to systematically construct the divergences of the electroweak chiral
Lagrangian when $O(p^4)$ operators are included.


title: QCD Corrections to Static Heavy Quark Form Factors

abstract:
  Interactions of heavy quarks, in particular of top quarks, with electroweak
gauge bosons are expected to be very sensitive to new physics effects related
to electroweak symmetry breaking. These interactions are described by the
so-called static form factors, which include anomalous magnetic moments and the
effective weak charges. We compute the second-order QCD corrections to these
static form factors, which turn out to be sizeable and need to be taken into
account in searches for new anomalous coupling effects.


title: Proposition of numerical modelling of BEC

abstract:
  We propose extension of the numerical method to model effect of Bose-Einstein
correlations (BEC) observed in hadronization processes which allows for
calculations not only correlation functions $C_2(Q_{inv})$ (one-dimensional)
but also corresponding to them $C_2(Q_{x,y,z})$ (i.e., three-dimensional). The
method is based on the bunching of identical bosonic particles in elementary
emitting cells (EEC) in phase space in manner leading to proper Bose-Einstein
form of distribution of energy (this was enough to calculate $C_2(Q_{inv})$).
To obtain also $C_2(Q_{x,y,z})$ one has to add to it also symmetrization of the
multiparticle wave function to properly correlate space-time locations of
produced particles with their energy-momentum characteristics.


title:
Quark-antiquark production from classical fields and chemical
  equilibration

abstract:
  We compute by numerical integration of the Dirac equation the number of
quark-antiquark pairs produced in the classical color fields of colliding
ultrarelativistic nuclei. The backreaction of the created pairs on the color
fields is not taken into account. While the number of qqbar pairs is
parametrically suppressed in the coupling constant, we find that in this
classical field model it could even be compatible with the thermal ratio to the
number of gluons. After isotropization one could thus have quark-gluon plasma
in chemical equilibrium.


title: Jet multiplicities as the QGP thermometer

abstract:
  It is proposed to use the energy behavior of mean multiplicities of jets
propagating in a nuclear medium as the thermometer of this medium during the
collision phases. The qualitative effects are demonstrated in the framework of
the fixed coupling QCD with account of jet quenching.


title:
Higher twist distribution amplitudes of the pion and electromagnetic
  form factor $F_{\pi}(Q^2)$

abstract:
  The pion electromagnetic form factor is calculated within the QCD light-cone
sum rule method and using a renormalon model for the higher twist distribution
amplitudes (DAs). The theoretical predictions are compared with the
experimental data and constraints on the pion leading and twist-4 DAs are
extracted. An upper bound on the twist-4 contribution to the form factor and
estimates of effects due to higher conformal spins in the pion twist-4 DAs are
obtained.


title:
Charged Kaon K^+ --> 3 pi CP Violating Asymmetries vs epsilon'_K /
  epsilon_K

abstract:
  We present the next-to-leading order full results in Chiral Perturbation
Theory for the charged Kaon K --> 3 pi slope g CP violating asymmetries. We
discuss the constraints that a measurement of these asymmetries would impose on
the Standard Model results of epsilon_K' and search for new physics. We also
study the kind of information that such measurement can provide on Im G_8, Im
(e^2 G_E) and higher order weak couplings.


title: Heavy-to-light form factors for non-relativistic bound states

abstract:
  We investigate transition form factors between non-relativistic QCD bound
states at large recoil energy. Assuming the decaying quark to be much heavier
than its decay product, the relativistic dynamics can be treated according to
the factorization formula for heavy-to-light form factors obtained from the
heavy-quark expansion in QCD. The non-relativistic expansion determines the
bound-state wave functions to be Coulomb-like. As a consequence, one can
explicitly calculate the so-called ``soft-overlap'' contribution to the
transition form factor.


title: Status of the observed and predicted b bar{b} production at the Tevatron

abstract:
  We review the experimental status of the b-quark production at the Fermilab
Tevatron. We compare all available measurements to perturbative QCD predictions
(NLO and FONLL) and also to the parton-level cross section evaluated with
parton-shower Monte Carlo generators. We examine both the single $b$ cross
section and the so called b bar{b} correlations. The review shows that the
experimental situation is quite complicated because the measurements appear to
be inconsistent among themselves. In this situation, there is no solid basis to
either claim that perturbative QCD is challenged by these measurements or, in
contrast, that long-standing discrepancies between data and theory have been
resolved by incrementally improving the measurements and the theoretical
prediction.


title: $\nu_\mu$ disappearance at the SPL, T2K-I and the Neutrino Factory

abstract:
  We study the $\nu_\mu$ disappearance channel at T2K-phase I and the SPL and
analyse the achievable reduction of present uncertainties in $\theta_{23}$ and
$\Delta m^2_{23}$. We analyse the impact of discrete ambiguities in
sign($\Delta m^2{23}$) and sign($2 \tan \theta_{23}$). We show how the
disappearance channel at the Neutrino Factory is complementary to the
``golden'' and ``silver'' appearance channels and can be used to reduce the
eightfold-ambiguity problem in ($\theta_{13}-\delta$).


title: Model-Independent Properties of the B-Meson Distribution Amplitude

abstract:
  The operator product expansion is used to obtain model-independent
predictions for the first two moments of the renormalized B-meson light-cone
distribution amplitude phi_+(omega,mu), defined with a cutoff omega<Lambda_UV.
The leading hadronic power corrections are given in terms of the parameter
Lambda(bar)=m_B-m_b. From the cutoff dependence of the zeroth moment an
analytical expression for the asymptotic behavior of the distribution amplitude
is derived, which exhibits a negative radiation tail for omega>>mu. By solving
the evolution equation for the distribution amplitude, an integral
representation for phi_+(omega,mu) is obtained in terms an initial function
phi_+(omega,mu_0) defined at a lower renormalization scale. A realistic model
of the B-meson light-cone distribution amplitude is proposed, which satisfies
the moment relations and has the correct asymptotic behavior. This model
provides an estimate for the first inverse moment and the associated parameter
lambda_B.


title:
From the Kappa via the Ds0*(2317) to the chi_c0: connecting light and
  heavy scalar mesons

abstract:
  Pole trajectories connecting light and heavy scalar mesons, both broad
resonances and quasi-bound states, are computed employing a simple
coupled-channel model. Instead of varying the coupling constant as in previous
work, quark and meson masses are continuously changed, so as to have one scalar
meson evolve smoothly into another with different flavor(s). In particular, it
is shown, among several other cases, how the still controversial K0*(800) turns
into the established chi_c0, via the disputed D_s(2317). Moreover, a
chi'_c0(3946) is predicted, which may correspond to the recently observed
Y(3943) resonance. These results lend further support to our unified dynamical
picture of all scalar mesons, as unitarized q-qbar states with important
two-meson components.


title:
Improved Bounds on Universal Extra Dimensions and Consequences for LKP
  Dark Matter

abstract:
  We study constraints on models with a flat "Universal'' Extra Dimension in
which all Standard Model fields propagate in the bulk. A significantly improved
constraint on the compactification scale is obtained from the extended set of
electroweak precision observables accurately measured at LEP1 and LEP2. We find
a lower bound of M_c = R^{-1} > 700 (800) GeV at the 99% (95%) confidence
level. We also discuss the implications of this constraint on the prospects for
the direct and indirect detection of Kaluza-Klein dark matter in this model.


title: Flavor violating decays of the Higgs bosons in the THDM-III

abstract:
  We calculate the branching ratios for the decays of neutral Higgs bosons
($h^{0},H^{0},A^{0}$) into pairs of fermions, including flavor violating
processes, in the context of the General Two Higgs Doublet Model III.


title:
Strong unitary violations in the extra dimensional SM and the
  equivalence between Goldstone and longitudinal gauge bosons

abstract:
  Tree level unitarity violations of extra dimensional extensions of the
Standard Model may become much stronger when the scalar sector is included in
the bulk. This effect occurs when the couplings are not suppressed for larger
Kaluza-Klein levels, and could have relevant consequences for the phenomenology
of the next generation of colliders. We briefly review our formalism to obtain
more stringent unitarity bounds when KK modes are present, as well as the
generalization to extra dimensions of the Equivalence Theorem between Goldstone
bosons and longitudinal gauge bosons


title: Four Leptons Production in $e^-$ $e^+$ Collisions from 3-3-1 Model

abstract:
  We study the process $e^- + e^+ \to e^+ + e^+ + e^- + e^-$ for ILC and CLIC
energy regimes, in the minimal 3-3-1 model framework. The main contributions,
for the production of two bileptons each one decaying into two same-sign
leptons, come from s-channel annihilation ({\it via} $\gamma, Z$ and
${Z^\prime}$) and t-channel electron exchange.
  We evaluate the number of events for an extra neutral gauge boson mass
$M_{{Z^\prime}}$ in the range 1 TeV to 3 TeV. We compare some distributions
from 3-3-1 model with the Standard Model background in order to extract a
possible signature of the contribution of bilepton and ${Z^\prime}$ for the
process. From our analysis we conclude that our results give clear signals for
physics beyond the Standard Model in e$^-$ e$^+$ colliders.


title: Monte Carlo Neutrino Oscillations

abstract:
  We demonstrate that the effects of matter upon neutrino propagation may be
recast as the scattering of the initial neutrino wavefunction. Exchanging the
differential, Schrodinger equation for an integral equation for the scattering
matrix S permits a Monte Carlo method for the computation of S that removes
many of the numerical difficulties associated with direct integration
techniques.


title: Naturally heavy superpartners and a Little Higgs

abstract:
  We construct an extension of the MSSM in which scalar superpartners can
naturally be as heavy as 1 TeV. In the MSSM, the most significant fine tuning
stems from the logarithmically enhanced top-stop loop contribution to the soft
Higgs mass. We combine supersymmetry with the "simplest little Higgs" to render
this loop finite, thereby removing the large logarithm even in models in which
superpartner masses are generated at high scales such as in supergravity. Our
model predicts an extended Higgs sector, superpartner masses near a TeV and
little Higgs partners at a few TeV.


title: All-Multiplicity One-Loop Corrections to MHV Amplitudes in QCD

abstract:
  We compute the complete one-loop corrections to the simplest class of QCD
gluon amplitudes, those with two color-adjacent opposite-helicity external
particles. We present results for an arbitrary number of external legs. The
computation uses the recently-developed on-shell recursion relations for the
rational parts, along with older unitarity-based results for the cut-containing
terms.


title:
What would it take to determine the neutrino mass hierarchy if
  $\theta_{13}$ were too small?

abstract:
  We discuss the experimental requirements for a mass hierarchy measurement for
$\theta_{13}=0$ using muon neutrino disappearance. We find that a specially
optimized neutrino factory at $L \simeq 6 \,000 \, \mathrm{km}$ could do this
measurement using extreme luminosities. In particular, we do not require charge
identification for this purpose. In order to measure the mass hierarchy for
more adequate luminosities, we explore the capabilities of low energy narrow
band off-axis beams, which have relatively more events at low energies. We find
that, in this case, the energy resolution of the detector quickly becomes the
limiting factor of the measurement, and significantly affects the baseline
optimization for determining the mass hierarchy.


title:
Inclusive spectra in charmless semileptonic B decays by Dressed Gluon
  Exponentiation

abstract:
  The triple differential spectrum in \bar{B} -> X_u l \bar{\nu} is computed by
Dressed Gluon Exponentiation (DGE). In this framework the on-shell calculation,
converted into hadronic variables, can be directly used as an approximation to
the meson decay spectrum, without involving a leading-power non-perturbative
function. Sudakov resummation for the fully differential \bar{B} -> X_u l
\bar{\nu} width is formulated in moment space, where moments are defined using
the ratio between the lightcone momentum components of the partonic jet p^+/p^-
and the hard scale is p^-. In these variables the correspondence with the
\bar{B} -> X_s \gamma case is transparent. The Sudakov exponent is known to
next-to-next-to-leading logarithmic accuracy. Further constraints are put on
its Borel sum using the cancellation of the leading renormalon ambiguity and
the absence of the next-to-leading one, which was proven in the large-beta_0
limit and assumed here to be general. Based on the resummed spectrum, matched
to the fully differential NLO result, we calculate the event fraction
associated with experimental cuts on the hadronic mass (or the small lightcone
component) as well as on the lepton energy. Finally, we extract |V_ub| from
recent measurements by Belle and analyze the theoretical uncertainty.


title:
The QCD equation of state for two flavours at non-zero chemical
  potential

abstract:
  We present results of a simulation of 2 flavour QCD on a $16^3\times4$
lattice using p4-improved staggered fermions with bare quark mass $m/T=0.4$.
Derivatives of the thermodynamic grand canonical partition function
$Z(V,T,\mu_u,\mu_d)$ with respect to chemical potentials $\mu_{u,d}$ for
different quark flavours are calculated up to sixth order, enabling estimates
of the pressure and the quark number density as well as the chiral condensate
and various susceptibilities as functions of $\mu_{u,d}$ via Taylor series
expansion. Results are compared to high temperature perturbation theory as well
as a hadron resonance gas model. We also analyze baryon as well as isospin
fluctuations and discuss the relation to the chiral critical point in the QCD
phase diagram. We moreover discuss the dependence of the heavy quark free
energy on the chemical potential.


title:
Branching Ratio and CP Asymmetry of $B \to \rho \eta^{(\prime)}$ Decays
  in the Perturbative QCD Approach

abstract:
  In this paper,we calculate the branching ratios and CP-violating asymmetries
for $B^0 \to \rho^0 \eta^{(\prime)}$ and $B^+\to \rho^+ \etap$ decays in the
perturbative QCD factorization approach. In this approach, we not only
calculate the usual factorizable contributions, but also evaluate the
non-factorizable and annihilation type contributions. Besides the
current-current operators, the contributions from the QCD and electroweak
penguin operators are also taken into account. The theoretical predictions for
the branching ratios are $Br(B^+ \to \rho^+ \eta^{(\prime)}) \approx 9 \times
10^{-6}$ and $Br(B^0 \to \rho^0 \eta^{(\prime)}) \approx 5 \times 10^{-8}$,
which agree well with the measured values and currently available experimental
upper limits. We also predict large CP-violating asymmetries in these decays:
$A_{CP}^{dir}(\rho^\pm \eta)\approx -13 %$, $A_{CP}^{dir}(\rho^\pm
\eta^\prime)\approx -18 %$, $A_{CP}^{dir}(\rho^0 \eta)\approx -41%$,
$A_{CP}^{dir}(\rho^0 \eta^\prime)\approx -27%$, $A_{CP}^{mix}(\rho^0
\eta)\approx +25%$, and $A_{CP}^{mix}(\rho^0 \eta^\prime) \approx +11%$, which
can be tested by the current or future B factory experiments.


title: Production of quark pairs from classical gluon fields

abstract:
  We compute by numerical integration of the Dirac equation the number of
quark-antiquark pairs produced in the classical color fields of colliding
ultrarelativistic nuclei. Results for the dependence of the number of quarks on
the strength of the background field, the quark mass and time are presented. We
also perform several tests of our numerical method. While the number of qqbar
pairs is parametrically suppressed in the coupling constant, we find that in
this classical field model it could even be compatible with the thermal ratio
to the number of gluons.


title: Multiplicity distributions for jet parton showers in a medium

abstract:
  The "jet-quenching" interpretation of suppressed high-pT hadron production at
RHIC implies that jet multiplicity distributions and jet-like particle
correlations in heavy-ion collisions at RHIC and LHC differ strongly from those
seen at e+e- or pp colliders. Here, we present an approach for describing the
changes induced by the medium, which implements jet quenching as a
probabilistic medium-modified parton shower, treating leading and subleading
parton splittings on an equal footing. We show that the strong suppression of
single inclusive hadron spectra measured in Au-Au collisions at RHIC implies a
characteristic distortion of the single inclusive distribution of soft partons
inside the jet. We determine, as a function of jet energy, to what extent the
soft jet fragments can be measured above some momentum cut.


title: Multi-quark components in baryons

abstract:
  A brief review on some recent progresses in our understanding of multi-quark
components in baryons is presented. The multi-quark components in baryons seem
to be mainly in colored quark cluster configurations rather than in ``meson
cloud'' configurations or in the form of a sea of quark-antiquark pairs. The
colored quark cluster multi-quark picture gives a natural explanation of
empirical indications for a positive strangeness magnetic moment $\mu_s$ of the
proton and the longstanding mass-reverse problem of S11(1535) and $P11(1440) N*
resonances. A model-prediction for the $\mu_s$ of the proton is given.


title:
Physics reach of $\beta$-beams and $\nu$-factories: the problem of
  degeneracies

abstract:
  We discuss the physics reach of $\beta$-Beams and $\nu$-Factories from a
theoretical perspective, having as a guideline the problem of degeneracies. The
presence of degenerate solutions in the measure of the neutrino oscillation
parameters $\theta_{13}$ and $\delta$ is, in fact, the main problem that have
to be addressed in planning future neutrino oscillation experiments. If
degeneracies are not (at least partially) solved, it will be almost impossible
to perform, at any future facility, precise measurements of $\theta_{13}$
and/or $\delta$. After a pedagogical introduction on why degenerate solutions
arise and how we can get rid of them, we analyze the physics reach of current
$\beta$-beam and $\nu$-factory configurations. The physics reach of the
"standard" \BB is severely affected by degeneracies while a better result can
be obtained by higher-$\gamma$ setups. At the \NF the combination of Golden and
Silver channels can solve the eightfold degeneracy down to $\sin^2\theta_{13}
\le 10^{-3}$


title: Fully automated calculation in fermion scattering

abstract:
  The package aITALC has been developed for fully automated calculations of two
fermion production at e+ e- collider and other similar reactions. We emphasize
the connection and interoperability between the different modules required for
the calculation and the external tools Diana, Form and LoopTools. Results for
e+ e- -> f anti-f, e+ e- are presented.


title:
A QCD analysis of \bar p N -> gamma^* pi and \bar p N -> gamma^* gamma.
  Where is the pion in the proton ?

abstract:
  We study the scaling regime of nucleon-anti-nucleon annihilation into a
deeply virtual photon and a photon or meson, \bar p N -> gamma ^* pi, \bar p N
-> gamma ^* gamma, in the forward direction. The leading twist amplitude
factorizes into an antiproton distribution amplitude, a short-distance matrix
element and a long-distance dominated transition distribution amplitude (TDA)
which describes the nucleon to meson or photon transition. The impact
representation of this TDA maps out the transverse locations of the small size
core and the meson or photon cloud inside the proton.


title:
SUSY-QCD Corrections to $W^{\pm}H^{\mp}$ Associated Production at the
  CERN Large Hadron Collider

abstract:
  We calculate the SUSY-QCD corrections to the inclusive total cross sections
of the associated production processes $pp\to W^{\pm}H^{\mp}+X$ in the Minimal
Supersymmetric Standard Model(MSSM) at the CERN Large Hadron Collider(LHC). The
SUSY-QCD corrections can increase and decrease the total cross sections
depending on the choice of the SUSY parameters. When $\mu<0$ the SUSY-QCD
corrections increase the leading-order (LO) total cross sections significantly
for large tan$\beta$ ($\sim 40$), which can exceed 10% and have the opposite
sign with respect to the QCD and the SUSY-EW corrections, and thus cancel with
them to some extent. Moreover, we also investigate the effects of the SUSY-QCD
on the differential distribution of cross sections in transverse momentum $p_T$
and rapidity Y of W-boson, and the invariant mass $M_{W^+H^-}$.


title:
The measurement of $\theta_{13}$ and $\delta$: the role of the
  uncertainties on the solar and atmospheric parameters

abstract:
  In this talk we show how the errors on solar and atmospheric parameters
affect the measurement of the unknown PMNS parameters $\theta_{13}$ and
$\delta$ at future LBL facilities. Performing three parameters fits in
$\theta_{13}$, $\delta$ and, in turn, one of the atmospheric or solar
parameters, we show that present uncertainties on $\theta_{23}$ and $\Delta
m^2_{23}$ worsen significantly the precision on ($\theta_{13}$,$\delta$)
whereas the solar sector does not introduce further uncertainties. A precision
on the atmospheric parameters similar to what expected at T2K-I is necessary to
improve the sensitivities to $\theta_{13}$ and $\delta$.


title: Progress in Small x Resummation

abstract:
  I review recent theoretical progress in the resummation of small x
contributions to the evolution of parton distributions, in view of its
potential significance for accurate phenomenology at future colliders. I show
that a consistent perturbative resummation of collinear and energy logs is now
possible, and necessary if one wishes to use recent NNLO results in the HERA
kinematic region.


title: Status of the Standard Model Prediction of the Muon g-2

abstract:
  The current status of the Standard Model prediction for the anomalous
magnetic moment of the muon is briefly reviewed and compared with the present
experimental value.


title:
P-wave Pentaquark and its Decay in the Quark Model with Instanton
  Induced Interaction

abstract:
  P-wave pentaquarks with strangeness +1, I=0 and J^P=1/2^+ are studied in the
non-relativistic quark model with instanton induced interaction (III). We
present their mass splittings and orbital-spin-isospin-color structures. It is
found that decompositions of the wave functions are sensitive to III, while the
mass splittings are insensitive. The decay of the lowest energy pentaquark,
\Theta^+, is found to be suppressed when the contribution of III is increased.
Its wave function is dominated by Jaffe-Wilczek-type configuration at large
III.


title:
Relativistic diffusion model and analysis of large transverse momentum
  distributions

abstract:
  In order to describe large transverse momentum ($p_T$) distributions observed
in high energy nucleus-nucleus collisions, a stochastic model in the three
dimensional rapidity space is introduced.
  The fundamental solution of the radial symmetric diffusion equation is
Gaussian-like in radial rapidity.
  We can also derive a $p_T$ or radial rapidity distribution function, where a
distribution of emission center is taken into account. It is applied to the
analysis of observed large $p_T$ distributions of charged particles. It is
shown that our model approaches to a power function of $p_T$ in the high
transverse momentum limit.


title: Reheat Temperature and the Right-handed Neutrino Mass

abstract:
  We discuss the reheating temperature in the instant preheating scenario. In
this scenario, at the last stage of inflation, the inflaton field first decays
into another scalar field with an enormous number density via the instant
preheating mechanism. Subsequently, the produced scalar field decays into
normal matter accompanied by the usual reheating mechanism. As an inflationary
model, we identify the inflaton as a field which gives rise to a mass for the
right-handed (s)neutrino. One of the interesting consequences of the instant
preheating mechanism is the fact that the reheating temperature is proportional
to the mass of the decayed particle, {\it the right-handed sneutrino}, $T_R
\propto M_R$. This is very different from the ordinary perturbative reheating
scenario in which the reheating temperature is proportional to the mass of the
inflaton.


title: Q_T Resummation in Transversely Polarized Drell-Yan Process

abstract:
  We calculate QCD corrections to transversely polarized Drell-Yan process at a
measured $Q_T$ of the produced lepton pair in the dimensional regularization
scheme. The $Q_T$ distribution is discussed resumming soft gluon effects
relevant for small $Q_T$.


title:
Forward Hadronic Scattering from Few Gev to Multi Tev within Regge
  Theory

abstract:
  The Regge description of forward hadronic scattering is extended from
$\sim1\gev$ above each threshold up to the multi TeV range. This is achieved
with a simple parametrization, that includes mass effects, a logarithmic growth
based on an improved unitarity bound at intermediate energies and a separate
factorization of singularities. This parametrization can be easily implemented
for phenomenological use, but also sheds light on subdominant trajectories and
the Pomeron logarithmic growth law.


title: The Kaon B-parameter in quenched QCD

abstract:
  I report on a recent determination by the ALPHA collaboration of the kaon
B-parameter using lattice QCD with Wilson type quarks. An effort is made to
control all systematic errors except for the quenched approximation. The
preliminary result for the renormalization group invariant parameter is
$\hat{B}_K = 0.834(37)$, which translates to $B_K^MSbar(2 GeV)=0.604(27)$ in
the MSbar scheme with anticommuting $\gamma_5$.


title: Hadronic Structure from Perturbative dressing in QCD - The Valon Model

abstract:
  In the Framework of {\it{valon model}} we have calculated the parton
distribution in a valon for both the polarized and unpolarized cases. These
distributions are originated purely from the dressing of a valence quark in QCD
and are common to all hadrons. Structure functions, $F_{2}^{p,\pi}$, are
obtained, which agree rather well with the experimental results. A simple
relation between $F_{2}^{p}$ and $F_{2}^{\pi}$ is inferred. For the polarized
structure function, $g_{1}$ while the model gives good agreement with data, it
requires a sizable angular momentum contribution to the spin of the valon, and
hence to that of proton. This contribution is calculated.


title: Efficiency and maximal CP-asymmetry of scalar triplet leptogenesis

abstract:
  We study thermal leptogenesis induced by decays of a scalar SU(2)_L triplet.
Despite the presence of gauge interactions, unexpected features of the
Boltzmann equations make the efficiency close to maximal in most of the
parameter space. We derive the maximal CP asymmetry in triplet decays, assuming
that it is generated by heavier sources of neutrino masses: in this case
successful leptogenesis needs a triplet heavier than 2.8 10^{10} GeV and does
not further restrict its couplings, allowing detectable mu --> e gamma, tau -->
mu gamma rates in the context of supersymmetric models. Triplet masses down to
the TeV scale are viable in presence of extra sources of CP-violation.


title: Long-Wavelength Modes of Cosmological Scalar Fields

abstract:
  We give a numerical analysis of long-wavelength modes in the WKB
approximation of cosmological scalar fields coupled to gravity via
$\xi\phi^{2}R$. Massless fields are coupled conformally at $\xi=1/6$.
Conformality can be preserved for fields of nonzero mass by shifting $\xi$. We
discuss implications for density perturbations.


title:
NLO CHPT corrections to the transverse muon polarization in
  $K_{l2\gamma}$ decay

abstract:
  The calculation of the transverse muon polarization in $K^+ \to \mu^+ \nu
\gamma$ decay due to the final state interaction up to $O(p^6)$ CHPT level has
been carried out. It is shown that $O(p^6)$ corrections to the observable is
much less than $O(p^4)$ contribution.


title:
Supersymmetric SO(10) for fermion masses and mixings: rank-1 structures
  of flavour

abstract:
  We consider a supersymmetric SO(10) model with a SU(3) symmetry of flavour in
which fermion masses emerge via the see-saw mixing with superheavy fermions in
16+16bar representations. In this model the dangerous D=5 operators of proton
decay are naturally suppressed and flavour-changing supersymmetric effects are
under control. The mass matrices for all fermion types (up and down quarks,
charged leptons as well as neutrinos) appear in the form of combinations of
three rank-1 matrices, common to all types of fermions, with different
coefficients that are successive powers of small parameters, related to each
other by SO(10) symmetry properties. Two versions of the model are considered,
in which approximate grand unification of masses takes place between quarks and
leptons of the first family (with very small \tan\beta) or for the ones of the
second family (predicting moderate \tan\beta ~ 7-8). The second version
exhibits an interesting mechanism of unification of the determinants of the
Yukawa matrices of all types of fermions at the GUT scale and it provides a
perfect fit of the known data for fermion masses, mixing and CP-violation. It
predicts a hierarchical pattern of neutrino masses with non-zero theta_e3,
within 2-7 degrees. In addition, it predicts the correct sign of the baryon
asymmetry of the Universe via the leptogenesys scenario.


title:
Chiral symmetry restoration in excited hadrons, quantum fluctuations,
  and quasiclassics

abstract:
  In this paper, we discuss the transition to the semiclassical regime in
excited hadrons, and consequently, the restoration of chiral symmetry for these
states. We use a generalised Nambu-Jona-Lasinio model with the interaction
between quarks in the form of the instantaneous Lorentz-vector confining
potential. This model is known to provide spontaneous breaking of chiral
symmetry in the vacuum via the standard selfenergy loops for valence quarks. It
has been shown recently that the effective single-quark potential is of the
Lorentz-scalar nature, for the low-lying hadrons, while, for the high-lying
states, it becomes a pure Lorentz vector and hence the model exhibits the
restoration of chiral symmetry. We demonstrate explicitly the quantum nature of
chiral symmetry breaking, the absence of chiral symmetry breaking in the
classical limit as well as the transition to the semiclassical regime for
excited states, where the effect of chiral symmetry breaking becomes only a
small correction to the classical contributions.


title:
Spectroscopy of $\rm{q}^3\bar{\rm{q}}^3$-States in Quark Model and
  Baryon-Antibaryon Enhancements

abstract:
  We study the mass spectrum of the $\rm{q}^3\bar{\rm{q}}^3$ mesons both from
the quark model with triquark correlations and from common quark model with
colormagnetic interactions and with relative S-waves between quarks. Two
cluster configurations $(\rm{q}^3)-(\bar{\rm{q}}^3)$ and
$(\rm{q}^2\bar{\rm{q}})-(\rm{q}\bar{\rm{q}}^2)$ are considered. In the spectrum
we find rather stable states which have the same quantum number with particle
resonances which are corresponding to the $p\bar{p}$ enhancement,
$p\bar{\Lambda}$ enhancement and $\Lambda\bar{\Lambda}$ enhancement with
spin-$\mathbf{0}$ or $\mathbf{1}$. This imply these enhancements are NOT
experimental artifacts. The color-spin-flavor structures of $p\bar{p}$,
$p\bar{\Lambda}$, and $\Lambda\bar{\Lambda}$ enhancements are revealed. The
existence of spin-$\mathbf{1}$ $\Lambda\bar{\Lambda}, p\bar{\Lambda}, p\bar{p}$
enhancements is predicted.


title:
Analyses of third order Bose-Einstein correlation by means of Coulomb
  wave function

abstract:
  In order to include a correction by the Coulomb interaction in Bose-Einstein
correlations (BEC), the wave function for the Coulomb scattering were
introduced in the quantum optical approach to BEC in the previous work. If we
formulate the amplitude written by Coulomb wave functions according to the
diagram for BEC in the plane wave formulation, the formula for $3\pi^-$BEC
becomes simpler than that of our previous work. We re-analyze the raw data of
$3\pi^-$BEC by NA44 and STAR Collaborations by this formula. Results are
compared with the previous ones.


title: Limits of colour charge interaction in the instanton liquid

abstract:
  The effect of external colour field impact on the instanton liquid is
studied. In the course of this study the corresponding effective Lagrangians
are derived for both regimes of weak and strong external field and in long
wave-length approximation. The example of Euclidean colour point-like source is
analyzed in detail and the feedback of field on the instanton liquid is
estimated as a function of source intensity.


title: $\eta_c$ - glueball Mixing and Resonance X(1835)

abstract:
  The mixing of $\eta_c$ and the lowest mass pseudoscalar glueball is estimated
within the framework of the instanton liquid model. It is demonstrated that the
mixing is large and may explain the difference between the observed mass of the
glueball candidate X(1835) and the theoretical prediction of QCD sum rule
analysis.


title: Quantum Theory of Electron Transport Through Single-Level Quantum Dot

abstract:
  A new approach in the quantum theory of few-electron nanoelectronic devices
-- the S-matrix approach -- is presented in a simple example: a single-electron
transistor consisting of a single-level quantum dot connected with two metallic
leads through the corresponding potential barriers. The electron transport
through the quantum dot due to the electron tunneling between the dot and the
leads is studied. The strong Coulomb repulsion between the electrons in the dot
is taken into account exactly, while the tunneling between the dot and the
leads, considered as a small perturbation, is studied by means of the
perturbation theory. For summing up the infinite perturbation theory series we
apply the Green function technique and the Heisenberg equation of motion of the
electron annihilation and creation operators. The matrix elements of the
transition processes include both the direct and crossing terms, so that there
is no need to use the non-crossing approximation (NCA). The explicit expression
of the electron transport current is derived.


title:
Embedding the Texture of the Neutrino Mass Matrix into the MaVaNs
  Scenario

abstract:
  We have embedded the texture of the neutrino mass matrix with three families
into the MaVaNs scenario. We take the power-law potential of the acceleron
field and a typical texture of active neutrinos, which is derived by the D_4
symmetry and predicts the maximal mixing of the atmospheric neutrino and the
vanishing U_{e3}. The effect of couplings among the dark fermion and active
neutrinos are studied by putting the current cosmological data and the
terrestrial neutrino experimental data. It is found that the neutrino flavor
mixings evolve as well as the neutrino masses. Especially, U_{e3} develops into
the non-vanishing one and \theta_{atm} deviates from the maximal mixing due to
couplings among the dark fermion and active neutrinos.


title:
Transverse Spectra of Hadrons in Central $AA$ Collisions at RHIC and LHC
  from pQCD+Saturation+Hydrodynamics and from pQCD+Energy Losses

abstract:
  We study the transverse spectra of hadrons in nearly central $AA$ collisions
at RHIC and LHC in a broad transverse momentum range Low-$p_T$ spectra are
calculated by using boost-invariant hydrodynamics with initial energy and
net-baryon densities from the EKRT pQCD+saturation model. High-$p_T$ spectra
are obtained from pQCD jet calculation including the energy loss of the parton
in the matter prior to its fragmentation to final hadrons.


title: Searching the Color Glass Condensate Through $p_T$ Suppression

abstract:
  In this work the rapidity and transverse momentum dependence of the nuclear
modification ratio is evaluated for the dilepton production at RHIC and LHC,
using the Color Glass Condensate (CGC) framework. The ratio is compared for two
distinct dilepton mass values, concerning the transverse momentum distribution,
and a suppression of the Cronin peak is verified even for large mass. The
nuclear modification ratio suppression in the dilepton rapidity spectra, as
obtained for hadrons at RHIC, is verified for LHC energies at large transverse
momentum, although not present at RHIC energies. These results consolidate the
dilepton as a most suitable observable for QCD high density approaches.


title: The Dalitz decay pi0 -> e+ e- gamma revisited

abstract:
  The amplitude of the Dalitz decay pi0 -> e+ e gamma is studied and its
model-independent properties are discussed in detail. A calculation of
radiative corrections is performed within the framework of two-flavour chiral
perturbation theory, enlarged by virtual photons and leptons. The lowest meson
dominance approximation, motivated by large N\_C considerations, is used for
the description of the pi0 - gamma* - gamma* transition form factor and for the
estimate of the NLO low energy constants involved in the analysis. The two
photon reducible contributions is included and discussed. Previous calculations
are extended to the whole kinematical range of the soft-photon approximation,
thus allowing for the possibility to consider various experimental situations
and observables.


title:
B_{s,d}\to \gamma\gamma decay in the model with one universal extra
  dimension

abstract:
  We estimate the beyond the Standard Model (SM) contribution to the B_{s,d}
\to \gamma\gamma double radiative decay in the framework of the model with one
universal extra dimension. This contribution gives a \sim 3 (6)% enhancement of
the branching ratio calculated in the SM for B_{s (d)} \to \gamma\gamma.


title: The A5 and the pion field

abstract:
  In this talk, an SU(Nf)xSU(Nf)Yang-Mills model with a compact extra-dimension
is used to describe the spin-1 mesons and pions of massless QCD in the
large-Nc. The right 4D symmetry and symmetry-breaking pattern is produced by
imposing appropriate boundary conditions. The Goldstone boson fields are
constructed using a Wilson line. We derive the low-energy limit (chiral
lagrangian), discuss rho-meson dominance, sum rules between resonance couplings
and the relation with the QCD high-energy behavior. Finally, we provide an
analytic expression for the two-point function of vector and axial currents.


title: Neutrino oscillation physics with a FNAL proton driver

abstract:
  We discuss the need of a proton driver for the Fermilab neutrino oscillation
program, as well as its role in the global context.


title:
Geographical issues and physics applications of "very" long neutrino
  factory baselines

abstract:
  We discuss several potential applications of ``very'' long neutrino factory
baselines, as well as potential detector locations for these applications.


title: Medium-Modified Jet Shapes in Heavy-Ion Collisions

abstract:
  Jet quenching has been established as one of the main tools to study the
properties of the medium produced in heavy ion collisions. Most of the
experimental effort has been, up to now, on the measurements of inclusive
particle suppression. This observable suffers, however, of limitations due to
different trigger-bias effects. The study of jets (or particle correlations) in
a medium is the most promising way out for a better characterization of the
medium properties. I will present how these more differential measurements can
be used to study not only the density of the medium (the traditional parameter
fixed by jet quenching measurements) but also more dynamical quantities as flow
fields.


title: Bose-Einstein correlations at LEP and Tevatron energies

abstract:
  Using the Bose-Einstein correlations (BEC) implemented in PYTHIA we
investigated a possibility of the CDF experiment at the Tevatron to see the
two-particle correlations in the final state of interactions. The approach
based on quantum field theory at finite temperature was applied to the ALEPH
data at LEP, and the BEC important parameters were retrieved.


title: Aspects of the confinement mechanism in Coulomb-gauge QCD

abstract:
  Phenomenological consequences of the infrared singular, instantaneous part of
the gluon propagator in Coulomb gauge are investigated. The corresponding quark
Dyson-Schwinger equation is solved, neglecting retardation and transverse
gluons and regulating the resulting infrared singularities. While the quark
propagator vanishes as the infrared regulator goes to zero, the frequency
integral over the quark propagator stays finite and well-defined. Solutions of
the homogeneous Bethe-Salpeter equation for the pseudoscalar and vector mesons
as well as for scalar and axial-vector diquarks are obtained. In the limit of a
vanishing infrared regulator the diquark masses diverge, while meson properties
and diquark radii remain finite and well-defined. These features are
interpreted with respect to the resulting aspects of confinement for colored
quark-quark correlations.


title:
CP-odd observables in neutralino production with transverse e+ and e-
  beam polarization

abstract:
  We consider neutralino production and decay e^+e^ --> chi^0_i chi^0_j,
chi^0_j --> chi^0_1 f \bar{f} at a linear collider with transverse e^+ and e^-
beam polarization. We propose CP asymmetries by means of the azimuthal
distribution of the produced neutralinos and of that of the final leptons,
while taking also into account the subsequent decays of the neutralinos. We
include the complete spin correlations between production and decay. Our
framework is the Minimal Supersymmetric Standard Model with complex parameters.
In a numerical study we show that there are good prospects to observe these CP
asymmetries at the International Linear Collider and estimate the accuracy
expected for the determination of the phases in the neutralino sector.


title:
Probing the partonic structure of exotic particles in hard
  electroproduction

abstract:
  We argue that the electroproduction of exotic particles is a useful tool for
study of their partonic structure. In the case of hybrid mesons, the magnitude
of their cross sections shows that they are accessible for measurements in
existing electroproduction experiments.


title: Analytic Properties of Hard Exclusive Amplitudes

abstract:
  Analytic properties of hard exclusive processes described by Generalized
Parton Distributions (GPD's) are considered. The analytic continuation of GPD
is provided by Generalized Distribution Amplitudes (GDA). The GDA's for the
production of two $\rho-$mesons may give an access to four-quark exotic states.
The crucial role in the proof of analyticity is played by the Cavalieri
conditions (polynomiality), resulting in the "holographic" property of GPD,
when the full information about various hard processes is contained in the one
dimensional sections ($x=\pm \xi$)of GPD. The applicability of analyticity for
description of the double diffractive production of dileptons and Higgs bosons
is discussed.


title:
A Study of Heavy Flavoured Meson Fragmentation Functions in e+ e-
  annihilation

abstract:
  We compare QCD theoretical predictions for heavy flavoured mesons
fragmentation spectra in e+ e- annihilation with data from CLEO, BELLE and LEP.
We include several effects in our calculation: next-to-leading order initial
conditions, evolution and coefficient functions. Soft-gluon effects are
resummed at next-to-leading-log accuracy. A matching condition for the crossing
of the bottom threshold in evolution is also implemented at next-to-leading
order accuracy. Important initial-state electromagnetic radiation effects in
the CLEO and BELLE data are accounted for. We find that, with reasonably simple
choices of a non-perturbative correction to the fixed-order initial condition
for the evolution, the data from CLEO and BELLE can be fitted with remarkable
accuracy. The fitted fragmentation function, when evolved to LEP energies, does
not however represent fairly the D* fragmentation spectrum measured by ALEPH.
Large non-perturbative corrections to the coefficient functions of the meson
spectrum are needed in order to reconcile CLEO/BELLE and ALEPH results.
Non-perturbative parameters extracted from the fits to e+ e- fragmentation data
for D/D* and B mesons are tabulated. They can be employed in the theoretical
predictions for the production of charmed and bottomed mesons in hadron-hadron,
photon-hadron and photon-photon collisions.


title: Renormalons and Analytic Properties of the \beta function

abstract:
  The presence or absense of renormalon singularities in the Borel plane is
shown to be determined by the analytic properties of the Gell-Mann - Low
function \beta(g) and some other functions. A constructive criterion for the
absense of singularities consists in the proper behavior of the \beta function
and its Borel image B(z) at infinity, \beta(g)\sim g^\alpha and B(z)\sim
z^\alpha with \alpha\le 1. This criterion is probably fulfilled for the \phi^4
theory, QED and QCD, but is violated in the O(n)-symmetric sigma model with
n\to\infty.

categories: hep-ph astro-ph cond-mat.dis-nn cond-mat.stat-mech hep-th


title: Sextet Quarks and the Pomeron at the LHC

abstract:
  Adding two color sextet quarks to QCD gives many special features. The
high-energy S-Matrix, constructed via reggeon diagrams and chiral anomalies,
contains the Critical Pomeron and electroweak symmetry breaking is produced, by
sextet pions. Cosmic ray phenomena suggest large cross-section effects will be
seen at the LHC, in particular, involving the pomeron. The sextet sector
embeds, uniquely, in a massless, confining, left-handed SU(5) theory. The
anomaly based high-energy S-Matrix could be that of the full Standard Model.


title: Twenty Years of Diffraction at the Tevatron

abstract:
  Results on diffractive particle interactions from the Fermilab Tevatron
pbar-p collider are placed in perspective through a QCD inspired
phenomenological approach, which exploits scaling and factorization properties
observed in data. The results discussed are those obtained by the CDF
Collaboration from a comprehensive set of single, double, and multigap soft and
hard diffraction processes studied during the twenty year period since 1985,
when the CDF diffractive program was proposed and the first Blois Workshop was
held.