title: Renormalization prescriptions and bootstrap in effective theories

abstract:
  We discuss the peculiar features of the renormalization procedure in the case
of infinite-component effective theory. It is shown that in the case of
physically interesting theories (namely, those leading to the amplitudes with
asymptotic behavior governed by known Regge intercepts) the full system of
required renormalization prescriptions only contains those needed to fix the
minimal counterterm vertices with one, two, three and (in some cases) four
lines. There is no necessity in imposing the prescriptions for n-leg
counterterm vertices with (n > 4). Moreover, the prescriptions for n =< 4
cannot be taken arbitrary: an infinite system of bootstrap constraints must be
taken into account. The general method allowing one to write down the explicit
form of this system is explained and illustrated by the example of elastic
scattering process.


title:
Renormalization prescriptions in effective theory of pion-nucleon
  scattering

abstract:
  Using the results presented in the talk by V.Vereshagin (this conference), we
illustrate the approach developed in earlier papers by the calculation of (\pi
N) elastic scattering amplitude and explain how to derive corresponding
bootstrap conditions. In the end, we briefly mention some results of numerical
comparison with experimental data.


title: Higgs physics and CP violation

abstract:
  The CP violation in $K$ and B decays are discussed with the emphasize on the
precise prediction for $\epsilon'/\epsilon$ and the new physics effects from a
class of models with additional Higgs doublets and fermions. The contributions
from standard model with two-Higgs-doublet (S2HDM) to $K$, $B$ mixing and
decays are briefly reviewed. The possible large effects on CP violation in
$B\to \phi K$ is discussed in an extended standard model with both an
additional Higgs doublet and fourth generation quarks (S2HDM4). We show that
although the S2HDM and the Standard model with fourth generation quarks alone
are not likely to largely change the effective $\sin 2\beta$ from the decay of
$B \to \phi K_S $, the S2HDM4 model can easily account for the possible large
deviation of $\sin 2 \beta$ without conflicting with other experimental
constraints.


title: Bootstrap Equations for String-Like Amplitude

abstract:
  One of the ways to check the consistency of our effective field theory (EFT)
approach (explained by A.Vereshagin and V.Vereshagin at this conference) is to
perform the numerical testing of those sum rules for hadron resonance
parameters which follow from the system of bootstrap constrains. In this talk
we discuss the peculiar features of this procedure for the case of exactly
solvable bootstrap model based on Veneziano string amplitude. This allows us to
simulate different situations that may encounter in realistic EFT models. We
also make a short review of the technique that may be useful for further
analysis of various bootstrap systems.


title:
Currents on Superconducting Strings at Finite Chemical Potential and
  Temperature

abstract:
  We consider the model giving rise to Witten's superconducting cosmic strings
at finite fermion chemical potential and temperature. We demonstrate how
various symmetries of the hamiltonian can be used to exactly compute the
fermion electric current in the string background. We show that the current
along the string is not sensitive to the profiles of the string fields, and at
fixed chemical potential and temperature depends only on the string winding
number, the total gauge flux through the vortex and, possibly, the fermion mass
at infinity.


title: Studying top quark decay into the polarized W-boson in the TC2 model

abstract:
  We study the decay mode of top quark decaying into Wb in the TC2 model where
the top quark is distinguished from other fermions by participating in a strong
interaction. We find that the TC2 correction to the decay width $\Gamma (t \to
b W) $ is generally several percent and maximum value can reach 8% for the
currently allowed parameters. The magnitude of such correction is comparable
with QCD correction and larger than that of minimal supersymmetric model. Such
correction might be observable in the future colliders. We also study the TC2
correction to the branching ratio of top quark decay into the polarized W
bosons and find the correction is below $ 1 % $. After considering the TC2
correction, we find that our theoretical predictions about the decay branching
ratio are also consistent with the experimental data.


title:
A New Optimal Bound on Logarithmic Slope of Elastic Hadron-Hadron
  Scattering

abstract:
  In this paper we prove a new optimal bound on the logarithmic slope of the
elastic slope when: elastic cross section and differential cross sections in
forward and backward directions are known from experimental data. The results
on the experimental tests of this new optimal bound are presented in Sect. 3
for the principal meson-nucleon elastic scatterings: pion-nucleon, kaon-nucleon
at all available energies. Then we have shown that the saturation of this
optimal bound is observed with high accuracy practically at all available
energies in meson-nucleon scattering.


title: Destabilization of Neutron Stars by Type I Dimension Bubbles

abstract:
  An inhomogeneous compactification of a higher dimensional spacetime can
result in the formation of type I dimension bubbles, i.e., nontopological
solitons which tend to absorb and entrap massive particle modes. We consider
possible consequences of a neutron star that harbors such a soliton. The
astrophysical outcome depends upon the model parameters for the dimension
bubble, with a special sensitivity to the bubble's energy scale. For relatively
small energy scales, the bubble tends to rapidly consume the star without
forming a black hole. For larger energy scales, the bubble grows to a critical
mass, then forms a black hole within the star, which subsequently causes the
remaining star to collapse. It is possible that the latter scenario is
associated with core collapse explosions and gamma ray bursts.


title:
Neutrino Electromagnetic Form Factor and Oscillation Effects on Neutrino
  Interaction With Dense Matter

abstract:
  The mean free path of neutrino - free electron gas interaction has been
calculated by taking into account the neutrino electromagnetic form factors and
the possibility of neutrino oscillation. It is shown that the form factor
effect becomes significant for a neutrino magnetic moment \mu_\nu > 10^{-10}
mu_B and for a neutrino radius R > 10^{-6} MeV^{-1}. The mean free path is
found to be sensitive to the nu_e-nu_mu and nu_e-nu_e^R transition
probabilities.


title: High energy scattering in QCD as a statistical process

abstract:
  The scattering of two hadronic objects at high energy is similar to a
reaction-diffusion process described by the stochastic Fisher-Kolmogorov
equation. This basic observation enables us to derive universal properties of
the scattering amplitudes in a straightforward way, by borrowing some general
results from statistical physics.


title: The High-Temperature Phase of Yang-Mills Theory in Landau Gauge

abstract:
  The high-temperature phase of Yang-Mills theory in Landau gauge is studied
using Dyson-Schwinger equations. The propagators of the gluon and the
Faddeev-Popov ghosts are obtained at finite and infinite temperature, partially
analytically. The results are in good agreement with lattice results. It is
found that the infrared properties are only quantitatively affected by
temperature. The confinement of at least soft gluons transverse to the heat
bath is established, in accordance with the Kugo-Ojima and Gribov-Zwanziger
confinement scenarios. This is confirmed by investigating the corresponding
Schwinger functions. The hard modes are nearly inert even at temperatures of
the order of the phase transition temperature. In addition, the thermodynamic
potential is analyzed and solutions for 3d-Yang-Mills theory are obtained. It
is conjectured that Yang-Mills theory likely undergoes a first order phase
transition, which changes a strongly interacting system into another. The
phases differ mainly by the properties of the chromoelectric sector.


title: D-mesons in dense nuclear matter

abstract:
  The D-meson properties in dense nuclear matter are studied. The D-meson
spectral density is obtained within the framework of a coupled-channel
self-consistent calculation assuming, as bare meson-baryon interaction, a
separable potential. The $\Lambda_c(2593)$ resonance is generated dynamically
in our coupled-channel model. The medium modifications of the D-meson
properties due to Pauli blocking and the dressing of D-mesons, nucleons and
pions are also studied. We conclude that the self-consistent coupled-channel
process reduces the in-medium effects on the D-meson compared to previous
literature which do not considered the coupled-channel structure


title:
Branching ratio and CP violation of $B_{s}\to \pi K$ decays in the
  perturbative QCD approach

abstract:
  In the framework of perturbative QCD approach, we calculate the branching
ratio and CP asymmetry for $B_{s}^0(\bar{B}_{s}) \to \pi^{\pm} K^\mp$ and
$B_{s}(\bar{B}_{s})\to \pi^{0}\bar{K}^{0}(K^{0})$ decays. Besides the usual
factorizable diagrams, both non-factorizable and annihilation type
contributions are taken into account. We find that (a) the branching ratio of
$B_{s}^0(\bar{B}_{s}) \to \pi^{\pm} K^\mp$ is about $(6-10) \times 10^{-6}$;
$Br(B_{s}(\bar{B}_{s})\to \pi^{0}\bar{K}^{0}(K^{0}))$ about $ (1-3) \times
10^{-7}$; and (b) there are large CP asymmetries in the two processes, which
can be tested in the near future LHC-b experiments at CERN and BTeV experiments
at Fermilab.


title: Probing neutrino mass with displaced vertices at the Tevatron

abstract:
  Supersymmetric extensions of the standard model exhibiting bilinear R-parity
violation can generate naturally the observed neutrino mass spectrum as well
mixings. One interesting feature of these scenarios is that the lightest
supersymmetric particle (LSP) is unstable, with several of its decay properties
predicted in terms of neutrino mixing angles. A smoking gun of this model in
colliders is the presence of displaced vertices due to LSP decays in large
parts of the parameter space. In this work we focus on the simplest model of
this type that comes from minimal supergravity with universal R-parity
conserving soft breaking of supersymmetry (RmSUGRA). We evaluate the
potentiality of the Fermilab Tevatron to probe the RmSUGRA parameters through
the analysis of events possessing two displaced vertices stemming from LSP
decays. We show that requiring two displaced vertices in the events leads to a
reach in m_{1/2} twice the one in the usual multilepton signals in a large
fraction of the parameter space.


title: On radiative decay of $Z^{\prime}$ boson

abstract:
  In the framework of the extended $SU(2)_{h}\times SU(2)_{l}$ model we study
the radiative decay of an extra gauge boson $Z^{\prime}$, $Z^{\prime}\to\gamma
Z$. The data analysis results of the CDF collaboration at the Fermilab Tevatron
allow one to establish not only the lower bound of the decay probability
$Z^{\prime}\to\gamma Z$ normalized to Drell-Yan process $Z^{\prime}\to
\mu^{+}\mu^{-}$, $R(Z^{\prime}\to\gamma Z/\mu^{+}\mu^{-})> 1.4\times
10^{-5}\cot^{2}\phi$, but also to estimate the mixing angle $\xi$ between the
states $Z^{\prime}$ and $Z$, $|\xi| < 5\times 10^{-2}$, taking into account the
additional mixing angle $\phi$ related to the extended gauge group
$SU(2)_{h}\times SU(2)_{l}$. The comparison with the decays
$Z^{\prime}\to\tau^{+}\tau^{-}$ and $Z^{\prime}\to \bar b b$, $Z^{\prime}\to
\bar t t$ based on the LEP data is also presented.


title: $\gamma ^* \gamma ^* \to \rho \rho $ at very high energy

abstract:
  The next generation of $e^+e^-$-colliders will offer a possibility of clean
testing of QCD dynamics in the Regge limit. Recent progress in the theoretical
description of exclusive processes permits for many of them a consistent use of
the perturbative QCD methods.
  We advocate that the exclusive diffractive production of two $\rho$ mesons
from virtual photons at very high energies should be measurable at the future
linear collider (LC).


title: Parton distributions from the lattice

abstract:
  I review the current status of lattice calculations for two selected
observables related to nucleon structure: the second moment of the unpolarized
parton distribution, <x> (u-d), and the first moment of the polarized parton
distribution, the non-singlet axial coupling gA. The major challenge is the
requirement to extract them sufficiently close to the chiral limit. In the
former case, there still remains a puzzling disagreement between lattice data
and experiment. For the latter quantity, however, we may be close to obtaining
its value from the lattice in the immediate future.


title:
Pair-produced heavy particle topologies:MSSM neutralino properties at
  the LHC from gluino/squark cascade decays

abstract:
  Processes of the form $pp\to anything \to X_i X_j \to x\bar{x} + y\bar{y} (+
\slashchar{E})$ are studied via a technique that may be viewed as an adaptation
of time-honoured Dalitz plot analyses. $X_i$ and $X_j$ are new heavy states
(with $i,j=1...n$), which may be identical or distinct; and $x\bar{x}$ and
$y\bar{y}$ are necessarily distinct Standard Model (SM) fermion pairs whose
invariant masses can be measured. A Dalitz-like plot of said invariant masses,
$M(x\bar{x})$ {\it vs.$$} $M(y\bar{y})$, exhibits a topology connected to the
masses and specific decay chains of $X_i$ and $X_j$. Aside from relatively
minor details, observed patterns consist of a collection of box and wedge
shapes. This collection is model-dependent: comparison of the observed pattern
to the possibilities for a specific model yields information on which new
particle pair combinations are actually being produced, information beyond that
extractable from conventional one-dimensional invariant mass distributions. The
technique is illustrated via application to the Minimal Supersymmetric Standard
Model (MSSM) process $pp \to
\tilde{g}\tilde{g},\tilde{g}\tilde{q},\tilde{q}\tilde{q} \to
\widetilde{\chi}_i^0 \widetilde{\chi}_j^0 \to e^+ e^- + \mu^+ \mu^- (+
\slashchar{E})$. Here the heavy states are neutralinos $\widetilde{\chi}_i^0$
($i=2,3,4$) -- note $\widetilde{\chi}_1^0$ is excluded -- which are produced in
gluino/squark ($\tilde{g}$/$\tilde{q}$) cascade decay chains. Even with fairly
modest expectations for the LHC performance during the first few years, this
method still provides substantial insight into the neutralino mass spectrum and
couplings if gluino/squark masses are relatively low ($\simeq 400 \hbox{GeV}$).


title: Generalized Parton Distributions -- theoretical review --

abstract:
  In this talk an introduction to generalized parton distributions is given.
Recent developments are shortly reviewed, including non-perturbative
calculations, phenomenological aspects and evaluation of higher order
perturbative and power corrections.


title:
Baryon distribution amplitude: Large-Nc factorization, spin-flavor
  symmetry and soft-pion theorem

abstract:
  The 1/N_c expansion for the baryon distribution amplitude is constructed in
terms of a specially designed generating functional. At large N_c this
functional shows exponential behavior. The exponential factor is universal for
all low-lying baryons and baryon-meson scattering states. Simple factorization
properties are established for the preexponential term. This factorization
agrees with the large-N_c contracted SU(2N_f) spin-flavor symmetry. The
consistency of the factorization with the soft-pion theorem for the baryon
distribution amplitude is explicitly checked. A relation between the generating
functionals for the distribution amplitudes of the nucleon and the Delta
resonance is derived.


title: Photon-meson transition form factors of light pseudoscalar mesons

abstract:
  The photon-meson transition form factors of light pseudoscalar mesons $\pi
^{0}$, $\eta$, and $\eta ^{\prime}$ are systematically calculated in a
light-cone framework, which is applicable as a light-cone quark model at low
$Q^{2}$ and is also physically in accordance with the light-cone pQCD approach
at large $Q^{2}$. The calculated results agree with the available experimental
data at high energy scale. We also predict the low $Q^{2}$ behaviors of the
photon-meson transition form factors of $\pi ^{0}$, $\eta $ and $\eta ^{\prime
}$, which are measurable in $e+A({Nucleus})\to e+A+M$ process via Primakoff
effect at JLab and DESY.


title: Lepton Flavor Violation in Extra Dimension Models

abstract:
  Models involving large extra spatial dimension(s) have interesting
predictions on lepton flavor violating processes. We consider some 5D models
which are related to neutrino mass generation or address the fermion masses
hierarchy problem.
  We study the signatures in low energy experiments that can discriminate the
different models. The focus is on muon-electron conversion in nuclei, $\mu\ra e
\gamma$ and $\mu\ra 3e$ processes and their $\tau$ counterparts. Their links
with the active neutrino mass matrix are investigated. We show that in the
models we discussed the branching ratio of $\mu\ra e \gamma$ like rare process
is much smaller than the ones of $\mu\ra 3e$ like processes. This is in sharp
contrast to most of the traditional wisdom based on four dimensional gauge
models. Moreover, some rare tau decays are more promising than the rare muon
decays.


title: Lepton flavor violating Higgs boson decay H --> mu tau at muon colliders

abstract:
  We consider an effective nondiagonal coupling $H\bar{\mu}\tau$ and present
the analysis of the Higgs boson mediated lepton-flavor violating (LFV) reaction
$\mu^-\mu^+ --> \mu \tau$. For a Higgs boson mass around 115 GeV and convenient
values of the strength of the coupling $H\bar{\mu}\tau$, which are within the
bounds obtained from the experimental limits on the LFV decays $\tau-->\eta\mu$
and $\tau-->\mu\gamma$, we found that there would be up to a few hundreds of
$\mu \tau$ events per year at a muon collider running with an integrated
luminosity of $1 fb^{-1}$. We paid special attention on the background for this
LFV reaction, which arises from the standard model process $\mu^-\mu^+ -->
\mu\tau\bar{\nu}_{\mu}\nu_{\tau}$, and discuss how it can be separated from the
main signal.


title:
Isospin Breaking in $K\to3\pi$ Decays III: Bremsstrahlung and Fit to
  Experiment

abstract:
  We complete here our work on isospin violation in the $K\to3\pi$ system. We
first calculate $K\to2\pi$ to the same order as we did $K\to3\pi$ in papers I
and II of this series. This adds effects of order $G_{27} p^2 (m_u-m_d)$ and
$G_{27} p^2 e^2$ to earlier work. We calculate also the lowest order
Bremsstrahlung contributions, $K\to2\pi\gamma,3\pi\gamma$. With these and our
earlier results we perform a full fit to all available CP conserving data in
the $K\to2\pi,3\pi$ system including isospin violation effects. We perform
these fits under various input assumptions as well as test the factorization
and the vector dominance model for the weak NLO low energy constants.


title:
Associated Higgs Boson Production with heavy Quarks in e+e- Collisions:
  SUSY--QCD Corrections

abstract:
  The processes e+e- -> t tbar/b bbar + Higgs allow to measure the Yukawa
couplings between Higgs bosons and heavy quarks in supersymmetric theories. The
complete set of next-to-leading order SUSY-QCD corrections to the cross
sections of these processes have been determined in the minimal supersymmetric
extension of the Standard Model. They turn out to be O(10-20%) and thus
important for future linear e+e- colliders.


title: High Energy Cosmic Ray Air Showers and small-x QCD

abstract:
  We discuss that hadron-induced atmospheric air showers from ultra-high energy
cosmic rays are sensitive to QCD interactions at very small momentum fractions
x where nonlinear effects should become important. The leading partons from the
projectile acquire large random transverse momenta as they pass through the
strong field of the target nucleus, which breaks up their coherence. This leads
to a steeper x_F-distribution of leading hadrons as compared to low energy
collisions, which in turn reduces the position of the shower maximum Xmax. We
argue that high-energy hadronic interaction models should account for this
effect, caused by the approach to the black-body limit, which may shift fits of
the composition of the cosmic ray spectrum near the GZK cutoff towards lighter
elements. We further show that present data on Xmax(E) exclude that the rapid ~
1/x^0.3 growth of the saturation boundary (which is compatible with RHIC and
HERA data) persists up to GZK cutoff energies. Measurements of pA collisions at
LHC could further test the small-x regime and advance our understanding of high
density QCD significantly.


title:
On Power and Complementarity of the Experimental Constraints on Seesaw
  Models

abstract:
  We demonstrate the impact that present lepton flavour and CP violation data -
neutrino oscillations, baryon asymmetry of the universe, flavour violations in
charged lepton decays and lepton electric dipole moments - have on
supersymmetric seesaw theories by analysing the class of models based on a U(1)
flavour symmetry. The fermion U(1) charges are determined to a large extent by
the data, the flavour patterns being naturally defined through their choice.
The selected models generically predict mu -> e gamma within the reach of the
projected experiments, which could be sensitive enough to exclude the whole
class of them. By now, the present sensitivity to mu -> e gamma already
provides stringent bounds on the contribution of the seesaw couplings to the
lepton electric dipole moments.


title: Polarizability of the Nucleon and Compton Scattering

abstract:
  Different approaches to describe Compton scattering and the polarizability of
the nucleon have been discussed up to now. We show that the most appropriate
ones are provided by non-subtracted dispersion theories of the fixed-$t$ and
fixed-$\theta$ types, where the properties of these two versions are
complementary so that advantage can be taken from both of them. In the frame of
fixed-$t$ dispersion theory it was possible to precisely reproduce experimental
differential cross sections obtained for the proton in a wide angular range and
for energies up to 1 GeV. At energies of the first resonance region and below,
precise values for the electromagnetic polarizabilities and
spin-polarizabilities have been determined for the proton and the neutron. The
data show that diamagnetism is a prominent property of nucleon structure, where
the underlying mechanism is a $t$-channel $\sigma$-meson exchange. A similar
mechanism is responsible for the backward spin-polarizability where the
relevant meson is the $\pi^0$. It is a challenge for further research to
integrate the $\sigma$ and $\pi^0$ intermediate states into a consistent
description of the structure of the nucleon.


title: The Effects of Multiplicative Noise in Relativistic Phase Transitions

abstract:
  Effective stochastic equations for the continuous transitions of relativistic
quantum fields inevitably contain multiplicative noise. We examine the effect
of such noise in a numerical simulation of a temperature quench in a 1+1
dimensional scalar theory. We look at out-of-equilibrium defect formation and
compare our results with those of stochastic equations with purely additive
noise.


title: Radiatively Generated Isospin Violations in the Nucleon

abstract:
  Isospin violating valence and sea distributions are evaluated due to QED
leading ${\cal{O}}{(\alpha)}$ corrections to the standard QCD evolution
equations. Unique perturbative predictions are obtained within the radiative
parton model, and confirm earlier results. Nonperturbative contributions have
been estimated and depend on a single free parameter chosen to be the current
quark mass.The relevance of our predictions for extracting $\sin^2 \theta_W$
from DIS $\nu(\bar{\nu})N$ data (`NuTeV anomaly') is discussed as well.


title:
Identification of indirect new physics effects at e^+e^- colliders: the
  large extra dimensions case

abstract:
  We discuss indirect manifestations of graviton exchange, predicted by large
extra dimensions, in fermion-pair production at a high-energy e^+e^- collider.
By means of specifically defined asymmetries among integrated angular
distributions, the graviton exchange signal can be cleanly distinguished from
the effects of either vector-vector contact interactions or heavy scalar
exchanges. The role of initial electron and positron beams polarization is also
discussed. The method is applied to a quantitative assessment of the
sensitivity to the mass cut-off parameter M_H of the KK graviton tower in the
ADD scenario, and of the potential identification reach of this mechanism
obtainable at the currently planned Linear Collider.


title: Odderon in the Color Glass Condensate

abstract:
  We discuss the definition and the energy evolution of scattering amplitudes
with $C$-odd ("odderon") quantum numbers within the effective theory for the
Color Glass Condensate (CGC) endowed with the functional, JIMWLK, evolution
equation. We explicitly construct gauge-invariant amplitudes describing
multiple odderon exchanges in the scattering between the CGC and two types of
projectiles: a color--singlet quark--antiquark pair (or `color dipole') and a
system of three quarks in a colorless state. We deduce the energy evolution of
these amplitudes from the general JIMWLK equation, which for this purpose is
recast in a more synthetic form, which is manifestly infrared finite. For the
dipole odderon, we confirm and extend the non--linear evolution equations
recently proposed by Kovchegov, Szymanowski and Wallon, which couple the
evolution of the odderon to that of the pomeron, and predict the rapid
suppression of the odderon exchanges in the saturation regime at high energy.
For the 3--quark system, we focus on the linear regime at relatively low
energy, where our general equations are shown to reduce to the
Bartels--Kwiecinski--Praszalowicz equation. Our gauge--invariant amplitudes,
and the associated evolution equations, stay explicitly outside the M\"obius
representation, which is the Hilbert space where the BFKL Hamiltonian exhibits
holomorphic separability.


title:
Higgs boson production at hadron colliders in the k_T-factorization
  approach

abstract:
  We consider the Higgs boson production at high energy hadron colliders in the
framework of the k_T-factorization approach. The attention is focused on the
dominant gluon-gluon fusion subprocess. We calculate the total cross section
and transverse momentum distributions of the inclusive Higgs production using
unintegrated gluon distributions in a proton obtained from the full CCFM
evolution equation. We show that k_T-factorization gives a possibility to
investigate the associated Higgs boson and jets production. We calculate the
transverse momentum distributions and study the Higgs-jet and jet-jet azimuthal
correlations in the Higgs + one or two jet production processes. We demonstrate
the importance of the higher-order corrections within the k_T-factorization
approach. These corrections should be developed and taken into account in the
future applications.


title:
Towards a symmetric approach to high energy evolution: generating
  functional with Pomeron loops

abstract:
  We derive an evolution equation for the generating functional which accounts
for processes for both gluon emission and recombination. In terms of color
dipoles, the kernel of this equation describes evolution as a classical
branching process with conserved probabilities. The introduction of dipole
recombination allows one to obtained closed loops during the evolution, which
should be interpreted as Pomeron loops of the BFKL Pomerons. In comparison with
the emission, the dipole recombination is formally $1/N_c^2$ suppressed. This
suppression, nevertheless, is compensated at very high energies when the
scattering amplitude tends to its unitarity bound.


title: Introduction to GR@PPA event generators for pp/ppbar collisions

abstract:
  We have developed an extended framework, named GR@PPA, of the GRACE system
for hadron collisions. The GRACE system is an automatic Feynman diagram
calculation system and an event generator based on this diagram calculation.
While the original GRACE system assumes that both the initial and final states
are well-defined, the GR@PPA framework applies that the initial and final
states parton configuration is treated in the Feynman diagram calculation at
the same time by putting one more integration variables. As a result, some
subprocesses with the same coupling order in hadron-hadron collisions can share
an identical "GRACE output code" and can be treated as a single subprocess.
This technique simplifies the program code and saves the computing time very
much. The constructed event generators would be suitable for the large scale
Monte Carlo production in the hadron colliders. In this paper, we discuss this
technique, and present some results and performances.


title: Gluonic contribution to the nucleon self-energy in an effective theory

abstract:
  Gluonic contributions to the self-energy of a nucleon have been investigated
in an effective theory. The couplings of the topological charge density to
nucleons give rise to OZI violating nucleon interactions. The one-loop
self-energy of a nucleon arising due to these interactions have been calculated
using a heavy baryon chiral perturbation theory. The divergences have been
regularized using form factors. The nontrivial structure of the QCD vacuum has
also been taken into account.


title: A narrow "peanut" pentaquark

abstract:
  We analyse the decay $\Theta_s(1/2^+)\to NK$ in a non-relativistic Fock space
description using three and five constituent quarks for the nucleon and the
pentaquark, respectively. Following Jaffe and Wilczek \cite{jw}, we assume that
quark-quark correlations in spin-zero state play an important role for the
pentaquark internal structure. Within this scenario, a strong dynamical
suppression of the decay width is shown to be possible only if the pentaquark
has an asymmetric "peanut" structure with the strange antiquark in the center
and the two extended composite diquarks rotating around. In this case a decay
width of $\simeq$ 1 MeV may be a natural possibility.


title: The B_K Kaon Parameter in the 1/N_c Expansion

abstract:
  We present work going on calculating the kaon B_K parameter in the 1/N_c
expansion. The goal of this work is to analyze analytically in the presence of
chiral corrections this phenomenologically very important parameter.
  We present the method used and preliminary results for the chiral limit value
for which we get the invariant \hat B_K^\chi=0.29 \pm 0.15. We also give some
analytical indications of why the large N_c prediction of \hat B_K= 3/4 may
have small 1/N_c corrections in the real case.


title:
Mellin Moments of the Next-to-next-to Leading Order Coefficient
  Functions for the Drell-Yan Process and Hadronic Higgs-Boson Production

abstract:
  We calculate the Mellin moments of the next-to-next-to leading order
coefficient functions for the Drell--Yan and Higgs production cross sections.
The results can be expressed in terms of multiple finite harmonic sums of
maximal weight w = 4. Using algebraic and structural relations between harmonic
sums one finds that besides the single harmonic sums only five basic sums and
their derivatives w.r.t. the summation index contribute. This representation
reduces the large complexity being present in x-space calculations and is well
suited for fast numerical implementations.


title: Multiplicity and Pt Correlations in Relativistic Nuclear Collisions

abstract:
  The theoretical description of the correlations between observables in two
separated rapidity intervals for AA-interactions at high energies is presented.
In the case with the realistic nucleon distribution density of colliding nuclei
the MC calculations of the long-range correlation functions at different values
of impact parameter are done.
  For n-n and pt-n correlations it is shown that the impact parameter
fluctuations at a level of a few fermi, unavoidable in any experiment,
significantly change the magnitude of correlation coefficients. The rise of
pt-n and especially pt-pt correlation coefficients is found when one passes
from SPS to RHIC and LHC energies.


title:
Quark-hadron duality and higher twist contributions in structure
  functions

abstract:
  Quark-hadron duality is studied in a systematic way for polarized and
unpolarized structure functions, by taking into account all the available data
in the resonance region. In both cases, a precise perturbative QCD based
analysis of the integrals of the structure functions in the resonance region
has been performed: non perturbative contributions have been disentangled,
higher twist contributions have been evaluated and compared with the ones
extracted in the deep inelastic scattering region. A different behavior for the
unpolarized and polarized structure functions at low Q^2 is found.


title: Baryon helicity in B decay

abstract:
  The unexpectedly large transverse polarization measured in the B-to-phi K*
decay poses the question whether it is accounted for as a strong interaction
effect or possibly points to a hidden nonstandard weak interaction. We extend
here the perturbative argument to the helicity structure of the two-body
baryonic decay and discuss qualitatively on how the baryonic B decay modes
might help us in understanding the issue raised by the B-to-VV decays. We find
among others that the helicity +1/2 amplitude dominates in the leading order in
the B (b-bar q) decay and that the dominant amplitude is sensitive to the
right-handed penguin interaction.


title: Analytic calculation of field-strength correlators

abstract:
  Field correlators are expressed using background field formalism through the
gluelump Green's functions. The latter are obtained in the path integral and
Hamiltonian formalism. As a result behaviour of field correlators is obtained
at small and large distances both for perturbative and nonperturbative parts.
The latter decay exponentially at large distances and are finite at x=0, in
agreement with OPE and lattice data.


title: Recent developments from lattice QCD

abstract:
  This year lattice QCD has become very public. A new generation of simulations
(including light dynamical quarks) have produced results which are in close
agreement with many ``easy'' experimental quantities, and precise predictions
for quantities which are tests of the Standard Model. Is QCD over? Reality is
somewhat more nuanced. I will try to put the recent results into context: as in
any theoretical calculation, there are always hidden assumptions! Hopefully I
can give you a feel for some of them.


title:
Supernova neutrinos can tell us the neutrino mass hierarchy
  independently of flux models

abstract:
  We demonstrate that the detection of shock modulations of the neutrino
spectra from a galactic core-collapse supernova is sufficient to obtain a high
significance determination of the neutrino mass hierarchy if the supernova
event is observed in both a Mton-class water Cherenkov detector and a 100
kton-class liquid argon detector. Neither detailed supernova neutrino flux
modelling nor observation of Earth matter effects is needed for this
determination. As a corollary, a nonzero value of \theta_x will be established.


title: Topological Defects in QCD at large Baryon Density and/or large $N_c$

abstract:
  The main leitmotiv of the present talk is analysis of different topological
objects such as strings and domain walls in QCD. As it is well known, the
standard model in general (and QCD in particular) does not support any kind of
such objects due to some simple topological arguments. However, the situation
cardinally changes when one considers QCD in large $N_c$ limit or in the limit
of large baryon density when the unique light $\eta'$ field emerges. I discuss
$\eta'$- domain walls and $\eta'$ global strings which occur in both systems:
in high density QCD and in QCD at large $N_c $.
  I also discuss the effects of quantum anomalies in the presence of
topological objects in high-density QCD. The anomaly induced interactions lead
to a number of interesting phenomena (such as the induced currents along the
strings) which may have phenomenological consequences observable in neutron
stars.


title:
New gauge bosons from the littlest Higgs model and the process
  $e^{+}e^{-}\to t\bar{t}$

abstract:
  In the context of the littlest Higgs$(LH)$ model, we study the process $
e^{+}e^{-}\to t\bar{t}$. We find that the new gauge bosons $Z_{H}$ and $B_{H}$
can produce significant correction effects on this process, which can be
further enhanced by the suitably polarized beams. In most of the parameter
space preferred by the electroweak precision data, the absolute value of the
relative correction parameter $R_{B_{H}}$ is larger than 5%. As long as
$1TeV\leq M_{Z_{H}}\leq 1.5TeV$ and $0.3\leq c\leq 0.5,$ the absolute value of
the relative correction parameter $R_{Z_{H}}$ is larger than 5%. With
reasonable values of the parameters of the $LH$ model, the possible signals of
the new gauge bosons $B_{H}$ and $Z_{H}$ can be detected via the process $
e^{+}e^{-} \to t\bar{t}$ in the future $LC$ experiments with the c.m. energy
$\sqrt{S}=800GeV$. $B_{H}$ exchange and $Z_{H}$ exchange can generate
significantly corrections to the forward-backward asymmetry $A_{FB}(t\bar{t})$
only in small part of the parameter space.


title: Hadronization and Quark Probes of Deconfinement at RHIC

abstract:
  We discuss experimental features of identified particle production from
nucleus-nucleus collisions. These features reflect hadronization from a
deconfined partonic matter whose particle formation scheme is distinctly
different from fragmentation phenomenology in elementary collisions.
Multi-parton dynamics, such as quark coalescences or recombinations, appear to
be essential to explain the experimental measurements at the intermediate
transverse momentum of 2--5 GeV/c. Constituent quarks seem to be the dominant
degrees of freedom at hadronization.
  Heavy quark production should help quantify deconfined matter properties.


title: Charmed scalar resonances -- Conventional and four-quark mesons

abstract:
  We propose that there coexist two scalar mesons of different structures (a
conventional meson and a four-quark meson) in the recently observed broad bumps
just below the large peak of the tensor meson in the D-pi mass distribution. We
base this proposal on the interpretation of the charm-strange scalar meson of
mass 2317 MeV as a four-quark meson. The strange counterparts of these scalar
mesons are also studied.


title: New tests for experiments producing pentaquarks

abstract:
  The distribution of the squared momentum difference |P_A|^2 - |P_B|^2 between
the momenta in the laboratory system of two experimentally observed particles A
and B provides a test for whether an observed mass peak indicates a real
resonance rather than nonresonant background or kinematic reflection. The
angular distribution of the relative momenta in the center-of-mass system
exhibits a forward-backward symmetry in the production and decay of any
resonance with a definite parity. This symmetry is not expected in other
nonresonant processes and can be expressed without needing angular
distributions in terms of the easily measured momenta in the laboratory frame
that are already measured and used to calculate the invariant mass of the
system. Our test is especially useful for low statistics experiments where the
full angular distribution cannot be determined. It can be applied to both
fixed-target and collider searches for the Theta^+ and Theta_c pentaquarks.


title: Muon g-2 Constraints to SUSY Dark Matter over the Next Decade

abstract:
  The anomalous magnetic moment of the muon has been measured to 0.5 ppm in a
series of precision experiments at the Brookhaven Alternating Gradient
Synchrotron. The individual results for each sign: a(mu+)= 11 659 204(7)(5)
E-10 and a(mu-) = 11 659 214(8)(3) E-10 are consistent with each other, so that
we can write the average anomaly as a(mu)(exp) = 11 659 208(6) E-10 (0.5 ppm).
A discrepancy between the measured value and the Standard Model (Delta a(mu))
is a signal for new physics. Assuming that such a discrepancy is due to
contributions from supersymmetric particles provides a framework which can be
used to constrain the mass of the dark matter particles, assumed to be the
lightest neutral supersymmetric particles. The deviation from the standard
model has varied between 1.5 sigma and 3 sigma significance, dominated by
uncertainties in the hadronic contribution to the standard model calculation.
Currently the standard model prediction is calculated to 0.6 ppm precision and
Delta a(mu) = 23.5 (9.0) E-10, representing a 2.6 sigma deviation. We expect
that the error on a(mu)(SM) will be reduced by a factor of two within the next
decade. To fully utilize this improvement, a new g-2 run is proposed for the
near future. If the mean Delta a(mu) remains the same, this would result in
close to a 6 sigma discrepancy. In this case, we would expect to see SUSY
particles at the LHC and use the g-2 results to measure tan beta. If, instead,
the Standard Model is confirmed to this precision, gauginos must have masses
higher than ~ 500 GeV/c2 and simple SUSY dark matter models will be severely
constrained.


title: Probing neutrino mixing angles with ultrahigh energy neutrino telescopes

abstract:
  We point out that detecting $\nuebar$'s from distant astrophysical sources
with the up-coming and future neutrino telescopes using the Glashow resonance
channel $\nuebar e^{-}\to W^{-} \to$ anything, which occurs over a small energy
window around the $\nuebar$ energy of $\sim6.3\pev$, offers a new way of
measuring or setting limits on neutrino mixing angles, in particular the angle
$\theta_{12}$, thereby providing an independent experimental probe of neutrino
mixing angles. We also discuss how this exercise may throw light on the nature
of the neutrino production mechanism in individual astrophysical sources.


title: Diffraction, the Color Glass Condensate and String Theory

abstract:
  We explain the main ideas of the color glass condensate in high energy
collisions. Different approaches to the problem are outlined with emphasis on
the resummation approach. We present evidence that the color glass condensate
can be described by an effective conformal field theory or even by a string
theory.


title: Non-linear QCD evolution with improved triple-pomeron vertices

abstract:
  In a previous publication, we have constructed a set of non-linear evolution
equations for dipole scattering amplitudes in QCD at high energy, which extends
the Balitsky-JIMWLK hierarchy by including the effects of fluctuations in the
gluon number in the target wavefunction. In doing so, we have relied on the
color dipole picture, valid in the limit where the number of colors is large,
and we have made some further approximations on the relation between scattering
amplitudes and dipole densities, which amount to neglecting the non-locality of
the two-gluon exchanges. In this Letter, we relax the latter approximations,
and thus restore the correct structure of the `triple-pomeron vertex' which
describes the splitting of one BFKL pomeron into two within the terms
responsible for fluctuations. The ensuing triple-pomeron vertex coincides with
the one previously derived by Braun and Vacca within perturbative QCD. The
evolution equations can be recast in a Langevin form, but with a multivariable
noise term with off-diagonal correlations. Our equations are shown to be
equivalent with the modified version of the JIMWLK equation recently proposed
by Mueller, Shoshi, and Wong.


title: Modeling quark-hadron duality in polarization observables

abstract:
  We apply a model for the study of quark-hadron duality in inclusive electron
scattering to the calculation of spin observables. The model is based on
solving the Dirac equation numerically for a scalar confining linear potential
and a vector color Coulomb potential. We qualitatively reproduce the features
of quark-hadron duality for all potentials considered, and discuss the onset of
scaling and duality for the responses, spin structure functions, and
polarization asymmetries. Duality may be applied to gain access to kinematic
regions which are hard to access in deep inelastic scattering, namely for
$x_{Bj} \to 1$, and we discuss which observables are most suitable for this
application of duality.


title: A Charge-Conjugation-Invariance Constrained Pomeron-Quark Coupling

abstract:
  The commonly used $\gamma_{\mu}} Pomeron-quark coupling changes its sign
under charge conjugation, in contradiction to the property of Pomeron. I show
that the Pomeron-quark coupling is tensorial and is invariant under the charge
conjugation.


title: The role of Cahn and Sivers effects in Deep Inelastic Scattering

abstract:
  The role of intrinsic $\bfk_\perp$ in inclusive and semi-inclusive Deep
Inelastic Scattering processes ($\ell p \to \ell h X$) is studied with exact
kinematics within QCD parton model at leading order; the dependence of the
unpolarized cross section on the azimuthal angle between the leptonic and the
hadron production planes (Cahn effect) is compared with data and used to
estimate the average values of $k_\perp$ both in quark distribution and
fragmentation functions. The resulting picture is applied to the description of
the weighted single spin asymmetry $A_{UT}^{\sin(\phi_\pi - \phi_S)}$ recently
measured by the HERMES collaboration at DESY; this allows to extract some
simple models for the quark Sivers functions. These are compared with the
Sivers functions which succeed in describing the data on transverse single spin
asymmetries in $\pup p \to \pi X$ processes; the two sets of functions are not
inconsistent. The extracted Sivers functions give predictions for the COMPASS
measurement of $A_{UT}^{\sin(\phi_\pi - \phi_S)}$ in agreement with recent
preliminary data, while their contribution to HERMES $A_{UL}^{\sin\phi_\pi}$ is
computed and found to be small. Predictions for $A_{UT}^{\sin(\phi_K -
\phi_S)}$ for kaon production at HERMES are also given.


title: On the Couplings of the Rho Meson in AdS/QCD

abstract:
  We argue that in generic AdS/QCD models (confining gauge theories dual to
string theory on a weakly-curved background), the couplings g_{rho HH} of any
rho meson to any hadron H are quasi-universal, lying within a narrow band near
m(rho)^2/f(rho). The argument relies upon the fact that the rho is the
lowest-lying state created by a conserved current, and the detailed form of the
integrals which determine the couplings in AdS/QCD. Quasi-universality holds
even when rho-dominance is violated. The argument fails for all other hadrons,
except the lowest-lying spin-two hadron created by the energy-momentum tensor.
Explicit examples are discussed.


title:
In pursuit of Pomeron loops: the JIMWLK equation and the Wess-Zumino
  term

abstract:
  We derive corrections to the JIMWLK equation in the regime where the charge
density in the hadronic wave function is small. We show that the framework of
the JIMWLK equation has to be significantly modified at small densities in
order to properly account for the noncommutativity of the charge density
operators. In particular the weight function for the calculation of averages
can not be real, but is shown to contain the Wess-Zumino term. The corrections
to the kernel of the JIMWLK evolution which are leading at small density are
resummed into a path ordered exponential of the functional derivative with
respect to the charge density operator, thus hinting at intriguing duality
between the high and the low density regimes.


title:
The 2004 UTfit Collaboration Report on the Status of the Unitarity
  Triangle in the Standard Model

abstract:
  Using the latest determinations of several theoretical and experimental
parameters, we update the Unitarity Triangle analysis in the Standard Model.
The basic experimental constraints come from the measurements of |V_ub/V_cb|,
Delta M_d, the lower limit on Delta M_s, epsilon_k, and the measurement of the
phase of the B_d - anti B_d mixing amplitude through the time-dependent CP
asymmetry in B^0 to J/psi K^0 decays. In addition, we consider the direct
determination of alpha, gamma, 2 beta + gamma and cos(2 beta) from the
measurements of new CP-violating quantities, recently performed at the B
factories. We also discuss the opportunities offered by improving the precision
of the various physical quantities entering in the determination of the
Unitarity Triangle parameters. The results and the plots presented in this
paper can also be found at http://www.utfit.org, where they are continuously
updated with the newest experimental and theoretical results.


title: Comments on Diquarks, Strong Binding and a Large Hidden QCD Scale

abstract:
  We present arguments regarding diquarks possible role in low-energy hadron
phenomenology that escaped theorists' attention so far. Good diquarks, i.e. the
$0^{+}$ states of two quarks, are argued to have a two-component structure with
one of the components peaking at distances several times shorter than a typical
hadron size (a short-range core). This can play a role in solving two old
puzzles of the 't Hooft 1/N expansion: strong quark mass dependence of the
vacuum energy density and strong violations of the Okubo-Zweig-Iizuka (OZI)
rule in the quark-antiquark $0^\pm$ channels. In both cases empiric data defy
't Hooft's 1/N suppression. If good diquarks play a role at an intermediate
energy scale they ruin 't Hoofts planarity because of their mixed-flavor
composition. This new scale associated with the good diquarks may be related to
a numerically large scale discovered in [V. Novikov, M. Shifman, A. Vainshtein
and V. Zakharov, Nucl. Phys. B 191, 301 (1981)] in a number of phenomena mostly
related to vacuum quantum numbers and $0^\pm$ glueball channels. If SU(3)$_{\rm
color}$ of bona fide QCD is replaced by SU(2)$_{\rm color}$, diquarks become
well-defined gauge invariant objects. Moreover, there is an exact symmetry
relating them to pions. In this limit predictions regarding good diquarks are
iron-clad. If passage from SU(2)$_{\rm color}$ to SU(3)$_{\rm color}$ does not
lead to dramatic disturbances, these predictions remain qualitatively valid in
bona fide QCD.


title:
Prediction for Quark Mixing from Universal Quark and Lepton Mass
  Matrices with Flavor 2 <-> 3 Symmetry

abstract:
  We propose a mass matrix model that gives a unified description of quark and
lepton with the same texture form based on a flavor 2 <-> 3 symmetry. The model
is in contrast with the conventional picture that the mass matrix forms in the
quark sector will take somewhat different structures from those in the lepton
sector. By investigating possible types of assignment for masses, we find that
our quark mass matrices can lead to small CKM quark mixings which are
consistent with experimental values. We also find some
phase-parameter-independent relations among CKM quark mixing matrix elements.


title:
Electromagnetic Probes of Strongly Interacting Matter: Probes of Chiral
  Symmetry Restoration?

abstract:
  The QCD sum rule approach to in-medium modifications of the omega meson in
nuclear matter is reviewed with emphasis of its relation to 4-quark condensates
and chiral symmetry restoration. Possible implications of the CB-TAPS
experiment for the reaction gamma A -> A' omega (-> pi0 gamma) are sketched and
the particularly important role of di-electron probes, accessible with HADES,
is highlighted. A brief update of a parametrization of the previous dilepton
and photon probes from CERES and WA98 of heavy-ion collisions at CERN-SPS
energies is presented.


title: Soft and hard processes in QCD

abstract:
  QCD equations for the generating functions are applied to separate soft and
hard jets in $e^+e^-$-processes of multiparticle production. The dependence of
average multiplicities and higher moments of multiplicity distributions of
particles created in a "newly born" soft subjets on the share of energy devoted
to them is calculated in fixed coupling gluodynamics. This dependence is the
same as for the total multiplicity up to a constant factor if soft jets are
defined as those carrying out a fixed share of initial energy at all energies.
The constant factor depends on this share in a non-trivial way. Other
definitions are also proposed. The relation between these quantities for soft
and hard processes is discussed.


title: Accidental Goldstone Bosons

abstract:
  We study vacuum alignment in theories in which the chiral symmetry of a set
of massless fermions is both spontaneously and explicitly broken. We find that
transitions occur between different phases of the fermions' CP symmetry as
parameters in their symmetry breaking Hamiltonian are varied. We identify a new
phase that we call pseudoCP-conserving. We observe first and second-order
transitions between the various phases. At a second-order (and possibly
first-order) transition a pseudoGoldstone boson becomes massless as a
consequence of a spontaneous change in the discrete, but not the continuous,
symmetry of the ground state. We relate the masslessness of these ``accidental
Goldstone bosons'' (AGBs) bosons to singularities of the order parameter for
the phase transition. The relative frequency of CP-phase transitions makes it
commonplace for the AGBs to be light, much lighter than their underlying strong
interaction scale. We investigate the AGBs' potential for serving as light
composite Higgs bosons by studying their vacuum expectation values, finding
promising results: AGB vevs are also often much less than their strong scale.


title:
Power-Spectrum Analyses of Super-Kamiokande Solar Neutrino Data:
  Variability and its Implications for Solar Physics and Neutrino Physics

abstract:
  There have been conflicting claims as to whether or not power-spectrum
analysis of the Super-Kamiokande solar neutrino data yields evidence of
variability. Comparison of these claims is complicated by the fact that the
relevant articles may use different datasets, different methods of analysis,
and different procedures for significance estimation. The purpose of this
article is to clarify the role of power spectrum analysis. To this end, we
analyze only the Super-Kamiokande 5-day dataset, and we use a standard
procedure for significance estimation proposed by the Super-Kamiokande
collaboration. We then analyze this dataset, with this method of significance
estimation, using six methods of power spectrum analysis. We find that the
significance of the principal peak in the power spectrum (that at 9.43 yr-1with
a depth of modulation of 7%) shows a clear correlation with the amount and
relevance of the information being processed, as would be expected if there
were a real signal in the data. The significance level reaches 99.3% for one
method of analysis. We discuss, in terms of sub-dominant processes, possible
neutrino-physics interpretations of the apparent variability of the
Super-Kamiokande measurements, and we suggest steps that could be taken to
resolve the question of variability of the solar neutrino flux.


title: New Reactor Neutrino Experiments besides Double-CHOOZ

abstract:
  Several new reactor neutrino experiments are being considered to measure the
parameter theta-13. The current plans for Angra, Braidwood, Daya Bay, KASKA and
KR2DET are reviewed. A case is made that, together with Double-CHOOZ, a future
world program should include at least three such experiments.


title:
BtoVVana: the package for analysis of $B_s^0\to J/\psi\phi$ and
  $B_d^0\to J/\psi K^*$ decays

abstract:
  C++ package {\tt BtoVVana} is aimed to extract physics parameters in decays
of the scalar neutral B-meson to two vector particles in the intermediate
state, and two leptons and two pseudoscalar mesons in the final state. Improved
angular moments method is implemented in the package {\tt BtoVVana}: the method
uses the time dependent weighting functions and time-integrated observables
with variable upper time limit. These observables allow to keep full time
informative contents of the decay. By using the package {\tt BtoVVana} it was
shown that the statistical errors of extraction of the observables strongly
depends on the choice of the angular weighting functions. The best angular
weighting functions, which are the linear combinations of the amplitude angular
functions, are implemented in the package {\tt BtoVVana}. The first version of
the program contains algorithms to extract physics parameters in the case of
untagged decays. The package {\tt BtoVVana} and program codes for the channels
$B_s^0\to J/\psi\phi$ and $B_d^0\to J/\psi K^*$ in the Monte Carlo generator
{\tt SIMUB} were written in parallel and mutually tested with high precision.


title:
Strange Quark, Tachyonic Gluon Masses and V_{us} from Hadronic Tau
  Decays

abstract:
  We apply, to the new OPAL data on V+A strange spectral functions, a suitable
combination of QCD spectral sum rules directly sensitive to the combination of
strange quark (m_s) and tachyonic gluon (\lambda^2) masses . Using the mean
value of \lambda^2 from a sum rule analysis of different channels, we deduce
the invariant strange quark mass m_s= (106 +33 -37) MeV to order \alpha_s^3,
which leads to the running mass m_s(2 GeV)= (93 +29 -32) MeV. We also obtain an
interesting though less competitive estimate of the CKM angle:
|V_{us}|=0.217\pm 0.019.


title: Why pentaquarks are seen in some experiments and not in others

abstract:
  The $\Theta^+$ Pentaquark is a Very narrow $\Gamma \approx 1$ MeV
  KN Resonance. Why do some experiments see it and others do not? The lowest
quark configuration that can describe it is exotic $uudd \bar s$.
  Why have no exotics been seen before?
  Is this the beginning of a new spectroscopy? Can it help toteach us about How
QCD makes hadrons from quarks and gluons?


title: Anisotropic scalar field emission from TeV scale black hole

abstract:
  Black holes are predicted to be copiously produced at the CERN Large Hadron
Collider in the scenarios of TeV scale gravity. We report recent progress in
studying decay of such a higher dimensional black hole in D=4+n dimensions
through the Hawking radiation into brane localized fields taking into account
its angular momentum which is indispensable for realistic simulations.
Presented is the greybody factors for a scalar field emission, which confirms
our previous results in low energy approximation: (i) the existence of
super-radiance modes and (ii) the non-trivial angular distribution of radiated
scalar field. Phenomenological implications and future plans are discussed.


title: Asymmetry and Minimality of Quark Mass Matrices

abstract:
  We systematically investigate general forms of mass matrices for
three-generation up and down quarks, including asymmetrical ones in generation
space. Viable zero matrix elements are explored which are compatible with the
current observation of masses and mixing angles, and also with the recent
measurement of CP violation in the B-meson system. The simplest form with the
maximal number of vanishing matrix elements is found to be almost consistent
with the experimental data, but has a scratch that one of the mixing angle is
slightly large. At the next-to-minimal level, it is found with a help of
leptonic generation mixing that only six patterns of mass matrices well
describe the experimental data. These sets of mass textures predict all the
properties of quarks, including the CP violation, as well as the large
(charged) lepton mixing, which may be appropriate for the atmospheric neutrino
in grand unification scheme.


title: Double Transverse Spin Asymmetries at Next-to-leading Order in QCD

abstract:
  We present a technique to calculate the cross sections and spin asymmetries
for transversely polarized $pp$ collisions at NLO in QCD and report on the use
of this technique for the processes $p^{\uparrow} p^{\uparrow} \to \gamma X$,
$p^{\uparrow} p^{\uparrow} \to \pi X$ and $p^{\uparrow} p^{\uparrow} \to l^+
l^- X$.


title: Quasi-Particle Excitations of the Higgs Vacuum at Finite Energy Density

abstract:
  Real time excitations in the broken symmetry phase of the classical Abelian
Higgs model are investigated numerically in the unitary gauge. Spectral
equations of state of its constituent quasi-particles are extracted.
Characteristic differences between the statistical correlations of the
transverse and of the longitudinal vector modes with the Higgs field are
exposed. A method is proposed for the reconstruction of the quasi-free
composite field coordinates.


title: Flow effects on jet profiles and multiplicities

abstract:
  We study the effects of low-$p_T$ collective flow on radiative energy loss
from high-$p_T$ partons traversing the QCD medium created in high-energy
nucleus-nucleus collisions. We illustrate this idea through three examples. Due
to longitudinal flow, jet profiles at the LHC present marked asymmetries in the
$\eta\times \phi$-plane, and widths in $\eta$ and $\phi$ of particle
distributions associated with a high-$p_T$ trigger at RHIC become different.
Finally, transverse flow implies an increase of high-$p_T$ $v_2$ at RHIC.


title: Jet evolution and Monte Carlo

abstract:
  In this lecture I discuss jet-shape distributions and describe how from jet
evolution one may design Monte Carlo simulations which are used in the analysis
of short distance distributions in $\ee$-annihilation, lepton-hadron and
hadron-hadron collisions


title:
Background for Terrestrial Antineutrino Investigations: Radionuclide
  Distribution, Georeactor Fission Events, and Boundary Conditions on Fission
  Power Production

abstract:
  Estimated masses of fissioning and non-fissioning radioactive elements and
their respective distributions within the Earth are presented, based upon the
fundamental identity of the components of the interior 82% of the Earth, the
endo-Earth, with corresponding components of the Abee enstatite chondrite
meteorite. Within limits of existing data, the following generalizations
concerning the endo-Earth radionuclides can be made: (1) Most of the K-40 may
be expected to exist in combination with oxygen in the silicates of the lower
mantle, perhaps being confined to the upper region of the lower mantle where it
transitions to the upper mantle; (2) Uranium may be expected to exist at the
center of the Earth where it may undergo self-sustaining nuclear fission chain
reactions, but there is a possibility that some non-fissioning uranium may be
found scattered diffusely within the core floaters which are composed of CaS
and MgS; and, (3) Thorium may be expected to occur within the core floaters at
the core-mantle boundary, although its presence as well at the center of the
Earth cannot be ruled out. Results of nuclear georeactor numerical simulations
show: (1) The maximum constant nuclear fission power level is 30 terawatts; (2)
U-235 comprises 76 percent of present-day georeactor fission, U-238 comprises
23 percent; and, (3) Thorium can neither be fuel nor converted into fuel for
the georeactor.


title: Quark-hadron duality in electron scattering

abstract:
  The duality between partonic and hadronic descriptions of physical phenomena
is one of the most remarkable features of strong interaction physics. A classic
example of this is in electron-nucleon scattering, in which low-energy cross
sections, when averaged over appropriate energy intervals, are found to exhibit
the scaling behavior expected from perturbative QCD. We present a comprehensive
review of data on structure functions in the resonance region, from which the
global and local aspects of duality are quantified, including its flavor, spin
and nuclear medium dependence. To interpret the experimental findings, we
discuss various theoretical approaches which have been developed to understand
the microscopic origins of quark-hadron duality in QCD. Examples from other
reactions are used to place duality in a broader context, and future
experimental and theoretical challenges are identified.


title: Chiral symmetry breaking from five dimensional spaces

abstract:
  Based on the AdS/CFT correspondence we study the breaking of the chiral
symmetry in QCD using a simple five dimensional model. The model gives definite
predictions for the spectrum of vector mesons, their decay constants and
interactions as a function of one parameter related to the quark condensate. We
calculate the coefficients $L_i$ of the low-energy QCD chiral lagrangian, as
well as other physical quantities for the pions. All the predictions are shown
to be in good agreement with the experimental data. We also show that they are
robust under modifications of the 5D metric in the IR, and that some of them
arise as a consequence of the higher-dimensional gauge symmetry. For example,
at the tree-level, we find $M_\rho \simeq \sqrt{3} g_{\rho\pi\pi} F_\pi$,
$F_\rho\simeq \sqrt{3} F_\pi$ and BR($a_1\to \pi\gamma)=0$.


title: Density dependence of pion coupling, $f_\pi$, from three models

abstract:
  This paper is withdrawn by the authors, a better version is available as
hep-ph/0505139.


title: Some Recent Advances in Bound-State Quantum Electrodynamics

abstract:
  We discuss recent progress in various problems related to bound-state quantum
electrodynamics: the bound-electron g factor, two-loop self-energy corrections
and the laser-dressed Lamb shift. The progress relies on various advances in
the bound-state formalism, including ideas inspired by effective field theories
such as Nonrelativistic Quantum Electrodynamics. Radiative corrections in
dynamical processes represent a promising field for further investigations.


title: Radiative leptogenesis in minimal seesaw models

abstract:
  In the framework of seesaw models with only two heavy Majorana neutrinos,
nonzero leptonic asymmetries can be radiatively generated when exact heavy
neutrino mass degeneracy ($M_1=M_2=M$) is imposed at a scale $\Lambda_D > M$.
For a specific case, we show that an acceptable value for the baryon asymmetry
of the Universe can be obtained considering thermal leptogenesis.


title:
Production of Forward Rapidity Photons in High Energy Heavy Ion
  Collisions

abstract:
  We consider production of prompt photons in high energy gold-gold and
deuteron-gold collisions in the forward rapidity region of RHIC ($y \sim 3.8$).
In this kinematics, the projectile partons typically have large $x_{bj}$ while
the target partons are mostly at very small $x_{bj}$ so that the primary
partonic collisions involve valence quarks from the projectile and gluons from
the target. We take the target nucleus to be a Color Glass Condensate while the
projectile deuteron or nucleus is treated as a dilute system of partons. We
show that the photon production cross section can be written as a convolution
of a quark-nucleus scattering cross section, involving a quark anti-quark
dipole, with the Leading Order quark-photon fragmentation function. We consider
different models of the quark anti-quark dipole and show that measurement of
photons in the forward rapidity region at RHIC can distinguish between
different parameterizations of the dipole cross section as well as help clarify
the role of parton coalescence models in hadron production at RHIC.


title: Operator Analysis for Proton Decay in SUSY SO(10) GUT Models

abstract:
  Non-renormalizable operators both account for the failure of down quark and
charged lepton Yukawa couplings to unify and reduce the proton decay rate via
dimension-five operators in minimal SUSY SU(5) GUT. We extend the analysis to
SUSY SO(10) GUT models.


title: Baryon resonances from chiral coupled-channel dynamics

abstract:
  We discuss the formation of s- and d-wave baryon resonances as predicted by
the chiral SU(3) symmetry of QCD. Based on the leading order term of the chiral
Lagrangian a rich spectrum of molecules is generated, owing to final-state
interactions. The spectrum of s- and d-wave baryon states with zero and
non-zero charm is remarkably consistent with the empirical pattern. In
particular, the recently announced Sigma_c(2800) of the BELLE collaboration is
reproduced with realistic mass and width parameters. Similarly, the d-wave
states Lambda_c(2625) and Xi_c(2815) are explained naturally to be chiral
excitations of J^P=3/2^+ states. In the open-charm sector exotic multiplet
structures are predicted. These findings support a radical conjecture: meson
and baryon resonances that do not belong to the large-N_c ground state of QCD
should be viewed as hadronic molecular states


title:
Testing the Color Charge and Mass Dependence of Parton Energy Loss with
  Heavy-to-light Ratios at RHIC and LHC

abstract:
  The ratio of nuclear modification factors of high-pT heavy-flavored mesons to
light-flavored hadrons (``heavy-to-light ratio'') in nucleus-nucleus collisions
tests the partonic mechanism expected to underlie jet quenching. Heavy-to-light
ratios are mainly sensitive to the mass and color-charge dependences of
medium-induced parton energy loss. Here, we assess the potential for
identifying these two effects in D and B meson production at RHIC and at the
LHC. To this end, we supplement the perturbative QCD factorized formalism for
leading hadron production with radiative parton energy loss. For D meson
spectra at high but experimentally accessible transverse momentum (10 < pT < 20
GeV) in Pb-Pb collisions at the LHC, we find that charm quarks behave
essentially like light quarks. However, since light-flavored hadron yields are
dominated by gluon parents, the heavy-to-light ratio of D mesons is a sensitive
probe of the color charge dependence of parton energy loss. In contrast, due to
the larger b quark mass, the medium modification of B mesons in the same
kinematical regime provides a sensitive test of the mass dependence of parton
energy loss. At RHIC energies, the strategies for identifying and disentangling
the color charge and mass dependence of parton energy loss are more involved
because of the smaller kinematical range accessible. We argue that at RHIC, the
kinematical regime best suited for such an analysis of D mesons is 7 < pT < 12
GeV, whereas the study of lower transverse momenta is further complicated due
to the known dominant contribution of additional, particle species dependent,
non-perturbative effects.


title: Unified Parametrization of Quark and Lepton Mixing Matrices

abstract:
  We present a unified parametrization of quark and lepton mixing matrices. By
using some simple relations between the mixing angles of quarks and leptons,
i.e., the quark-lepton complementarity, we parametrize the lepton mixing matrix
with the Wolfenstein parameters $\lambda$ and $A$ of the quark mixing matrix.
It is shown that the Wolfenstein parameter $\lambda$ can measure both the
deviation of the quark mixing matrix from the unit matrix, and the deviation of
the lepton mixing matrix from the exactly bimaximal mixing pattern.


title: Signal of Theta^+ in quenched lattice QCD with exact chiral symmetry

abstract:
  We investigate the mass spectrum of the pentaquark baryon ($ udud \bar s $)
in quenched lattice QCD with exact chiral symmetry. Using 3 different
interpolating operators, we measure their $ 3 \times 3 $ correlation matrix and
obtain the eigenvalues $ A^{\pm} (t) $ with $ \pm $ parity, for 100 gauge
configurations generated with Wilson gauge action at $ \beta = 6.1 $ on the $
20^3 \times 40 $ lattice. For the lowest-lying $ J^P = 1/2^- $ state, its
effective mass is almost identical to that of the KN s-wave, while for the
lowest-lying $ J^P = 1/2^+ $ state, its effective mass is smaller than that of
the KN p-wave, especially for the regime $ m_u < m_s $. By chiral extrapolation
(linear in $m_\pi^2$) to $ m_\pi = 135 $ MeV, we obatin the masses of the
lowest-lying states: $ m(1/2^-) = 1424(57) $ MeV and $ m(1/2^+) = 1562(121) $
MeV, in agreement with the masses of $ m_K + m_N \simeq 1430 $ MeV and $
\Theta^+(1540) $ respectively.


title:
Enhancement of lepton flavor violation in a model with bi-maximal mixing
  at the grand unification scale

abstract:
  We study phenomenological predictions in the scenario with the
quasi-degenerate relation among neutrino Dirac masses, m_D1 simeq m_D2 < m_D3,
assuming the bi-maximal mixing at the grand unification scale in supersymmetric
standard models with right-handed neutrinos. A sufficient lepton number
asymmetry can be produced for successful leptogenesis. The lepton flavor
violating process mu to e gamma can be enhanced due to the Majorana phase, so
that it can be detectable at forthcoming experiments. The processes tau to e
gamma and tau to mu gamma are suppressed because of the structure of neutrino
Dirac masses, and their branching ratios are smaller than that of mu to e
gamma.


title: Transverse momentum resummation in soft-collinear effective theory

abstract:
  We present a universal formalism for transverse momentum resummation in the
view of soft-collinear effective theory (SCET), and establish the relation
between our SCET formula and the well known Collins-Soper-Sterman's pQCD
formula at the next-to-leading logarithmic order (NLLO). We also briefly
discuss the reformulation of joint resummation in SCET.


title:
Non-Decoupling Effects of the Heavy T in the B^0_{d,s}-\bar B^0_{d,s}
  Mixing and Rare K and B Decays

abstract:
  We point out that in the case of a heavy top quark T, present in the Littlest
Higgs model (LH), and the t-T mixing parameter x_L > 0.90 the contribution to
B^0_{d,s}-\bar B^0_{d,s} mixing from box diagrams with two T exchanges cannot
be neglected. Although formally O(v^4/f^4) with v = 246 GeV and f > 1 TeV, this
contribution increases linearly with x_T = m_T^2/M^2_W and with x_T =
O(f^2/v^2) constitutes effectively an O(v^2/f^2) correction. For x_L ~ 1, this
contribution turns out to be more important than the genuine O(v^2/f^2)
corrections. In particular it is larger than the recently calculated O(v^2/f^2)
contribution of box diagrams with a single T exchange that increases only
logarithmically with x_T. For x_L = 0.95 and f/v = 5,10,15, the short distance
function S governing the B^0_{d,s}-\bar B^0_{d,s} mixing mass differences
\Delta M_{d,s} receives 56%, 15% and 7% enhancements relative to its Standard
Model (SM) value, implying a suppression of the CKM element V_td and an
enhancement of \Delta M_s. The short distance functions X and Y, relevant for
rare K and B decays, increase only logarithmically with x_T. With the
suppressed V_td, K->\pi\nu\bar\nu and B_d->\mu^+\mu^- decays are only
insignificantly modified with respect to the SM, while the branching ratio
Br(B_s->\mu^+\mu^-) receives 66%, 19% and 9% enhancements for x_L = 0.95 and
f/v = 5,10,15, respectively. Similar enhancement is found for
Br(B_s->\mu\bar\mu)/Br(B_d->\mu\bar\mu).


title: Baryon vector and axial-vector currents in the 1/N_c expansion

abstract:
  The derivation of the 1/N_c expansions for the baryon vector and axial-vector
currents, in the SU(3) symmetry limit and including perturbative SU(3)
breaking, is reviewed. Symmetry breaking effects in the hyperon semileptonic
decay form factors are reanalyzed. Fits to experimental data yield corrections
to the leading vector and axial-vector form factors consistent with
expectations. The values of the Cabibbo-Kobayashi-Maskawa matrix elements
V_{ud} and V_{us} also extracted from the analysis are comparable to the ones
recommended by the Particle Data Group.


title: WIMP Dark Matter and the QCD Equation of State

abstract:
  Weakly Interacting Massive Particles (WIMPs) of mass m freeze out at a
temperature T_f ~ m/25, i.e. in the range 400 MeV -- 40 GeV for a particle in
the typical mass range 10 -- 1000 GeV. The WIMP relic density, which depends on
the effective number of relativistic degrees of freedom at T_f, may be measured
to better than 1% by Planck, warranting comparable theoretical precision.
Recent theoretical and experimental advances in the understanding of high
temperature QCD show that the quark gluon plasma departs significantly from
ideal behaviour up to temperatures of several GeV, necessitating an improvement
of the cosmological equation of state over those currently used. We discuss how
this increases the relic density by approximately 1.5 -- 3.5% in benchmark
mSUGRA models, with an uncertainly in the QCD corrections of 0.5 -- 1 %. We
point out what further work is required to achieve a theoretical accuracy
comparable with the expected observational precision, and speculate that the
effective number of degrees of freedom at T_f may become measurable in the
foreseeable future.


title:
Neutrino-nucleus interactions as a probe to constrain double-beta decay
  predictions

abstract:
  We propose to use charged-current neutrino-nucleus interactions as a probe of
the many virtual transitions involved in neutrinoless double-beta decay. By
performing neutrino and anti-neutrino interaction studies on the initial and
final nucleus respectively, one can get information on the two branches
involved in the double-beta decay process. The measurement of such reactions
could help to further constrain double-beta decay predictions on the
half-lives.


title:
From Color Glass Condensate to Quark Gluon Plasma through the event
  horizon

abstract:
  We propose a new thermalization scenario for heavy ion collisions which at
sufficiently high energies implies the phase transition to the quark--gluon
plasma. The key ingredient of our approach is the Hawking--Unruh effect: an
observer moving with an acceleration $a$ experiences the influence of a thermal
bath with an effective temperature $T = a / 2\pi$, similar to the one present
in the vicinity of a black hole horizon. For electric charges moving in
external electromagnetic fields of realistic strength, the resulting
temperature appears too small to be detected. However for partons in strong
color fields the effect should be observable: in the Color Glass Condensate
picture, the strength of the color-electric field is $E \sim Q_s^2/g$ ($Q_s$ is
the saturation scale, and $g$ is the strong coupling), the typical acceleration
is $a \sim Q_s$, and the heat bath temperature is $T = Q_s / 2\pi \sim 200$
MeV. In nuclear collisions at sufficiently high energies the effect can induce
a rapid thermalization over the time period of $\tau \simeq 2\pi/Q_s \simeq 1\
{\rm fm}$ accompanied by phase transitions. We consider a specific example of
chiral symmetry restoration induced by a rapid deceleration of the colliding
nuclei. We argue that parton saturation in the initial nuclear wave functions
is a necessary pre--condition for the formation of quark--gluon plasma. We
discuss the implications of our "black hole thermalization" scenario for
various observables in relativistic heavy ion collisions.


title:
Fragmentation, Factorization and Infrared Poles in Heavy Quarkonium
  Production

abstract:
  We explore the role of soft gluon exchange in heavy quarkonium production at
large transverse momentum. We find uncanceled infrared poles at NNLO that are
not matched by conventional NRQCD matrix elements. We show, however, that gauge
invariance and factorization require that conventional NRQCD production
operators be modified to include nonabelian phases or Wilson lines. With
appropriately modified operators, factorization is restored at NNLO. We also
argue that, in the absence of special cancellations, infrared poles at yet
higher orders may require the inclusion of additional nonlocal operators, not
present in the NRQCD expansion in relative veloctiy.


title:
Nucleon Edm from Atomic Systems and Constraints on Supersymmetry
  Parameters

abstract:
  The nucleon EDM is shown to be directly related to the EDM of atomic systems.
  From the observed EDM values of the atomic Hg system, the neutron EDM can be
extracted, which gives a very stringent constraint on the supersymmetry
parameters. It is also shown that the measurement of Nitrogen and Thallium
atomic systems should provide important information on the flavor dependence of
the quark EDM. We perform numerical analyses on the EDM of neutron, proton and
electron in the minimal supersymmetric standard model with CP-violating phases.
We demonstrate that the new limit on the neutron EDM extracted from atomic
systems excludes a wide parameter region of supersymmetry breaking masses above
1 TeV, while the old limit excludes only a small mass region below 1 TeV.


title: Chiral symmetry and exclusive B decays in the SCET

abstract:
  We describe a chiral formalism for processes involving both energetic hadrons
and soft Goldstone bosons, which extends the application of soft-collinear
effective theory to multibody B decays. The nonfactorizable helicity amplitudes
for heavy meson decays into multibody final states satisfy symmetry relations
analogous to the large energy form factor relations, which are broken at
leading order in Lambda/mb by calculable factorizable terms. We use the chiral
effective theory to compute the leading corrections to these symmetry relations
in B -> M_n pi ell\bar\nu and B -> M_n pi e+e- decays.


title:
Majorana Fermions and CP Violation from 5-dimensional Theories; a
  Systematic Approach

abstract:
  Within five-dimensional compactified theories we discuss generalized
periodicity and orbifold boundary conditions that allow for mixing between
particles and anti-particles after a shift by the size of extra dimensions or
after the orbifold reflection. A systematic strategy for constructing
4-dimensional models is presented, in particular we find a general form of the
periodicity and orbifold conditions that are allowed by consistency
requirements. We formulate general conditions for a presence of massless
Kaluza-Klein modes and discuss remaining gauge symmetry of the zero-mode
sector. It is shown that if the orbifold twist operation transforms particles
into anti-particles then the zero-mode fermions are 4-dimensional Majorana
fermions. The possibility of explicit and spontaneous CP violation is
discussed. General considerations are illustrated by many Abelian and
non-Abelian examples.


title: Confinement of the Field Angular Momentum

abstract:
  It is shown that the quantum SU(3) gauge theory can be approximately reduced
to U(1) gauge theory with broken gauge symmetry and interacting with scalar
fields. The scalar fields are some approximation for 2 and 4-points Green's
functions of $A^{1, ..., 7}_\mu$ gauge potential components. Remaining gauge
potential component $A^8_\mu$ is the potential for U(1) Abelian gauge theory.
It is shown that reduced field equations have a regular solution. The solution
presents a quantum bag in which $A^8_\mu$ color electromagnetic field is
confined. This field produces a field angular momentum which can be equal to
$\hbar$. It is supposed that the obtained solution can be considered as a model
of glueball with spin $\hbar$. In this model the glueball has an asymmetry. The
same asymmetry can have the nucleon that may be measured experimentally.


title: Smallness of Baryon Asymmetry from Split Supersymmetry

abstract:
  The smallness of the baryon asymmetry in our universe is one of the greatest
mysteries and may originate from some profound physics beyond the standard
model. We investigate the Affleck-Dine baryogenesis in split supersymmetry, and
find that the smallness of the baryon asymmetry is directly related to the
hierarchy between the supersymmetry breaking squark/slepton masses and the weak
scale. Put simply, the baryon asymmetry is small because of the split mass
spectrum.


title: Transition radiation in the quantum regime as a diffractive phenomenon

abstract:
  We demonstrate that the transition photon radiation and pair creation can be
interpreted as a diffractive phenomenon in terms of the light-cone wave
functions in a way similar to the Good-Walker approach [6] to the diffraction
dissociation. Our formulas for spectra agree with those obtained by Baier and
Katkov [5] within the quasiclassical operator method. However, there is some
disagreement with earlier results by Garibyan [4].


title:
Vector meson electroproduction at small Bjorken-x and generalized parton
  distributions

abstract:
  We analyze electroproduction of light vector mesons at small Bjorken-x in an
approach that includes the gluonic generalized parton distributions and a
partonic subprocess, gamma g --> (q q-bar) g, q q-bar --> V. The subprocess is
calculated to lowest order of perturbative QCD taking into account the
transverse momenta of the quark and antiquark as well as Sudakov suppressions.
Our approach allows to investigate the transition amplitudes for all kind of
polarized virtual photons and polarized vector mesons. Modelling the
generalized parton distributions through double distributions and using simple
Gaussian wavefunctions for the vector mesons, we compute the longitudinal and
transverse cross sections at large photon virtualities as well as the spin
density matrix elements for the vector mesons. Our results are in fair
agreement with the findings of recent experiments performed at HERA.


title: Z-Scaling and Inclusive Particle Production in p-p Collisions at High-pT

abstract:
  The properties of particle production in pp collisions are basis for analysis
of pA and AA interactions and verification of theory. We analyzed inclusive
particle production using z-scaling established in proton-proton and
proton-antiproton collisions at the U70, ISR, Tevatron and RHIC. This scaling
reflects symmetry of hadron structure, interaction and particle formation. It
is shown that new data on charged hadron and pi0-meson spectra obtained in pp
collisions at the Relativistic Heavy Ion Collider confirm the z-scaling.


title: See-saw and grand unification

abstract:
  I review the profound connection between the see-saw mechanism for neutrino
masses and grand unification. This connection points naturally towards SO(10)
grand unified theory. The emphasis here is on the supersymmetric theory, but I
also discuss salient features of its split supersymmetry version and ordinary
non-supersymmetric SO(10). Particular attention is paid to the crucial issue of
the minimal such theory, i.e. the question of the Higgs sector needed to break
SO(10) down to the Minimal Supersymmetric Standard Model or the Standard Model.
Some essential features of the see-saw mechanism are clarified, in particular
its precise origin at the high scale.


title:
Theoretical uncertainties for measurements of alpha_s from electroweak
  observables

abstract:
  One of the most precise measurements of the strong coupling constant
alpha_s(MZ) is obtained in the context of global analyses of precision
electroweak data. This article reviews the sensitivity of different electroweak
observables to alpha_s and describes the perturbative uncertainties related to
missing higher orders. The complete renormalisation scale dependence for the
relevant observables is calculated at next-to-next-to-leading order and a new
method is presented to determine the corresponding perturbative uncertainty for
measurements of alpha_s based on these observables.


title: Electroweak Physics

abstract:
  Work on electroweak precision calculations and event generators for
electroweak physics studies at current and future colliders is summarized.


title:
Testing the LMA solution with solar neutrinos independently of solar
  models

abstract:
  We perform a comparative study of two methods of determining the survival
probabilities of low, intermediate, and high energy solar neutrinos that
emphasizes the general agreement between the Large Mixing Angle (LMA) solution
and extant solar neutrino data. The first analysis is oscillation
parameter-independent and the second analysis involves an approximate
calculation of the survival probabilities in the three energy ranges that
depends only on oscillation parameters. We show that future experiments like
BOREXino, CLEAN, Heron, LENS and MOON, that measure $pp$ and $^7$Be neutrinos,
will facilitate a stringent test of the LMA solution independently of the
Standard Solar Model (SSM), without recourse to earth-matter effects.
Throughout, we describe the role of SSM assumptions on our results. If the LMA
solution passes the test without needing to be modified, it may be possible to
establish that $\theta_x$ is nonzero at more than $2\sigma$ assuming the SSM
prediction for the $pp$ flux is correct.


title:
Dual Lepton Mass-Degeneracy-Deviation Quantities, Quasi-Degenerate
  Neutrinos and the Low Energy Fine Structure Constant

abstract:
  Exponential lepton flavor mass-ratio phenomenology with an extreme value
problem for the neutrinos predicts small Quasi-Degenerate (QD) neutrino masses,
m =(0.14-0.30)eV at 99% CL, and small solar-atmospheric oscillation hierarchy
parameter, compatible with neutrino mass and oscillation data. An attempt is
made to discover the physical meaning of the exponential exp5 which emerges as
an empirical parameter in that description. Accurate relations between the data
value of the fine structure constant and integer 5 are observed starting with a
bare value exp(-5). This value as a physical constant unifies dimensionless low
energy gauge and Higgs-scalar coupling constants of the lepton
electroweak-theory-sector and QD-neutrino mass ratios in conformity with
duality and hierarchy rules in the discussed phenomenology of lepton flavor
physics.


title: Neutrinos in a fluctuating plasma and the solar neutrino puzzle

abstract: This paper has been withdrawn by the author.


title: Reactor measurement of \theta_{12}; Secret of the power

abstract:
  We demonstrate enormous power of dedicated reactor experiment for \theta_{12}
with a detector placed at around the first oscillation maximum, which we call
"SADO". It allows determination of sin^2\theta_{12} to the accuracy of \simeq
2% at 1 \sigma CL, which surpasses all the method so far proposed. Unlike
reactor \theta_{13} experiments, the requirement for the systematic error is
very mild, \simeq 4%, which makes it an even more feasible experiment. If we
place a detector at \sim 60 km away from the Kashiwazaki-Kariwa nuclear power
plant, 0.5 kt yr exposure of SADO is equivalent to \sim 100 kt yr exposure of
KamLAND assuming the same systematic error.


title:
Abelian family symmetries and the simplest models that give theta13=0 in
  the neutrino mixing matrix

abstract:
  I construct predictive models of neutrino mass and mixing that have fewer
parameters, both in the lepton sector and overall, than the default seesaw
model. The predictions are theta13=0 and one massless neutrino, with the models
having a Z4 or Z2 symmetry and just one extra degree of freedom: one real
singlet Higgs field. It has been shown that models with an unbroken family
symmetry, and with no Higgs fields other than the Standard Model Higgs doublet
produce masses and mixing matrices that have been ruled out by experiment.
Therefore, this article investigates the predictions of models with Abelian
family symmetries that involve Higgs singlets, doublets and triplets, in the
hope that they may produce the maximal and minimal mixing angles seen in the
best fit neutrino mixing matrix. I demonstrate that these models can only
produce mixing angles that are zero, maximal or unconfined by the symmetry. The
maximal mixing angles do not correspond to physical mixing, so an Abelian
symmetry can, at best, ensure that theta13=0, while leaving the solar and
atmospheric mixing angles as free parameters. To generate more features of the
best-fit mixing matrix a model with a non-Abelian symmetry and a complicated
Higgs sector would have to be used.


title: Quarkonium-Hadron Interactions in Perturbative QCD

abstract:
  The next to leading order (NLO) quarkonium-hadron cross section is calculated
in perturbative QCD. The corresponding leading order (LO) result was performed
by Peskin more than 20 years ago using the operator product expansion (OPE). In
this work, the calculation is performed using the Bethe-Salpeter amplitude and
the factorization formula. The soft divergence appearing in the intermediate
stages of the calculations are shown to vanish after adding all possible
crossed terms, while the collinear divergences are eliminated by mass
factorization. Applying the result to the Upsilon system, one finds that there
are large higher order correction near the threshold. The relevance of the
present result to the charmonium case is also discussed.


title: $B\to f_0(980)K$ Decays and Subleading Corrections

abstract:
  The decay $B\to f_0(980)K is studied within the framework of QCD
factorization and the two-quark scenario for $f_0(980)$. There are two distinct
penguin contributions and their interference depends on the unknown mixing
angle $\theta$ of strange and nonstrange quark contents of $f_0(980)$:
destructive for $0<\theta<\pi/2$ and constructive for $\pi/2<\theta<\pi$. The
QCD sum rule method is applied to evaluate the leading-twist light-cone
distribution amplitudes and the scalar decay constant of $f_0$. We conclude
that the short-distance approach is not adequate to explain the observed large
rates of $f_0K^-$ and $f_0\ov K^0$. Among many possible subleading corrections,
we study and estimate the contributions from the three-parton Fock states of
the $f_0$ and from the intrinsic gluon inside the $B$ meson. It is found that
the spectator gluon of the $B$ meson may play an eminent role for the
enhancement of $f_0(980)K$. We point out that if $f_0(980)$ is a four-quark
state as widely perceived, there will exist extra diagrams contributing to
$B\to f_0(980)K$. However, in practice it is difficult to make quantitative
predictions based on the four-quark picture for $f_0(980)$ as it involves
additional nonfactorizable contributions that are difficult to estimate and the
calculations of the decay constant and form factors of $f_0(980)$ are beyond
the conventional quark model.


title: Strongly Coupled Gauge Mediation

abstract:
  A model of gauge mediation with the gravitino mass of order 1eV is considered
to motivate 100TeV colliders. Massive mediators with standard-model and
supersymmetry-breaking gauge quantum numbers let low-scale dynamics induce
sizable soft masses of the standard-model superpartners. We circumvent
potential phenomenological difficulties that such low-scale models tend to
cause.


title: Large Angle Hadron Correlations from Medium-Induced Gluon Radiation

abstract:
  Final state medium-induced gluon radiation in ultradense nuclear matter is
examined and shown to favor large angle emission when compared to vacuum
bremsstrahlung due to the suppression of collinear gluons. Perturbative
expression for the contribution of its hadronic fragments to the back-to-back
particle correlations is derived. It is found that in the limit of large jet
energy loss gluon radiation determines the yield and angular distribution of |
Delta phi | > Pi/2 di-hadrons to transverse momenta pT2 of the associated
particles. Clear transition from enhancement to suppression of the away-side
hadron correlations is established at moderate pT2 and its experimentally
accessible features are predicted versus the trigger particle momentum pT1.


title: Synergy between the LHC and the ILC

abstract:
  In this talk I explain in brief the motivations behind undertaking a study of
the LHC-ILC interplay. I will give information about the activities of the
LHC-LC study group as well as the study group document. I will illustrate the
scope of the document by taking a few examples from the document which has
appeared on the archives \cite{Group:2004hn} since this talk was presented.


title:
On the quark distribution in an on-shell heavy quark and its all-order
  relations with the perturbative fragmentation function

abstract:
  I present new results on the quark distribution in an on-shell heavy quark in
perturbative QCD and explore its all-order relations with heavy-quark
fragmentation. I first compute the momentum distribution function to all orders
in the large-beta_0 limit and show that it is identical to the perturbative
heavy-quark fragmentation function in the same approximation. I then analyze
the Sudakov limit of the distribution and the fragmentation functions using
Wilson lines and prove that the corresponding Sudakov exponents in the
non-Abelian theory are the same to any logarithmic accuracy. The anomalous
dimension is then determined to two-loop order, corresponding to
next-to-next-to-leading logarithmic accuracy in the exponent, in two ways: the
first by extracting the singular terms from a recent calculation of the
fragmentation function and the second by performing the two-loop Wilson-line
calculation in configuration space. I find perfect agreement between the two.


title:
Threshold Resummation for the Inclusive-Hadron Cross-Section in pp
  Collisions

abstract:
  We study the resummation of large logarithmic perturbative corrections to the
partonic cross sections relevant for the process pp->h X at high transverse
momentum of the hadron h. These corrections arise near the threshold for the
partonic reaction and are associated with soft-gluon emission. We perform the
resummation to next-to-leading logarithmic accuracy. We present numerical
results for the fixed-target regime and find enhancements over the
next-to-leading order cross section, which significantly improve the agreement
between theoretical predictions and data. We also apply the resummation for
RHIC kinematics and find that subleading terms appear to play a rather
important role here.


title:
Displacement Operator Formalism for Renormalization and Gauge Dependence
  to All Orders

abstract:
  We present a new method for determining the renormalization of Green
functions to all orders in perturbation theory, which we call the displacement
operator formalism, or the D-formalism, in short. This formalism exploits the
fact that the renormalized Green functions may be calculated by displacing by
an infinite amount the renormalized fields and parameters of the theory with
respect to the unrenormalized ones. With the help of this formalism, we are
able to obtain the precise form of the deformations induced to the Nielsen
identities after renormalization, and thus derive the exact dependence of the
renormalized Green functions on the renormalized gauge-fixing parameter to all
orders. As a particular non-trivial example, we calculate the gauge-dependence
of $\tan\beta$ at two loops in the framework of an Abelian Higgs model, using a
gauge-fixing scheme that preserves the Higgs-boson low-energy theorem for
off-shell Green functions. Various possible applications and future directions
are briefly discussed.