title:
Possible Observation of Nuclear Reactor Neutrinos Near the Oscillation
  Absolute Minimum

abstract:
  After a summary of the basic three neutrino oscillation formalism we review
briefly our present empirical knowledge of the oscillation parameters and
conclude that the 2-neutrinos model is adequate to describe the survival
probability of the electronic neutrino P(nue->nue). Then we proceed to the
evaluation of P(nue->nue) relative to the antineutrinos emitted by the nuclear
power stations presently in operation along the the Rhone valley. We assume
that a detector has been installed in a existing cavity located under the Mont
Ventoux at a depth equivalent to 1500 m of water. We show that such an
experiment would provide the opportunity to observe neutrinos near the
oscillation absolute minimum. We end by a rough estimate of the counting rate.


title: Lepton flavor violation in the triplet Higgs model

abstract:
  The triplet Higgs model, which is an extension of the standard model with a
weak-scale triplet Higgs boson, is capable of generating small neutrino masses
naturally. We investigate lepton flavor violation mediated by the triplet Higgs
boson. We stress that various neutrino mass patterns could be distinguished by
measuring the lepton flavor violating processes. \mu \to eee decay is
significantly enhanced in the case of the degenerate masses or the
inverted-hierarchical masses compared with that in the case of the hierarchical
masses. On the other hand, the \mu \to e \gamma rate and the \mu - e conversion
ratio in nuclei is almost insensitive to the mass spectra. We also emphasize
that these decay rates tend to increase as the magnitude of U_{e3} increases.
Lepton flavor nonconserving \tau decay modes are expected to be unobservable at
planned experiments in the light of the current upper bounds of flavor
violating muonic decay.


title: NLO calculations of the exclusive processes in pQCD

abstract:
  We present a generally applicable reduction formalism which makes it possible
to express an arbitrary tensor and scalar one-loop Feynman integral, with N
external lines and massless propagators, in terms of a basic set of eight
fundamental scalar Feynman integrals with 2, 3, and 4 external lines, for
arbitrary external kinematics. The formalism is particularly suitable for the
NLO calculations of exclusive processes at large momentum transfer in pQCD,
where all previously developed reduction methods fail due to the presence of
collinear external on-shell lines.


title: Rationalizing right-handed neutrinos

abstract:
  A simple argument based on an SU(3) gauged horizontal symmetry is presented
that connects the explanation for three generations of matter with the
existence of a triplet of right-handed neutrinos. This rationale for
right-handed neutrinos is analogous to, but completely independent of, grand
unification or extra universal dimensions. A brief discussion of the
supersymmetrized SU(3) model is also given, pointing out that certain problems
in ordinary supersymmetric models such as fast proton decay via dimension-5
Planck-suppressed operators can be naturally solved.


title: Introductory review of cosmic inflation

abstract:
  These lecture notes provide an introduction to cosmic inflation. In
particular I will review the basic concepts of inflation, generation of density
perturbations, and reheating after inflation.


title: CP-Violation in K and B decays

abstract:
  In this article we give an overview of CP-violation for both K^0 (\bar{K}^0
), B^0 (\bar{B}^0), and B_s(\bar{B}_s) systems. Direct CP-violation and mixing
induced CP-violation are discussed for K^0(\bar{K}^0), and B^0(\bar{B}^0)
decays.


title:
Is there a dynamical group structure behind the bilarge form of neutrino
  mixing matrix?

abstract:
  We observe that the {\it invariance} of neutrino mixing matrix under the
simultaneous discrete transformations $\nu_1, \nu_2, \nu_3 \to -\nu_1, -\nu_2,
\nu_3 $ and $\nu_e, \nu_\mu, \nu_\tau \to -\nu_e, \nu_\tau, \nu_\mu $ (neutrino
"horizontal conjugation") {\it characterizes} (as a sufficient condition for
it) the familiar bilarge form of neutrino mixing matrix, favored experimentally
at present. Thus, the mass neutrinos $\nu_1, \nu_2, \nu_3 $ get a new quantum
number, {\it covariant} with respect to their mixings into the flavor neutrinos
$\nu_e, \nu_\mu, \nu_\tau $ (neutrino "horizontal parity" equal to -1, -1,1,
respectively). The "horizontal parity" turns out to be embedded in a group
structure consisting of some Hermitian and real $3\times 3$ matrices $\mu_1,
\mu_2, \mu_3 $ and $\phi_1, \phi_2, \phi_3 $, forming pairs interconnected
through neutrino mixings. They generate some discrete transformations of mass
and flavor neutrinos, respectively, in such a way that the group relations
$\mu_1 \mu_2 = \mu_3 $ (cyclic) and $\phi_1 \phi_2 = \phi_3 $ (cyclic) hold,
while $\mu_a \mu_b = \mu_b \mu_a $ and $\phi_a \phi_b = \phi_b \phi_a $. Then,
for instance, the $\mu_3$ matrix may be chosen equal to the "horizontal
parity".


title: Mirror dark matter and large scale structure

abstract:
  Mirror matter is a dark matter candidate. In this paper, we re-examine the
linear regime of density perturbation growth in a universe containing mirror
dark matter. Taking adiabatic scale-invariant perturbations as the input, we
confirm that the resulting processed power spectrum is richer than for the more
familiar cases of cold, warm and hot dark matter. The new features include a
maximum at a certain scale $\lambda_{max}$, collisional damping below a smaller
characteristic scale $\lambda'_S$, with oscillatory perturbations between the
two. These scales are functions of the fundamental parameters of the theory. In
particular, they decrease for decreasing $x$, the ratio of the mirror plasma
temperature to that of the ordinary. For $x \sim 0.2$, the scale
$\lambda_{max}$ becomes galactic. Mirror dark matter therefore leads to
bottom-up large scale structure formation, similar to conventional cold dark
matter, for $x \stackrel{<}{\sim} 0.2$. Indeed, the smaller the value of $x$,
the closer mirror dark matter resembles standard cold dark matter during the
linear regime. The differences pertain to scales smaller than $\lambda'_S$ in
the linear regime, and generally in the non-linear regime because mirror dark
matter is chemically complex and to some extent dissipative. Lyman-$\alpha$
forest data and the early reionisation epoch established by WMAP may hold the
key to distinguishing mirror dark matter from WIMP-style cold dark matter.


title:
Was ordinary matter synthesised from mirror matter? An attempt to
  explain why $\Omega_{Baryon} \approx 0.2\Omega_{Dark}$

abstract:
  The cosmological dust has begun to settle. A likely picture is a universe
comprised (predominantly) of three components: ordinary baryons ($\Omega_B
\approx 0.05$), non-baryonic dark matter ($\Omega_{Dark} \approx 0.22$) and
dark energy ($\Omega_{\Lambda} \approx 0.7$). We suggest that the observed
similarity of the abundances of ordinary baryons and non-baryonic dark matter
($\Omega_{B}/\Omega_{Dark} \approx 0.20$) hints at an underlying similarity
between the fundamental properties of ordinary and dark matter particles. This
is necessarily the case if dark matter is identified with mirror matter. We
examine a specific mirror matter scenario where $\Omega_B/\Omega_{Dark} \approx
0.20$ is naturally obtained.


title: Quark Correlations in Nucleons and Nuclei

abstract:
  A dynamical quark model of hadron and nucleus structure is proposed. In the
frame of the model, called the Strongly Correlated Quark Model, quarks and
nucleons inside nuclei are arranged in a crystal--like structure.


title: Sphaleron relaxation temperatures

abstract:
  The transition of sphaleron processes from non-equilibrium to thermal
equilibrium in the early Universe is examined in detail. The relations between
the damping rates and frequencies of the weak and QCD sphaleron degeneracy
parameters are determined in general form and the respective relaxation
temperatures are calculated in specific scenarios. It is pointed out that the
gauge coupling constants running with energy produces strong and weak sphaleron
rates closer to each other at very high temperatures and makes them larger in
supersymmetric models than in the standard model case.


title: Inflation, Large Scale Structure and Particle Physics

abstract:
  We review experimental and theoretical developments in inflation and its
application to structure formation, including the curvaton idea. We then
discuss a particle physics model of supersymmetric hybrid inflation at the
intermediate scale in which the Higgs scalar field is responsible for large
scale structure, and show how such a theory is completely natural in the
framework extra dimensions with an intermediate string scale.


title: Strange Quark Matter Theory

abstract:
  Theoretical approaches to strange and other types of quark matter accounted
for at the SQM2003 Meeting are reviewed. They range from simple statistical
models through perturbative QCD supported mico-dynamical simulations til
lattice gauge theory and astrophysics results. Finally some ideas for future
research in this field are outlined.


title: Measuring the W Boson Mass at Hadron Colliders

abstract:
  We discuss the prospects for measuring the W mass in Run II of the Tevatron
and at the LHC. The basic techniques used to measure M_W are described and the
statistical, theoretical and detector-related uncertainties are discussed in
detail.


title:
Differential Cross Sections for Higgs Boson Production at Tevatron
  Collider Energies

abstract:
  The transverse momentum $Q_T$ distribution is computed for inclusive Higgs
boson production at $\sqrt{S} = 1.96$ TeV. We include all-orders resummation of
large logarithms associated with emission of soft gluons at small $Q_T$. We
provide results for Higgs boson and $Z^*$ masses from $M_Z$ to 200 GeV. The
relatively hard transverse momentum distribution for Higgs boson production
suggests possibilities for improvement of the signal to background ratio.


title:
Polarized deep inelastic scattering at low Bjorken x and resummation of
  logarithmic corrections, $ln^2(1/x)$

abstract:
  For an accurate description of the polarized deep inelastic scattering at low
$x$ including the logarithmic corrections, $\ln^2(1/x)$, is required. These
corrections resummed strongly influence the behaviour of the spin structure
functions and their moments. Results of the work of J. Kwiecinski and myself on
this problem are reviewed.}


title: Strangeness Saturation: Dependence on System-Size, Centrality and Energy

abstract:
  The dependence of the strangeness saturation factor on the system size,
centrality and energy is studied in relativistic heavy-ion collisions.


title:
Analysis of the polarized deep inelastic scattering at low x including
  the resummation of the $\ln^2(1/x)$ corrections

abstract:
  In this thesis we consider the polarized deep inelastic scattering in the
region of low values of Bjorken variable, $x$. We formulate the evolution
equations for the unintegrated parton distributions which include a complete
resummation of the double logarithmic contributions, $\ln^2(1/x)$. Afterwards,
these equations are completed with the standard LO and NLO DGLAP evolution
terms, in order to obtain the proper behaviour of the parton distributions at
moderate and large values of $x$. The equations obtained are applied to the
following observables and processes: (i) to the nucleon structure function,
$g_1$, in the polarized deep inelastic scattering, (ii) to the structure
function of the polarized photon, $g_1^{\gamma}$, in the scattering of a lepton
on a polarized photon, and (iii) to the differential structure function, $x_J
d^2g_1/dx_J dk_J^2$, in the polarized deep inelastic scattering accompanied by
a forward jet. Case (iii) is proposed to be a test process for the presence and
the magnitude of the $\ln^2(1/x)$ contributions. For each process the
consequences of including the logarithmic corrections are studied in a detail.
After integrating out the structure function, $g_1$, the moments of the nucleon
structure function are obtained. The contribution of the region of low $x$ to
these moments is estimated, and then discussed in the context of the spin sum
rules. Finally, some predictions for the observables, the asymmetry and the
cross sections, in the processes (i)-(iii) are given. They are important to
planned experiments with the polarized HERA and linear colliders, which will
probe the region of low values of Bjorken $x$.


title: J/\psi Production in Direct and Resolved Photon Collisions

abstract:
  The production of J/Psi mesons in photon photon collisions allows for a test
of factorization in color-octet processes as predicted by NRQCD and observed at
the Tevatron. We calculate the cross sections for J/Psi production with direct
and resolved photons, including also the feed-down from chi_{cJ} and Psi'
decays. Our NRQCD predictions are nicely confirmed by recent data from the
DELPHI collaboration at CERN LEP2.


title:
On a possible measurement of alpha_s from B-Bbar correlations in Z^0
  decay

abstract:
  Motivated by recent preliminary results from the SLD Collaboration on the
measurement of angle-dependent B-Bbar energy correlations in Z^0 -> b bbar
events, we propose a class of observables that can be computed as a power
expansion in the strong coupling constant alpha_s, of order alpha_s at the Born
level and that can be used for a precision measurement of alpha_s(M_Z). We
compute their next-to-leading order O(alpha_s^2) corrections in the strong
coupling constant, including exactly quark-mass effects. We show that, in the
theoretical evaluation of these quantities, large logarithms of the ratio of
the mass of the final quark over the centre-of-mass energy cancel out. Thus,
these variables have a well-behaved perturbative expansion in alpha_s(M_Z). We
study the theoretical uncertainties due to the renormalization-scale dependence
and the quark-mass scheme and we address the question of which mass scheme is
more appropriate for these variables.


title: Hybrid Meson Potentials and the Gluonic van der Waals Force

abstract:
  The chromoelectric polarizability of mesons governs the strength of the
gluonic van der Waals force and therefore of non-quark-exchange processes in
hadronic physics. We compute the polarizability of heavy mesons with the aid of
lattice gauge theory and the Born--Oppenheimer adiabatic expansion. We find
that the operator product expansion breaks down at surprisingly large quarks
masses due to nonperturbative gluodynamics and that previous conclusions
concerning $J/\psi$--nuclear matter interactions and $J/\psi$ dissociation in
the quark-gluon plasma must be substantially modified.


title:
On the Short Distance Part of the QCD Anomaly Contribution to the b -->
  s eta' Amplitude

abstract:
  In addressing the B --> eta' K puzzle, there has been a considerable hope in
the literature to resolve it by the QCD anomaly contribution to the b --> s
eta' amplitude. This contribution corresponds to the electroweak b --> s g* g*
transition followed by the off-shell gluon fusion g* g* --> eta'. In the
present paper we perform a critical reassessment of this issue. We show that
for the hard virtual gluons in a loop there is a well defined short distance
amplitude corresponding to a remnant of the QCD anomaly. However, we find that
it cannot account for the measured amplitude.
  In addition, we point out that the reduction of the gluon fusion vertex for
the off-shell gluons is compensated by an absence of the claimed suppression in
the electroweak vertex, and that some nonperturbative contributions related to
the QCD anomaly may still be viable in explaining the physical B --> eta' K
amplitude.


title: Baryogenesis at the electroweak phase transition

abstract:
  A possible solution to the observed baryon asymmetry in the universe is
described, based on the physics of the standard model of electroweak
interactions. At temperatures high enough electroweak physics provides
violation of baryon number, while C and CP symmetries are not exactly
conserved, although in the context of the minimal electroweak model with one
Higgs doublet the rate of CP violation is not sufficient enough to generate the
observed asymmetry. The condition that the universe must be out of thermal
equilibrium requires the electroweak phase transition (EWPT) to be first order.
The dynamics of the phase transition in the minimal model is investigated
through the effective potential, which is calculated at the one loop order.
Finite temperature effects on the effective potential are treated numerically
and within the high temperature approximation, which is found to be in good
agreement with the exact calculation. At the one loop level the phase
transition was found to be of the first order, while the strength of the
transition depends on the unknown parameters of the theory which are the Higgs
boson and top quark masses.


title:
Neutrino masses from beta decays after KamLAND and WMAP (Updated
  including the NC enhanced SNO data)

abstract:
  The first data released by the KamLAND collaboration have confirmed the
strong evidence in favour of the LMA solution of the solar neutrino problem.
Taking into account the ranges for the oscillation parameters allowed by the
global analysis of the solar, CHOOZ and KamLAND data, we update the limits on
the neutrinoless double beta decay effective neutrino mass parameter and
analyze the impact of all the available data from neutrinoless double beta
decay experiments on the neutrino mass bounds, in view of the latest WMAP
results. For the normal neutrino mass spectrum the range (0.05-0.23) eV is
obtained for the lightest neutrino mass if one takes into account the
Heidelberg-Moscow evidence for neutrinoless double beta decay and the
cosmological bound. It is also shown that under the same conditions the mass of
the lightest neutrino may not be bounded from below if the spectrum is of the
inverted type. Finnaly, we discuss how future experiments can improve the
present bounds on the lightest neutrino mass set by the Troitsk, Mainz and WMAP
results. In the addendum we update the allowed ranges for the effective
Majorana neutrino mass parameter in view of the latest NC enhanced SNO data.


title: Required experimental accuracy to select between supersymmetrical models

abstract:
  We will present a method to decide a priori whether various supersymmetrical
scenarios can be distinguished based on sparticle mass data alone. For each
model, a scan over all free SUSY breaking parameters reveals the extent of that
model's physically allowed region of sparticle-mass-space. Based on the
geometrical configuration of these regions in mass-space, it is possible to
obtain an estimate of the required accuracy of future sparticle mass
measurements to distinguish between the models. We will illustrate this
algorithm with an example. This talk is based on work done in collaboration
with B.C. Allanach (LAPTH, Annecy) and F. Quevedo (DAMTP, Cambridge).


title:
An Analysis of the Inclusive Decay $\Upsilon (1S) \to \eta^\prime X$ and
  Constraints on the $\eta^\prime$-Meson Distribution Amplitudes

abstract:
  We calculate the $\eta^\prime$-meson energy spectrum in the decay $\Upsilon
(1S) \to \eta^\prime g g g \to \eta^\prime X$ in the leading-order perturbative
QCD in the static quark limit for the Orthoquarkonium. Our principal result is
the extraction of parameters of the $\eta^\prime g^* g$ effective vertex
function (EVF) involving a virtual and a real gluon from the available data on
the hard part of the $\eta^\prime$-meson energy spectrum. The perturbative QCD
based framework provides a good description of the available CLEO data,
allowing to constrain the lowest Gegenbauer coefficients $B^{(q)}_2$ and
$B^{(g)}_2$ of the quark-antiquark and gluonic distribution amplitudes of the
$\eta^\prime$-meson. The resulting constraints are combined with the existing
ones on these coefficients from an analysis of the $\eta-\gamma$ and
$\eta^\prime-\gamma$ transition form factors and the requirement of positivity
of the EVF, yielding $B^{(q)}_2(\mu_0^2) = -0.008 \pm 0.054$ and
$B^{(g)}_2(\mu_0^2) = 4.6 \pm 2.5$ for $\mu_0^2 = 2$ GeV$^2$. This reduces
significantly the current uncertainty on these coefficients. The resulting EFV
$F_{\eta^\prime g^* g} (p^2, 0, m_{\eta^\prime}^2)$, including the
$\eta^\prime$-meson mass effects, is presented.


title: Gauge Invariance in 2PI Effective Actions

abstract:
  The problem of maintaining gauge invariance in the 2PI formulation of QED is
discussed. A modified form of the 2PI effective action is suggested in which
Ward identities for external (background field) and internal (quantum field)
gauge transformations are both satisfied, but in different manners. The
residual gauge-fixing dependence in this modified 2PI formulation vanishes in a
certain low momentum limit, which allows it to be used reliably for calculating
quantities such as transport coeffcients and soft field relaxation in hot gauge
theories.


title:
Lambda_c^+/Lambda_c^- Asymmetry in Hadroproduction from Heavy-Quark
  Recombination

abstract:
  Asymmetries in the hadroproduction of charm particles directly probe power
corrections to the QCD factorization theorems. In this paper, the heavy-quark
recombination mechanism, a power correction that explains charm meson
asymmetries, is extended to charm baryons. In this mechanism, a light quark
participates in the hard scattering that creates a charm quark and they
hadronize together into a charm baryon. This provides a natural and economical
explanation for the \Lambda_c^+/\Lambda_c^- asymmetries measured in \pi N and p
N collisions.


title: Quark Matter

abstract:
  In these lectures we provide an introduction to the theory of QCD at very
high baryon density. We begin with a review of some aspects of quantum
many-body system that are relevant in the QCD context. We also provide a brief
review of QCD and its symmetries. The main part of these lectures is devoted to
the phenomenon of color superconductivity. We discuss the use of weak coupling
methods and study the phase structure as a function of the number of flavors
and their masses. We also introduce effective theories that describe low energy
excitations at high baryon density. Finally, we use effective field theory
methods in order to study the effects of a non-zero strange quark mass.


title: Vector Manifestation and Violation of Vector Dominance in Hot Matter

abstract:
  We show the details of the calculation of the hadronic thermal corrections to
the two-point functions in the effective field theory of QCD for pions and
vector mesons based on the hidden local symmetry (HLS) in hot matter using the
background field gauge. We study the temperature dependence of the pion
velocity in the low temperature region determined from the hadronic thermal
corrections, and show that, due to the presence of the dynamical vector meson,
the pion velocity is smaller than the speed of the light already at one-loop
level, in contrast to the result obtained in the ordinary chiral perturbation
theory including only the pion at one-loop. Including the intrinsic temperature
dependences of the parameters of the HLS Lagrangian determined from the
underlying QCD through the Wilsonian matching, we show how the vector
manifestation (VM), in which the massless vector meson becomes the chiral
partner of pion, is realized at the critical temperature. We present a new
prediction of the VM on the direct photon-$\pi$-$\pi$ coupling which measures
the validity of the vector dominance (VD) of the electromagnetic form factor of
the pion: We find that the VD is largely violated at the critical temperature,
which indicates that the assumption of the VD made in several analyses on the
dilepton spectra in hot matter may need to be weakened for consistently
including the effect of the dropping mass of the vector meson.


title:
New Derivation of Anomaly-Mediated Gaugino Mass in the Higher Derivative
  Regularization Method

abstract:
  The technique of higher derivative regularization is applied to the
Super-Weyl-Kahler anomaly in supergravity coupled with chiral matters and gauge
multiplet. Our method makes it possible to derive directly and diagrammatically
the formulae for the gaugino mass (in the Abelian case). Our procedure is
applied to derivation of not only the mass formulae known in the anomaly
mediation scenario, but also additional terms that depend on the Kahler
potential.


title: Chiral Perturbation Theory at Two Loops and the Measurement of $V_{us}$

abstract:
  I give an overview of the calculations done in three-flavour Chiral
perturbation theory at next-to-next-to-leading order with an emphasis on those
relevant for an improvement in the accuracy of the measurement of $V_{us}$. It
is pointed out that all needed low energy constants can be obtained from
experiment via the scalar form-factor in $K_{\ell3}$ decays


title: Chern-Simons production during preheating in hybrid inflation models

abstract:
  We study the onset of symmetry breaking after hybrid inflation in a model
having the field content of the SU(2) gauge-scalar sector of the standard
model, coupled to a singlet inflaton. This process is studied in
(3+1)-dimensions in a fully non-perturbative way with the help of lattice
techniques within the classical approximation. We focus on the role played by
gauge fields and, in particular, on the generation of Chern-Simons number. Our
results are shown to be insensitive to the various cut-offs introduced in our
numerical approach. The spectra preserves a large hierarchy between long and
short-wavelength modes during the whole period of symmetry breaking and
Chern-Simons generation, confirming that the dynamics is driven by the low
momentum sector of the theory. We establish that the Chern-Simons production
mechanism is associated with local sphaleron-like structures. The corresponding
sphaleron rates are of order 10^{-5} m^4, which, within certain scenarios of
electroweak baryogenesis and a (not unnaturally large) additional source of CP
violation, could explain the present baryon asymmetry of the universe.


title: Theoretical introduction to linear collider phyiscs

abstract:
  Physics at an e^+e^- linear collider is described as a theoretical
introduction to Linear Collider Workshop 2002.


title: A Time Variation of the QCD Coupling Constant

abstract:
  Astrophysical indications that the fine structure constant has undergone a
small time variation during the cosmological evolution are discussed within the
framework of the standard model of the electroweak and strong interactions and
of grand unification. A variation of the electromagnetic coupling constant
could either be generated by a corresponding time variation of the unified
coupling constant or by a time variation of the unification scale, or by both.
The various possibilities, differing substantially in their implications for
the variation of how energy physics parameters like the nuclear mass scale, are
discussed. The case in which the variation is caused by a time variation of the
unification scale is of special interest. It is supported in addition by recent
hints towards a time change of the proton- electron mass ratio.


title: Study of pure annihilation type decays $B \to D_s^{*} K$

abstract:
  In this work, we calculate the rare decays $B^0 \to D_s^{*-} K^+$ and $B^+
\to D_s^{*+} \bar{K}^0$ in perturbative QCD approach with Sudakov resummation.
We give the branching ratio of $10^{-5}$ for $B^0 \to D_s^{*-}K^+$, which will
be tested soon in $B$ factories.
  The decay $B^+ \to D_s^{*+} \bar{K}^0$ has a very small branching ratio at
${\cal O}(10^{-8})$, due to the suppression from CKM matrix elements $|V_{ub}^*
V_{cd}|$. It may be sensitive to new physics contributions.


title:
Supernovae and Light Neutralinos: SN1987A Bounds on Supersymmetry
  Revisited

abstract:
  For non-universal gaugino masses, collider experiments do not provide any
lower bound on the mass of the lightest neutralino. We review the
supersymmetric parameter space which leads to light neutralinos, $M_\lsp \lsim
{\cal O}(1\gev)$, and find that such neutralinos are almost pure bino. In light
of this, we examine the neutralino lower mass bound obtained from supernova
1987A (SN1987A). We consider the production of binos in both electron-positron
annihilation and nucleon-nucleon binostrahlung. For electron-positron
annihilation, we take into account the radial and temporal dependence of the
temperature and degeneracy of the supernova core. We also separately consider
the Raffelt criterion and show that the two lead to consistent results. For the
case of bino production in $NN$ collisions, we use the Raffelt criterion and
incorporate recent advances in the understanding of the strong-interaction part
of the calculation in order to estimate the impact of bino radiation on the
SN1987A neutrino signal. Considering these two bino production channels allows
us to determine separate and combined limits on the neutralino mass as a
function of the selectron and squark masses. For $M_\lsp \sim 100 \mev$ values
of the selectron mass between 300 and 900 GeV are inconsistent with the
supernova neutrino signal. On the other hand, in contrast to previous works, we
find that SN1987A provides almost no bound on the squark masses: only a small
window of values around 300 GeV can be excluded, and even then this window
closes once $M_\lsp \gsim 20 \mev$.


title: Transverse single-spin asymmetries in gauge boson production

abstract:
  Transverse single-spin asymmetries (SSA) in inclusive reactions are now
considered to be directly related to the transverse momentum $k_{T}$ of the
fundamental partons involved in the process. Several possible leading-twist QCD
mechanisms have been proposed to explain the available data, in particular the
Sivers effect which was resurrected recently. We show that from the measurement
of transverse SSA in inclusive production of gauge bosons, one can learn more
about the Sivers functions and possibly to achieve a reliable flavor
separation.


title: Late-time Entropy Production from Scalar Decay and Neutrino Decoupling

abstract:
  Late-time entropy production from scalar decay arises in scenarios like
thermal inflation, proposed to dilute long-lived, massive fields like the
gravitino and the moduli. The scalar decay may continue into Mev-scale
temperatures and affect BB nucleosynthesis. The effect of such entropy
production on electron neutrino decoupling is studied. A lower bound of about
10^(-22) Gev is estimated for the scalar decay constant, such that, for higher
values of the decay constant, standard electron neutrino decoupling is
unaffected.


title:
Twist-2 Heavy Flavor Contributions to the Structure Function
  $g_2(x,Q^2)$

abstract:
  The twist--2 heavy flavor contributions to the polarized structure function
$g_2(x,Q^2)$ are calculated. We show that this part of $g_2(x,Q^2)$ is related
to the heavy flavor contribution to $g_1(x,Q^2)$ by the Wandzura--Wilczek
relation to all orders in the strong coupling constant. Numerical results are
presented.


title: Flipped SO(10) model

abstract:
  We show that as in the flipped SU(5) models, doublet-triplet splitting is
realized by the missing partner mechanism in the flipped SO(10) models. The
gauge group $SO(10)_F\times U(1)_{V'_F}$ includes $SU(2)_E$ gauge symmetry,
that plays an important role in solving supersymmetric flavor problem by
introducing non-abelian horizontal gauge symmetry and anomalous $U(1)_A$ gauge
symmetry. The gauge group can be broken into the standard model gauge group by
VEVs of only spinor fields, such models may be easier than $E_6$ models to be
derived from the superstring theory.


title: HTL quasiparticle models of deconfined QCD at finite chemical potential

abstract:
  Using quasiparticle models and imposing thermodynamic consistency, lattice
data for the equation of state of deconfined QCD can be mapped to finite
chemical potential. We consider a refinement of existing simple massive
quasiparticle models using the non-local hard-thermal-loop (HTL) propagators,
and certain NLO corrections thereof, to obtain the thermodynamic potential as a
function of temperature and chemical potential. At small chemical potential we
find that the results for the slope of constant pressure from our main model
for 2 massless quark flavors is in good agreement with recent lattice data for
2+1 flavors while it deviates somewhat from lattice data for 2 flavors from
another group. For zero temperature, we obtain an estimate for the critical
chemical potential which is close to that obtained from simpler quasiparticle
models.


title:
Simple Cellular Model of Long-Range Multiplicity and $p_t$ Correlations
  in High-Energy Nuclear Collisions

abstract:
  A simple cellular model for the description of the long-range multiplicity
and $p_t$ correlations in high-energy nuclear collisions originating from the
string fusion model is proposed. Three versions of the model: without fusion,
with local and with global string fusion are formulated.
  A Gauss approximation which enables explicit analytical calculations of the
correlation functions in some asymptotic cases in the framework of the model is
developed. The assumptions of the model and the validity of a Gauss
approximation are checked up in the simplest (no fusion) case when the explicit
solution of the model can be found.
  The role of a size of cells is analysed. The modification of the results in
the case of non-Poissonian distributions is also discussed.


title: How far is normal nuclear matter from the chiral symmetry restoration?

abstract:
  Properties of cold nuclear matter are studied within a generalized
Nambu-Jona-Lasinio model formulated on the level of constituent nucleons. The
model parameters are chosen to reproduce simultaneously the observed nucleon
and pion masses in vacuum as well as saturation properties of nuclear matter.
The strongest constraints on these parameters are given by the empirical values
of the nucleon effective mass and compression modulus at nuclear saturation
density. A preferable value of the cut-off momentum, determining density of
active quasinucleon states in the Dirac sea, is estimated to about 400 MeV/c.
With the most reasonable choice of model parameters we have found a first order
phase transition of the liquid-gas type at subsaturation densities and the
gradual restoration of chiral symmetry at about 3 times the saturation density.
Fluctuations of the scalar condensate around its mean-field value are estimated
and shown to be large in the vicinity of chiral transition.


title: KamLAND, solar antineutrinos and the solar magnetic field

abstract:
  In this work the possibility of detecting solar electron antineutrinos
produced by a solar core magnetic field from the KamLAND recent observations is
investigated. We find a scaling of the antineutrino probability with respect to
the magnetic field profile in the sense that the same probability function can
be reproduced by any profile with a suitable peak field value. In this way the
solar electron antineutrino spectrum can be unambiguosly predicted. We use this
scaling and the negative results indicated by the KamLAND experiment to obtain
upper bounds on the solar electron antineutrino flux. We get
$\phi_{\bar\nu}<3.8\times 10^{-3}\phi(^8B)$ at 95% CL. For 90% CL this becomes
$\phi_{\bar\nu}<3.4\times 10^{-3}\phi(^8B)$, an improvement by a factor of 3-5
with respect to existing bounds. These limits are independent of the detailed
structure of the magnetic field in the solar interior. We also derive upper
bounds on the peak field value which are uniquely determined for a fixed solar
field profile. In the most efficient antineutrino producing case, we get (95%
CL) an upper limit on the product of the neutrino magnetic moment by the solar
field $\mu B< 2.8\times 10^{-19}$ MeV or $B_0 \leq 4.9 \times 10^7 G$ for
$\mu_\nu=10^{-12}\mu_B$.


title: Violation of Vector Dominance in the Vector Manifestation

abstract:
  The vector manifestation (VM) is a new pattern for realizing the chiral
symmetry in QCD. In the VM, the massless vector meson becomes the chiral
partner of pion at the critical point, in contrast with the restoration based
on the linear sigma model. Including the intrinsic temperature dependences of
the parameters of the HLS Lagrangian determined from the underlying QCD through
the Wilsonian matching together with the hadronic thermal corrections, we
present a new prediction of the VM on the direct photon-$\pi$-$\pi$ coupling
which measures the validity of the vector dominance (VD) of the electromagnetic
form factor of the pion. We find that the VD is largely violated at the
critical temperature, which indicates that the assumption of the VD made in
several analysis on the dilepton spectra in hot matter may need to be weakened
for consistently including the effect of the dropping mass of the vector meson.


title: Lepton Electric Dipole Moments from Heavy States Yukawa Couplings

abstract:
  In supersymmetric theories the radiative corrections due to heavy states
could leave their footprints in the flavour structure of the supersymmetry
breaking masses. We investigate whether present and future searches for the
muon and electron EDMs could be sensitive to the CP violation and flavour
misalignment induced on slepton masses by the radiative corrections due to the
right-handed neutrinos of the seesaw model and to the heavy Higgs triplets of
SU(5) GUT. When this is the case, limits on the relevant combination of
neutrino Yukawa couplings are obtained. Explicit analytical expressions are
provided which accounts for the dependencies on the supersymmetric mass
parameters.


title: Bilepton production in electron-gamma collisions

abstract:
  We study the production of bileptons, new gauge boson of lepton number two,
in the minimal 3 - 3 - 1 model in high energy electron - photon collisions. If
the bilepton masses are in the range of 300 GeV the reaction will give
observable cross-sections in the future colliders.


title: Coherent Photoproduction from Nuclei

abstract:
  We argue that study of the cross section of coherent photo(electro)
production of vector mesons off nuclear targets provides an effective method to
probe the leading twist hard QCD regimes of color transparency and perturbative
color opacity as well as the onset of black body limit (BBL) in the soft and
hard QCD interactions. In the case of intermediate energies we use the
Generalized Vector Dominance Model to take into account coherence effects for
two distinctive limits - the soft interactions for production of $\rho$ and
$\rho'$-mesons and the color transparency regime for production of charmonium
states. We demonstrate that GVDM describes very well $\rho$-meson coherent
photoproduction at $6 \leq E_{\gamma} \leq 10$ GeV and predict an oscillating
energy dependence for the coherent charmonium production. In the limit of small
$x$ we find that hard QCD leads to onset of the perturbative color opacity even
for production of very small onium states, like $\Upsilon$. The advantages of
the process of coherent dijet photoproduction and hard diffractive processes in
general for probing the onset of BBL and measuring the light-cone wave function
of the photon in a hard scattering regime where decomposition over twists
becomes inapplicable are explained. We apply this analysis to the study of the
photon induced coherent processes in Ultra Peripheral Collisions of ions at LHC
and demonstrate that the counting rates will be sufficient to study the physics
of color opacity and color transparency at the energies beyond the reach of the
electron-nucleon(nucleus) colliders.


title:
Infrared cutoff dependence of the critical flavor number in
  three-dimensional QED

abstract:
  We solve, analytically and numerically, a gap equation in parity invariant
QED_3 in the presence of an infrared cutoff \mu and derive an expression for
the critical fermion number N_c as a function of \mu. We argue that this
dependence of N_c on the infrared scale might solve the discrepancy between
continuum Schwinger-Dyson equations studies and lattice simulations of QED_3.


title:
Updated Reach of the CERN LHC and Constraints from Relic Density, b->s
  gamma and a(mu) in the mSUGRA Model

abstract:
  {We present an updated assessment of the reach of the CERN LHC pp collider
for supersymmetric matter in the context of the minimal supergravity (mSUGRA)
model. In addition to previously examined channels, we also include signals
with an isolated photon or with a leptonically decaying Z boson. For an
integrated luminosity of 100 fb^{-1}, values of m_{1/2}\sim 1400 GeV can be
probed for small m_0, corresponding to a gluino mass of m_{\tg}\sim 3 TeV. For
large m_0, in the hyperbolic branch/focus point region, m_{1/2}\sim 700 GeV can
be probed, corresponding to m_{\tg}\sim 1800 GeV. We also map out parameter
space regions preferred by the measured values of the dark matter relic
density, the b\to s\gamma decay rate, and the muon anomalous magnetic moment
a_\mu, and discuss how SUSY might reveal itself in these regions. We find the
CERN LHC can probe the entire stau co-annihilation region and also most of the
heavy Higgs annihilation funnel allowed by WMAP data, except for some range of
large m_0 and m_{1/2} if \tan\beta \agt 50.


title:
Total Cross Section, Inelasticity and Multiplicity Distributions in
  Proton -- Proton Collisions

abstract:
  Multiparticle production in high energy proton -- proton collisions has been
analysed in the frame of Strongly Correlated Quark Model (SCQM) of the hadron
structure elaborated by the author. It is shown that inelasticity decreases at
high energies and this effect together with the total cross section growth and
the increasing with collision energy the masses of intermediate clusters result
in the violation of KNO -- scaling.


title: An operator representation for Matsubara sums

abstract:
  In the context of the imaginary-time formalism for a scalar thermal field
theory, it is shown that the result of performing the sums over Matsubara
frequencies associated with loop Feynman diagrams can be written, for some
classes of diagrams, in terms of the action of a simple linear operator on the
corresponding energy integrals of the Euclidean theory at T=0. In its simplest
form the referred operator depends only on the number of internal propagators
of the graph.
  More precisely, it is shown explicitly that this \emph{thermal operator
representation} holds for two generic classes of diagrams, namely, the
two-vertex diagram with an arbitrary number of internal propagators, and the
one-loop diagram with an arbitrary number of vertices.
  The validity of the thermal operator representation for diagrams of more
complicated topologies remains an open problem. Its correctness is shown to be
equivalent to the correctness of some diagrammatic rules proposed a few years
ago.


title:
Three family $Z_3$ orbifold trinification, MSSM and doublet-triplet
  splitting problem

abstract:
  A $Z_3$ orbifold compactification of $E_8\times E_8^\prime$ heterotic string
is considered toward a trinification $SU(3)^3$ with three light families. The
GUT scale VEV's of the $SU(2)_W\times U(1)_Y\times SU(3)_c$ singlet chiral
fields in two sets of the trinification spectrum allow an acceptable symmetry
breaking pattern toward MSSM. We show that a doublet-triplet splitting is
related to the absence of a $\Delta B$ nonzero operator.


title: Collider Phenomenology for models of extra dimensions

abstract:
  In this talk, we summarize the collider phenomenology and recent experimental
results for various models of extra dimensions, including the large extra
dimensions (ADD model), warped extra dimensions (Randall-Sundrum model),
TeV$^{-1}$-sized extra dimensions with gauge bosons in the bulk, universal
extra dimensions, and an 5D SU(5) SUSY GUT model in AdS space.


title: Electroweak Symmetry Breaking via Bose-Einstein Mechanism

abstract:
  Recently the Bose-Einstein phenomenon has been proposed as possible physical
mechanism underlying the spontaneous symmetry breaking in cold gauge theories.
The mechanism is natural and we use it to drive the electroweak symmetry
breaking. It can be implemented in different ways while here we present a
simple model in which the Bose-Einstein sector is felt only indirectly by all
of the standard model fields. The structure of the corrections due to the new
mechanism is general and independent on the model used here leading to
experimental signatures which can be disentangled from other known extensions
of the standard model.


title:
\tau\to \mu \bar{\nu_i} \nu_i decay in the general two Higgs doublet
  model

abstract:
  We study \tau\to \mu \bar{\nu_i} \nu_i, i=e,\mu,\tau decay in the model III
version of the two Higgs doublet model. We calculated the BR at the order of
the magnitude of 10^{-6}-10^{-4} for the intermediate values of the Yukawa
couplings. Furthermore, we predict the upper limit of the coupling for the
\tau-h^0 (A^0)-\tau transition as \sim 0.3 in the case that the BR is \sim
10^{-6}. We observe that the experimental result of the process under
consideration can give comprehensive information about the physics beyond the
standard model and the free parameters existing.


title:
Production of (super)heavy quarkonia and new Higgs physics at hadron
  colliders

abstract:
  Based on the two Higgs doublet model, we study the effect of Higgs-boson
exchange on the (super)heavy quarkonium \bar QQ, which induces a strong
attractive force between a (super)heavy quark Q and an antiquark \bar Q. An
interesting application is the decay of (super)heavy quarkonia \bar QQ into a
Higgs boson associated with gauge bosons. The criterion for making the \bar QQ
bound state is studied. We also show that non-perturbative effects due to
gluonic field fluctuations are rather small in such a heavy quark sector.
Possible enhancement for productions and decays of \bar QQ bound states made
from the fourth generation quark Q is discussed for \bar p p (at the Tevatron)
and pp (at the LHC) collisions.


title: Supersymmetric Grand Unification with a Fourth Generation?

abstract:
  The possibility of incorporating a chiral fourth generation into a SUSY-GUT
is investigated. Precision fits to electroweak observables require us to
introduce light supersymmetric particles, with masses less than mZ. These
particles might also provide decay channels for fourth generation quarks of
mass ~ 100 GeV. We also require tan(beta) to lie in the range 1.50 <~ tan(beta)
<~ 1.75 and obtain an upper limit on the lightest Higgs boson mass in the MSSM4
of 152 GeV.


title: Cosmic Defects and Particle Physics Constraints

abstract:
  In these lectures we review the constraints on particle physics models
arising from cosmic defects. This includes constraints on theories where stable
cosmic string loops, or vortons result. These can arise in supersymmetric
theories. We discuss the possibility of embedded defects being stabilised by
the surrounding plasma, and the constraints imposed on such theories by the
microwave background data. Finally, dilaton constraints are considered.


title: On the Gravitational Field of the Electric Charge

abstract:
  The idea has been spoken that any of Dirac and Pauli form factors of leptonic
current includes both normal and anomalous components. From this point of view,
the dependence of independent parts of charge and magnetic moment is
established with the use of cross sections of elastic scattering of unpolarized
and longitudinal polarized electrons and their neutrinos by spinless nuclei.
Some considerations of a connection between the mass of a particle and its
electromagnetic nature are listed which can explain also the appearance of
gravitational field of a Coulomb interaction. All they state that a massive
four-component neutrino similarly to the electron must have the normal as well
as the anomalous electric charge.


title:
Cosmological bounds on large extra dimensions from non-thermal
  production of Kaluza-Klein modes

abstract:
  The existing cosmological constraints on theories with large extra dimensions
rely on the thermal production of the Kaluza-Klein modes of gravitons and
radions in the early Universe. Successful inflation and reheating, as well as
baryogenesis, typically requires the existence of a TeV-scale field in the
bulk, most notably the inflaton. The non-thermal production of KK modes with
masses of order 100 GeV accompanying the inflaton decay sets the lower bounds
on the fundamental scale M_*. For a 1 TeV inflaton, the late decay of these
modes distort the successful predictions of Big Bang Nucleosynthesis unless
M_*> 35, 13, 7, 5 and 3 TeV for 2, 3, 4, 5 and 6 extra dimensions,
respectively. This improves the existing bounds from cosmology on M_* for 4, 5
and 6 extra dimensions. Even more stringent bounds are derived for a heavier
inflaton.


title: Pi+ Pi- Emission in High-Energy Nuclear Collisions

abstract:
  Realistic vacuum $\pi\pi$ interactions are employed to investigate thermal
$\pi^+\pi^-$ emission spectra from the late stages of heavy-ion reactions at
ultrarelativistic energies. Hadronic in-medium effects, including many-body
$\rho$-meson spectral functions used earlier to describe the dilepton excess
observed at CERN-SPS energies, are implemented to assess resulting
modifications in relation to recent measurements of $\pi^+\pi^-$ invariant-mass
spectra by the STAR collaboration in $p$-$p$ and $Au$-$Au$ collisions at
$\sqrt{s_{NN}}$=200 GeV. Statistical model estimates for the $\rho^0/\pi^-$ and
$K^*/K$ ratios close to the expected thermal freezeout are also given.


title:
Spin-Orbit and Tensor Forces in Heavy-quark Light-quark Mesons:
  Implications of the New Ds state at 2.32 GeV

abstract:
  We consider the spectroscopy of heavy-quark light-quark mesons with a simple
model based on the non-relativistic reduction of vector and scalar exchange
between fermions. Four forces are induced: the spin-orbit forces on the light
and heavy quark spins, the tensor force, and a spin-spin force. If the vector
force is Coulombic, the spin-spin force is a contact interaction, and the
tensor force and spin-orbit force on the heavy quark to order $1/m_1m_2$ are
directly proportional. As a result, just two independent parameters
characterize these perturbations. The measurement of the masses of three p-wave
states suffices to predict the mass of the fourth. This technique is applied to
the $D_s$ system, where the newly discovered state at 2.32 GeV provides the
third measured level, and to the $D$ system. The mixing of the two $J^P=1^+$
p-wave states is reflected in their widths and provides additional constraints.
The resulting picture is at odds with previous expectations and raises new
puzzles.


title: Effects of Right-handed Gauge Bosons in B-Bbar Mixing and CP Violation

abstract:
  In the Left-Right Symmetric Model (LRSM), box diagrams involving the charged
right-handed gauge boson W_R may affect B-Bbar mixing as well as CP asymmetries
in neutral B decays. The smallness of the epsilon_K parameter in the neutral
K-meson system places severe constraints on the right-handed quark mixing
matrix V^R, and reduces the number of its effective phases to one. W_R exchange
gives a large contribution to B-Bbar mixing when the mass of the W_R boson is
up to or higher than 8 TeV, depending on the V^R case, the B_d,s meson, and the
asymmetry. The allowed regions of the CP violating asymmetries sin(2beta),
sin(gamma), sin(2alpha), and sin(2phi_s), as well as x_s, are calculated as a
function of the W_R mass. The results of the LRSM other than for the well
measured sin(2beta) show allowable regions that are much broader than that for
the Standard Model, showing that new experiments can indicate a presence of new
physics, or significantly push up the limits on the W_R mass.


title: Leptogenesis in Neutrino Textures with Two Zeros

abstract:
  The leptogenesis is studied in the neutrino textures with two zeros, which
reduce the number of independent phases of the CP violation. The
phenomenological favored neutrino textures with two zeros are decomposed into
the Dirac neutrino mass matrix and the right-handed Majorana one in the see-saw
mechanism. Putting the condition to suppress the $\mu \to e\gamma$ decay
enough, the texture zeros of the Dirac neutrino mass matrix are fixed in the
framework of the MSSM with right-handed neutrinos. These textures have only one
CP violatig phase. The magnitude of each entry of the Dirac mass matrix is
determined in order to explain the baryon asymmetry of the universe by solving
the Boltzman equations. The relation between the leptogenesis and the low
energy CP violation is presented in these textures.


title: Hypercharge and baryon minus lepton number in E6

abstract:
  We study assignments of the hypercharge and baryon minus lepton number for
particles in the $E_6$ grand unification model. It is shown that there are
three assignments of hypercharge and three assignments of baryon minus lepton
number which are consistent with the Standard Model. Their explicit expressions
and detailed properties are given. In particular, we show that the $U(1)_{B-L}$
symmetry in $E_6$ cannot be orthogonal to the $SU(3)_R$ symmetry. Based on
these investigations, we propose an alternative SU(5) grand unification model.


title: Neutrino Mass Matrix in Terms of Up-Quark Masses

abstract:
  We demonstrate that under the "symmetric zero texture" with minimal Majorana
mass matrix, neutrino masses and mixing angles are expressed in terms of
up-quark masses, $m_t,m_c,m_u$. This provides interesting relations among
neutrino mixing angles and up-type quark masses. Especially we predict
$|U_{e3}| \leq 0.11$ even if we include the small mixing effects coming from
charged lepton side. Also absolute masses of three neutrinos are predicted
almost uniquely. This is quite in contrast to the case where bi-large mixings
come from the charged lepton sector with non-symmetric charged lepton mass
matrix.


title:
Locality of quark-hadron duality and deviations from quark counting
  rules above resonance region

abstract:
  We show how deviations from the dimensional scaling laws for exclusive
processes may be related to a breakdown in the locality of quark-hadron
duality. The essential principles are illustrated in a pedagogic model of a
composite system with two spinless charged constituents, for which a dual
picture for the low-energy resonance phenomena and high-energy scaling behavior
can be established. We introduce the concept of "restricted locality" of
quark-hadron duality and show how this results in deviations from the pQCD
quark counting rules above the resonance region. In particular it can be a
possible source for oscillations about the smooth quark counting rule, as seen
e.g. in the 90-degree differential cross sections for $\gamma p\to \pi^+ n$.


title: Meson masses in large Nf QCD from the Bethe-Salpeter equation

abstract:
  We solve the homogeneous Bethe-Salpeter (HBS) equation for the scalar,
pseudoscalar, vector, and axial-vector bound states of quark and anti-quark in
large Nf QCD with the improved ladder approximation in the Landau gauge. The
quark mass function in the HBS equation is obtained from the Schwinger-Dyson
(SD) equation in the same approximation for consistency with the chiral
symmetry. Amazingly, due to the fact that the two-loop running coupling of
large Nf QCD is explicitly written in terms of an analytic function, large Nf
QCD turns out to be the first example in which the SD equation can be solved in
the complex plane and hence the HBS equation directly in the time-like region.
We find that approaching the chiral phase transition point from the broken
phase, the scalar, vector, and axial-vector meson masses vanish to zero with
the same scaling behavior, all degenerate with the massless pseudoscalar meson.
This may suggest a new type of manifestation of the chiral symmetry restoration
in large Nf QCD.


title:
Absolute values of three neutrino masses from atmospheric mixing and an
  ansatz for the mixing-matrix elements

abstract:
  Using data from atmospheric neutrino mixing, and a simple functional form for
mixing angles, the absolute values of three neutrino masses are calculated:
$m_3\cong 5.37\times 10^{-2} eV$, $m_2\cong 1.94\times 10^{-2} eV$, $m_1\cong
1.46\times 10^{-2} eV$. The quantities relevant for solar neutrino mixing are
calculated: $(m_2^2-m_1^2) \cong 1.63\times 10^{-4} eV^2$, with non-maximal
mixing $\tan^2\theta_\sol \cong 0.56$. The analysis gives a suggestion of a
dynamical origin for the empirical, large CP-violating phase associated with an
intrinsically, very small mixing angle in the quark sector.


title: Practical techniques of analytic perturbation theory of QCD

abstract:
  The Lambert-W explicit solutions to the QCD renormalization group (RG)
equation are considered up to fourth order in the ${\bar {MS}}$ scheme. We
compare, systematically, these solutions with the conventional asymptotical
(iterative) approximations and with the exact numerical solutions to the RG
equation in the domain with three quark flavours. Applications of these
solutions in analytic perturbation theory (APT) are discussed. Using these
(Lambert-W, asymptotical and exact numerical) solutions we reconstruct the
expansion functions for the non-power APT series in the space- and time-like
regions. These expansion functions are examined in the infrared region. It is
shown that the Lambert-W solutions provide the excellent accuracy.


title: Bound state equation in the Wilson loop approach with minimal surfaces

abstract:
  The large-distance dynamics in quarkonium systems is investigated, in the
large N limit, through the saturation of Wilson loop averages by minimal
surfaces. Using a representation for the quark propagator in the presence of
the external gluon field based on the use of path-ordered phase factors, a
covariant three-dimensional bound state equation of the Breit-Salpeter type is
derived, in which the interaction potentials are provided by the
energy-momentum vector of the straight segment joining the quark to the
antiquark and carrying a constant linear energy density, equal to the string
tension. The interaction potentials are confining and reduce to the linear
vector potential in the static case and receive, for moving quarks,
contributions from the moments of inertia of the straight segment. The
self-energy parts of the quark propagators induce spontaneous breakdown of
chiral symmetry with a mechanism identical to that of the exchange of one
Coulomb-gluon. The nonrelativistic and ultrarelativistic properties of the
bound state spectrum are studied.


title: Inconsistencies in Interpreting the Atmospheric Neutrino Anomaly

abstract:
  We note a discrepancy between the value of R expected on the basis of the
muon neutrino angular distribution and the value actually observed. The energy
independence of $R$ leads to a fine tuning problem. This may be indicative of
some unaccounted for new physics.


title: Is Quark Saturation Related to the Pauli Principle?

abstract:
  Below the saturation momentum the sea quark occupation number reaches a pure
number, independent of any parameters in QCD, reminiscent of a Pauli Principle
result. We argue, however, that the Pauli Principle plays no role in the
result.


title: Supersymmetry Breaking in Warped Geometry

abstract:
  We examine the soft supersymmetry breaking parameters in supersymmetric
theories on a slice of AdS_5 which generate the hierarchical Yukawa couplings
by dynamically localizing the bulk matter fields in extra dimension. Such
models can be regarded as the AdS dual of the recently studied 4-dimensional
models which contain a supersymmetric CFT to generate the hierarchical Yukawa
couplings. In such models, if supersymmetry breaking is mediated by the bulk
radion superfield and/or some brane chiral superfields, potentially dangerous
flavor-violating soft parameters can be naturally suppressed, thereby avoiding
the SUSY flavor problem. We present some models of radion-dominated
supersymmetry breaking which yield a highly predictive form of soft parameters
in this framework.


title: Implications of a DK Molecule at 2.32 GeV

abstract:
  We discuss the implications of a possible quasinuclear DK bound state at 2.32
GeV. Evidence for such a state was recently reported in D_s^+pi^o by the BaBar
Collaboration. We first note that a conventional quark model c-sbar assignment
is implausible, and then consider other options involving multiquark systems.
An I=0 c sbar n nbar baryonium assignment is one possibility. We instead favor
a DK meson molecule assignment, which can account for the mass and quantum
numbers of this state. The higher-mass scalar c-sbar state expected at 2.48 GeV
is predicted to have a very large DK coupling, which would encourage formation
of an I=0 DK molecule. Isospin mixing is expected in hadron molecules, and a
dominantly I=0 DK state with some I=1 admixture could explain both the narrow
total width of the 2.32 GeV state as well as the observed decay to D_s^+ pi^o.
Additional measurements that can be used to test this and related scenarios are
discussed.


title: Varying alpha, thresholds and extra dimensions

abstract:
  We consider variations of coupling strengths and mass ratios in and beyond
the Standard Model, in the light of various mechanisms of mass generation. In
four-dimensional unified models, heavy quark and superparticle thresholds and
the electron mass can completely alter the (testable) relation between Delta ln
alpha and Delta ln mu, where mu \equiv m_p/m_e. In extra-dimensional models
where a compactification scale below the fundamental scale is varying, definite
predictions may result even without unification; we examine some models with
Scherk-Schwarz supersymmetry-breaking.


title: Effective Field Theories on Non-Commutative Space-Time

abstract:
  We consider Yang-Mills theories formulated on a non-commutative space-time
described by a space-time dependent anti-symmetric field $\theta^{\mu\nu}(x)$.
Using Seiberg-Witten map techniques we derive the leading order operators for
the effective field theories that take into account the effects of such a
background field. These effective theories are valid for a weakly
non-commutative space-time. It is remarkable to note that already simple models
for $\theta^{\mu\nu}(x)$ can help to loosen the bounds on space-time
non-commutativity coming from low energy physics. Non-commutative geometry
formulated in our framework is a potential candidate for new physics beyond the
standard model.


title: Detecting a Higgs Pseudoscalar with a $Z$ Boson at the LHC

abstract:
  We have adopted two Higgs doublet models to study the production of a Higgs
pseudoscalar ($A^0$) in association with a $Z$ gauge boson from gluon fusion
($gg \to ZA^0$) at the CERN Large Hadron Collider. The prospects for the
discovery of $ZA^0 \to \ell \bar{\ell} b\bar{b}$ are investigated with physics
backgrounds and realistic cuts. Promising results are found for $m_A \alt 260$
GeV in two Higgs doublet models when the heavier Higgs scalar ($H^0$) can decay
into a $Z$ boson and a Higgs pseudoscalar ($A^0$). Although the cross section
of $gg \to ZA^0$ is usually small in the minimal supersymmetric standard model,
it can be significantly enhanced in general two Higgs doublet models. This
discovery channel might provide an opportunity to search for a Higgs scalar and
a Higgs pseudoscalar simultaneously at the LHC and could lead to new physics
beyond the Standard Model and the minimal supersymmetric model.


title: Gravity and Matter in Extra Dimensions

abstract:
  In this paper, we derive from the viewpoint of the effective 4D theory the
interaction terms between linearized gravity propagating in N>= 2 large extra
dimensions and matter propagating into one extra dimension. This generalizes
known results for the interactions between gravity and 4D matter in ADD-type
models. Although we assume that matter is described by an Universal Extra
Dimensions (UED) scenario (with all fields propagating into the fifth
dimension), we present our results in a general form that can be easily adapted
to various other scenarios of matter distribution. We then apply our results to
the UED model on a fat brane and consider some phenomenological applications.
Among these are the computation of the gravitational decay widths of the matter
KK excitations and the effect the width of the brane has on the interactions of
gravity with Standard Model particles. We also estimate the cross-section for
producing single KK excitations at colliders through KK number-violating
gravitational interaction.


title: Thermodynamics of Large-N_f QCD at Finite Chemical Potential

abstract:
  We extend the previously obtained results for the thermodynamic potential of
hot QCD in the limit of large number of fermions to non-vanishing chemical
potential. We give exact results for the thermal pressure in the entire range
of temperature and chemical potential for which the presence of a Landau pole
is negligible numerically. In addition we compute linear and non-linear quark
susceptibilities at zero chemical potential, and the entropy at small
temperatures. We compare with the available perturbative results and determine
their range of applicability. Our numerical accuracy is sufficiently high to
check and verify existing results, including the recent perturbative results by
Vuorinen on quark number susceptibilities and the older results by Freedman and
McLerran on the pressure at zero temperature and high chemical potential. We
also obtain a number of perturbative coefficients at sixth order in the
coupling that have not yet been calculated analytically. In the case of both
non-zero temperature and non-zero chemical potential, we investigate the range
of validity of a scaling behaviour noticed recently in lattice calculations by
Fodor, Katz, and Szabo at moderately large chemical potential and find that it
breaks down rather abruptly at $\mu_q \gtrsim \pi T$, which points to a
presumably generic obstruction for extrapolating data from small to large
chemical potential. At sufficiently small temperatures $T \ll \mu_q$, we find
dominating non-Fermi-liquid contributions to the interaction part of the
entropy, which exhibits strong nonlinearity in the temperature and an excess
over the free-theory value.


title:
Heavy Baryonic Decays of \Lambda_b \to \Lambda \eta^{(\prime)} and
  Nonspectator Contribution

abstract:
  We calculate the branching ratios of the hadronic \Lambda_b decays to \eta
and \eta^\prime in the factorization approximation where the form factors are
estimated via QCD sum rules and the pole model. Our results indicate that,
contrary to B\to K\eta^{(\prime)} decays, the branching ratios for
\Lambda_b\to\Lambda\eta and \Lambda_b\to\Lambda\eta^\prime are more or less the
same in the hadronic \Lambda_b transitions. We estimate the branching ratio of
\Lambda_b\to\Lambda\eta^{(\prime)} to be 10.80 (10.32)\times 10^{-6} in QCD sum
rules, and 2.78 (2.96)\times 10^{-6} in the pole model. We also estimate the
nonfactorizable gluon fusion contribution to \Lambda_b\to\Lambda\eta^\prime
decay by dividing this process into strong and weak vertices. Our results point
to an enhancement of more than an order of magnitude due to this mechanism.


title: B -> eta^(\prime) l nu decays and the flavor-singlet form factor

abstract:
  We study semileptonic decays B -> eta^(\prime) l nu, taking into account the
flavor-singlet contribution (F^{singlet}_+) to the B -> eta^(\prime) form
factors, which arises from the two-gluon emission in a decaying B meson. It has
been recently pointed out that, in addition to large weak annihilation effects,
the unknown value of F^{singlet}_+ prevents accurate theoretical estimates in
the analysis of B -> eta^\prime K decays in QCD factorization. We present a
certain method to determine F^{singlet}_+ with a reasonable accuracy, using B
-> eta^(\prime) l nu and B -> pi l nu decays. We also investigate the possible
effect of F^{singlet}_+ on the estimated branching ratios (BRs) for B ->
eta^(\prime) l nu and find that the BR for B -> eta^\prime l nu is particularly
sensitive to the effect of F^{singlet}_+.


title: Rare radiative exclusive B decays in soft-collinear effective theory

abstract:
  We consider rare radiative B decays such as B -> K^* gamma or B -> rho gamma
in soft-collinear effective theory, and show that the decay amplitudes are
factorized to all orders in alpha_s and at leading order in Lambda/m_b.By
employing two-step matching, we classify the operators for radiative B decays
in powers of a small parameter lambda(~ \sqrt{Lambda/m_b}) and obtain the
relevant operators to order lambda in SCET_I. These operators are constructed
with or without spectator quarks including the four-quark operators
contributing to annihilation and W-exchange channels. And we employ SCET_II
where the small parameter becomes of order Lambda/m_b, and evolve the operators
in order to compute the decay amplitudes for rare radiative decays in
soft-collinear effective theory. We show explictly that the contributions from
the annihilation channels and the W-exchange channels vanish at leading order
in SCET. We present the factorized result for the decay amplitudes in rare
radiative B decays at leading order in SCET, and at next-to-leading order in
alpha_s.


title: Inclusive Heavy-Quarkonium Production in Hadronic Collisions

abstract:
  We discuss the theory of inclusive production of heavy quarkonium, the
comparison between theory and experiment, and the expected nuclear effects in
cold nuclear targets. We also present predictions, based on Nonrelativistic QCD
(NRQCD), for quarkonium production cross sections in the LHC energy range. We
find that nuclear effects in the production cross sections are largely
independent of the sizes of the NRQCD matrix elements, the charmonium state
that is produced and, in the color-octet case, largely independent of the
partonic subprocess that produces the heavy quark-antiquark pair.


title:
Observed D_s(2317) and tentative D(2100-2300) as the charmed cousins of
  the light scalar nonet

abstract:
  The very recently observed D^*_{sJ}(2317)^+ meson is described as a
quasi-bound scalar c\bar{s} state in a unitarized meson model, owing its
existence to the strong ^3P_0 OZI-allowed coupling to the nearby S-wave DK
threshold. By the same mechanism, a scalar D_0(2100-2300) resonance is
predicted slightly above the D\pi threshold. These scalars are the charmed
cousins of the light scalar nonet f_0(600), f_0(980), K^*_0(800), and a_0(980),
reproduced by the same model. The standard c\bar{n} and c\bar{s} charmed
scalars D_{0} and D_{s0}, cousins of the scalar nonet f_0(1370), f_0(1500),
K_0^*(1430), and a_0(1450), are predicted to lie at about 2.64 and 2.79 GeV,
respectively, both with a width of some 200 MeV.


title: Consequences of a Large Top-Quark Chiral Weak-Moment

abstract:
  This talk concerns some theoretical patterns of the helicity amplitudes for t
--> W b decay. The patterns involve both the standard model's four decay
helicity amplitudes, A_{SM}, and also the amplitudes A_{+} in the case of an
additional t_R --> b_L tensorial coupling of relative strength \Lambda_{+} =E_W
/2 = 53 GeV. Such an additional electroweak coupling would arise if the
observed top-quark has a large chiral weak-transition-moment. The A_{+}
amplitudes are interpreted as corresponding to the observed top-quark decays.
Three tWb-transformations A_{+}=M A_{SM}, ..., are used in simple
characterization of the values of \Lambda_{+}, and of the mass ratios m_W/m_t,
and m_b/m_t. Measurement of the sign of the \eta_L = +/- 0.46 helicity
parameter, respectively for SM/+, due to the large interference between the
W-longitudinal and W-transverse amplitudes, could exclude such a chiral
weak-transition-moment in favor of the SM prediction.


title: Vector and axial-vector correlators in a nonlocal chiral quark model

abstract:
  The behavior of nonperturbative parts of the isovector-vector and isovector
and isosinglet axial-vector correlators at Euclidean momenta is studied in the
framework of a covariant chiral quark model with nonlocal quark-quark
interactions. The gauge covariance is ensured with the help of the P-exponents,
with the corresponding modification of the quark-current interaction vertices
taken into account. The low- and high-momentum behavior of the correlators is
compared with the chiral perturbation theory and with the QCD operator product
expansion, respectively. The V-A combination of the correlators obtained in the
model reproduces quantitatively the ALEPH data on hadronic \tau decays,
transformed into the Euclidean domain via dispersion relations. The predictions
for the electromagnetic \pi^\pm - \pi^0 mass difference and for the pion
electric polarizability are also in agreement with the experimental values. The
topological susceptibility of the vacuum is evaluated as a function of the
momentum, and its first moment is predicted to be \chi'(0)\approx (50 MeV)^2.
In addition, the fulfillment of the Crewther theorem is demonstrated.


title: B Decays as Spectroscope for Charmed Four-quark States

abstract:
  The $D_s(2320)$ state recently observed by BaBar in the $D_s^+\pi^0$ channel
may be the first of a host of $cq\bar q\bar q$ four-quark states. We give a
phenomenological account of the masses and decay modes. The isosinglet
$D_s(2320)$ state is the only narrow one, dominated by the observed isospin
violating decay and less than $\sim$ 100 keV in width. All other states are
expected to decay hadronically. Notable resonances are in doubly charged
$D_s^+\pi^+$, $D^+K^+$, wrong pairing $D^+K^-$, and also $D_s^+K^-$, $D\eta$
channels. We propose B decays as searching ground for such 4-quark states,
which recoil against $\bar D^{(*)}$ meson from B decay, or $\pi^+$ $\bar
D^{(*)}$, $\bar K$ mesons from $\bar B$ decay. Exotic $qc\bar c\bar q$
charmonia could also be produced, and may be behind the slow $J/\psi$ bump in
inclusive $B\to J/\psi+X$ decay.


title:
Renormalization group parameter evolution of the minimal supersymmetric
  standard model with R-parity violation

abstract:
  A comparison of spectra obtained using the 1-loop MSSM and 2-loop R-parity
violating MSSM renormalization group equations is presented. Influence of
higher loop corrections and R-parity violating terms is discussed. Some
numerical constraints on the R-parity violating parameters are also given.


title: Extended coannihilations from non universal sfermion masses

abstract:
  We propose and analyse a GUT-inspired version of the MSSM featuring non
universal sfermion masses boundary conditions and asymptotic b-tau Yukawa
coupling unification. The particle spectrum of the model gives rise to extended
coannihilation processes, involving the lightest sbottom and the tau sneutrino.
We study the allowed parameter space, subject to cosmo-phenomenological
requirements, and the details of the new coannihilations modes. Implications
for direct and indirect neutralino searches, as well as for collider physics,
are also briefly summarized.


title:
Majorana Neutrino, the Size of Extra Dimensions, and Neutrinoless Double
  Beta Decay

abstract:
  The problem of Majorana neutrino mass generated in
Arkani-Hamed--Dimopoulos-Dvali model with n extra spatial dimensions is
discussed. Taking into account constraints on neutrino masses coming from
cosmological observations, it is possible to obtain lower limits on the size of
extra dimensions as large as 10^{-6} mm. In the case of n=4 it is easy to lower
the fundamental scale of gravity from the Planck energy to electroweak scale
\~TeV without imposing any additional constraints. A link between the half-life
of neutrinoless double beta decay and the size of extra dimensions is
discussed.


title:
The density distribution in the Earth along the CERN-Pyhasalmi baseline
  and its effect on neutrino oscillations

abstract:
  We study the beamline properties of a long baseline neutrino-oscillation
experiment from CERN to the Pyhasalmi Mine in Finland.
  We obtain the real density profile for this particular neutrino oscillation
beamline by applying the geophysical data. The effects of the matter density to
neutrino oscillations are considered. Also we compare the realistic density
profile with that acquired from the PREM model.


title:
A consistent description of rho0 -> pi pi gamma decays including
  sigma(500) meson effects

abstract:
  A consistent description of $\sigma(500)$ meson effects in
$\rho^0\to\pi^0\pi^0\gamma$ and $\pi^+\pi^-\gamma$ decays is proposed in terms
of reasonably simple amplitudes which reproduce the expected chiral-loop
behaviour for large $m_{\sigma}$ values. For the neutral case, in addition to
the well known $\omega$ exchange, there is an important contribution from the
$\sigma(500)$ meson that is in agreement with recent experimental data. For the
charged case, where the dominant contribution comes from bremsstrahlung, the
effects of the $\sigma(500)$ meson are relevant only at high values of the
photon energy and compatible with present data. A combined analysis of both
processes with moderately improved experimental information should contribute
decisively to clarify the status of this controversial $\sigma(500)$ meson.


title: The Higgs mass as a function of the compactification scale

abstract:
  We calculate to a few percent precision the Higgs potential in a model with
supersymmetry broken by boundary conditions on an extra-dimension, compactified
to a segment of length $L$, and a top quark quasi-localized on one of the two
boundaries. 1/L alone, in the range 2-4 TeV, determines the Higgs mass, in the
range 110-125 GeV, and the spectrum of gauginos, higgsinos and of the
third-generation squarks. Lower values of 1/L cannot be excluded, with a
progressive delocalization of the top quark.


title: Nuclear Heavy Quark Photoproduction in a Saturation Model

abstract:
  We calculate the nuclear inclusive and diffractive cross sections for heavy
quark photoproduction within a phenomenological saturation approach. The
nuclear cross section is obtained by the extension of the saturation model
through Glauber-Gribov formalism. We predict large nuclear heavy quark cross
section at LHC energies.


title: A discrete symmetry group for maximal atmospheric neutrino mixing

abstract:
  We propose a discrete non-abelian symmetry group which enforces maximal
atmospheric neutrino mixing, while $\theta_{13} = 0$ and the solar mixing angle
$\theta_{12}$ remains undetermined; without finetuning, $\theta_{12}$ will be
large but non-maximal. Our extension of the Standard Model has three
right-handed neutrino singlets $\nu_R$ and implements the seesaw mechanism.
Furthermore, we have an enlarged scalar sector with three Higgs doublets and
two scalar gauge singlets; the latter have masses and vacuum expectation values
of the order of the seesaw scale. Lepton mixing stems exclusively from the
$\nu_R$ Majorana mass matrix, where non-diagonal elements are generated by the
vacuum expectation values of the scalar singlets. The model predicts a neutrino
mass spectrum with $m_3 > m_2 > m_1$ and the effective Majorana mass of
neutrinoless $\beta\beta$ decay is equal to $m_1 m_2 / m_3$.


title: A New Method to Infere Which Type of Neutralinos Make Up Galactic Halos

abstract:
  Applying the microcanonical definition of entropy to a weakly interacting and
self--gravitating neutralino gas, we evaluate the change in the local entropy
per particle of this gas between the freeze out era and present day virialized
halo structures. An ``entropy consistency'' criterion emerges by comparing the
obtained theoretical entropy per particle of the virialized halos with an
empirical entropy per particle given in terms of dynamical halo variables of
actual galactic structures. We apply this criterion to the cases when
neutralinos are mostly B-inos and mostly Higgsinos, in conjunction with the
usual ``abundance'' criterion requiring that present neutralino relic density
complies with $0.2<\Omega_{{\tilde\chi^1_0}} < 0.4$ for $h\simeq 0.65$. The
joint application of both criteria reveals that a much better fitting occurs
for the B-ino than for the Higgsino channels, so that the former seems to be a
favored channel along the mass range of $150 \hbox{GeV} < m_{{\tilde\chi^1_0}}
< 250 \hbox{GeV}$. These results are consistent with neutralino annihilation
patterns that emerge from recent theoretical analysis on cosmic ray positron
excess data reported by the HEAT collaboration. The suggested methodology can
be applied to test other annihilation channels of the neutralino, as well as
other particle candidates of thermal WIMP gas relics.

categories: hep-ph astro-ph cond-mat.stat-mech physics.flu-dyn


title: Strong Anomalies in Kaon Decays

abstract:
  We point to a potentially large contribution of the QCD trace anomaly to the
isoscalar pion pair production in Kaon decays. This contribution arises from
the long-distance evolution of a 7-dimensional quark-gluon operator generated
by short-distance QCD corrections to the Delta_S = 1 Fermi Hamiltonian.


title: Chiral Multiplets of Heavy-Light Mesons

abstract:
  The recent discovery of a narrow resonance in D_s+pi^0 by the BABAR
collaboration is consistent with the interpretation of a heavy J^P(0+,1+) spin
multiplet. This system is the parity partner of the groundstate (0-,1-)
multiplet, which we argue is required in the implementation of SU(3)_L x
SU(3)_R chiral symmetry in heavy-light meson systems. The (0+,1+)->(0-,1-)+pi
transition couplings satisfy a Goldberger-Treiman relation, g_pi =
Delta(M)/f_pi, where Delta(M) is the mass gap. The BABAR resonance fits the 0+
state, with a kinematically blocked principal decay mode to D+K. The allowed
D_s+pi, D_s+2pi and electromagnetic transitions are computed from the full
chiral theory and found to be suppressed, consistent with the narrowness of the
state. This state establishes the chiral mass difference for all such
heavy-quark chiral multiplets, and precise predictions exist for the analogous
B_s and strange doubly-heavy baryon states.


title:
Considerations Concerning the Contributions of Fundamental Particles to
  the Vacuum Energy Density

abstract:
  The covariant regularization of the contributions of fundamental particles to
the vacuum energy density is implemented in the Pauli-Villars, dimensional
regularization, and Feynman regulator frameworks. Rules of correspondence
between dimensional regularization and cutoff calculations are discussed.
Invoking the scale invariance of free field theories in the massless limit, as
well as consistency with the rules of correspondence, it is argued that quartic
divergencies are absent in the case of free fields, while it is shown that they
arise when interactions are present.


Is there any room for new physics in the muon g-2 problem?


title:
Resonant spin-flavor conversion of supernova neutrinos: Dependence on
  presupernova models and future prospects

abstract:
  We study the resonant spin-flavor (RSF) conversion of supernova neutrinos,
which is induced by the interaction between the nonzero neutrino magnetic
moment and the supernova magnetic fields, and its dependence on presupernova
models. As the presupernova models, we adopt the latest ones by Woosley, Heger,
and Weaver, and, further, models with both solar and zero metallicity are
investigated. Since the $(1-2Y_e)$ profile of the new presupernova models,
which is responsible for the RSF conversion, suddenly drops at the resonance
region, the completely adiabatic RSF conversion is not realized, even if
$\mu_\nu B_0= (10^{-12}\mu_B)(10^{10} G)$, where $B_0$ is the strength of the
magnetic field at the surface of the iron core. In particular for the model
with zero metallicity, the conversion is highly nonadiabatic in the high energy
region, reflecting the $(1-2Y_e)$ profile of the model. In calculating the
flavor conversion, we find that the shock wave propagation, which changes
density profiles drastically, is a much more severe problem than it is for the
pure Mikheyev-Smirnov-Wolfenstein (MSW) conversion case. This is because the
RSF effect occurs at a far deeper region than the MSW effect. To avoid the
uncertainty concerning the shock propagation, we restrict our discussion to 0.5
s after the core bounce (and for more conservative discussion, 0.25 s), during
which the shock wave is not expected to affect the RSF region. We also evaluate
the energy spectrum at the Super-Kamiokande detector for various models using
the calculated conversion probabilities, and find that it is very difficult to
obtain useful information on the supernova metallicities and magnetic fields or
on the neutrino magnetic moment from the supernova neutrino observation. Future
prospects are also discussed.


title: Radiative corrections to parity-non-conservation in atoms

abstract:
  Recent progress in calculations of QED radiative corrections to parity
nonconservation in atoms is reviewed. The QED vacuum polarization, the
self-energy corrections and the vertex corrections are shown to be described
very reliably by different methods used by different groups. All new
calculations have recently converged to very close final values. Each separate
radiative correction is very large, above 1 % for heavy atoms, but having
different signs they partly compensate each other. Our results for the
radiative corrections for all atoms are presented. The corrections are -0.54 %
for 133 Cs, and -0.70% for 205 Tl, 208 Pb, and 209 Bi. The result for 133 Cs
reconciles the most accurate atomic experimental data for the 6s-7s PNC
amplitude in 133 Cs of Wood et al with the standard model.


title:
Ultraperipheral photoproduction of vector mesons in the nuclear Coulomb
  field and the size of neutral vector mesons

abstract:
  We point out a significance of ultraperipheral photoproduction of vector
mesons in the Coulomb field of nuclei as a means of measuring the radius of the
neutral vector meson. This new contribution to the production amplitude is very
small compared to the conventional diffractive amplitude, but because of large
impact parameters inherent to the ultraperipheral Coulomb mechanism its impact
on the diffraction slope is substantial. We predict appreciable and strongly
energy dependent increase of the diffraction slope towards very small momentum
transfer.The magnitude of the effect is proportional to the mean radius squared
of the vector meson and is within the reach of high precision photoproduction
experiments, which gives a unique experimental handle on the size of vector
mesons.


title: Nonperturbative contributions to the quark form factor at high energy

abstract:
  The analysis of nonperturbative effects in high energy asymptotics of the
electomagnetic quark form factor is presented. It is shown that the
nonperturbative effects determine the initial value for the perturbative
evolution of the quark form factor and find their general structure with
respect to the high energy asymptotics. Within the Wilson integral formalism
which is natural for investigation of the soft, IR sensitive, part of the
factorized form factor, the structure of the instanton induced effects in the
evolution equation is discussed. It is demonstrated that the instanton
contributions result in the finite renormalization of the subleading
perturbative result and numerically are characterized by small factor
reflecting the diluteness of the QCD vacuum within the instanton liquid model.
The relevance of the IR renormalon induced effects in high energy asymptotic
behaviour is discussed. The consequences of the various analytization
procedures of the strong coupling constant in the IR domain are considered.


title: (phi -> K K) decay in light cone QCD

abstract:
  The coupling constant of (phi -> K K) decay is calculated in light cone QCD
sum rules. The result obtained for g_{phi KK} = (4.9 pm 0.8) is in a good
agreement with the existing experimental result.


title: Nuclear Structure Functions at Small x in Multiple Scattering Approaches

abstract:
  A simple model for nuclear structure functions in the region of small $x$ and
small and moderate $Q^2$, is presented. It is a parameter-free extension, in
the Glauber-Gribov approach to nuclear collisions, of a saturation model for
the nucleon. A reasonable agreement with experimental data on ratios of nuclear
structure functions is obtained. The unintegrated gluon distribution and the
behavior of the saturation scale which result from this model are discussed.


title: Are Massive Elementary Particles Black Holes?

abstract:
  We use exact results in a new approach to quantum gravity to study the effect
of quantum loop corrections on the behavior of the metric of space-time near
the Schwarzschild radius of a massive point particle in the Standard Model. We
show that the classical conclusion that such a system is a black hole is
obviated. Phenomenological implications are discussed.


title: Lepton Flavor Violation and Neutrino Mixings in a 3X2 Seesaw Model

abstract:
  We study the predictions for BR(mu-> e+gamma) and BR(tau-> e,mu+gamma) in a
class of recently proposed horizontal SU(2) model that leads to a 3 X 2 seesaw
model for neutrino masses. We consider two such models and obtain the correct
bi-large mixing pattern for neutrinos. In these models, the effective low
energy theory below the SU(2)_H scale is the MSSM. Assuming a supersymmetry
breaking pattern as in the minimal SUGRA models, we find that consistent with
present g-2, b->s+gamma and WMAP dark matter constraints on the parameters of
the model, the BR(mu-> e+gamma) prediction is accessible to the proposed MEG
experiment at PSI making this class of models testable in the near future.


title: Description of the $D^*_s(2320)$ resonance as the $D\pi$ atom

abstract:
  We discuss the possibility that the recently reported resonance in the $D_s
\pi^0$ spectrum can be described in terms of residual $D\pi$ interactions.


title: Prediction of Pure Annihilation Type B Decays

abstract:
  The rare decays $B^+ \to D_s^{+} \phi$, $B^0 \to D_s^{(*)-} K^+$ and $B^+ \to
D_s^{(*)+} \bar{K}^0$ can occur only via annihilation type diagrams in the
standard model. We calculate these decays in perturbative QCD approach. We
found that the calculated branching ratio of $B^0 \to D_s^- K^+$ agree with the
data which had been observed in the KEK and SLAC B factories. The decay $B^+
\to D_s^{(*)+} \bar K^0$ has a very small branching ratio at O ($10^{-8}$), due
to the suppression from CKM matrix elements. The branching ratio of $B^+ \to
D_s^+ \phi$ is of order $10^{-7}$ which may be measured in the near future by
KEK and SLAC B factories. The small branching ratios predicted in the standard
model make these channel sensitive to new physics contributions.


title: Destruction of Nuclear Bombs Using Ultra-High Energy Neutrino Beam

abstract:
  We discuss the possibility of utilizing the ultra-high energy neutrino beam
(about 1000 TeV) to detect and destroy the nuclear bombs wherever they are and
whoever possess them.


title:
Towards an exact evaluation of the supersymmetric O(alpha_s tan beta)
  corrections to \bar{B} -> X_s gamma

abstract:
  The charged-Higgs contributions to the decay \bar{B} -> X_s gamma are
discussed in the minimal supersymmetric standard model at large tan beta. These
contributions receive two-loop O(alpha_s tan beta) corrections by squark-gluino
subloops, which are nondecoupling in the limit of heavy superpartners and
possibly large. Their leading parts are already known and were evaluated by
using an effective two-Higgs-doublet Lagrangian. Subleading corrections coming
from higher-dimension operators in the effective Lagrangian were ignored,
although this is not, a priori, justified when m_{H^\pm} is not much smaller
than the typical supersymmetric mass M_{SUSY}. Here, we calculate all
subleading terms of the O(alpha_s tan beta) corrections up to
O((m_t^2,m_{H^\pm}^2/M_{SUSY}^2)^2), as well as all the exact two-loop diagrams
with squark-gluino subloops, beyond the effective-Lagrangian approximation.
Comments are made on the size of these corrections.


title: Extrinsic CPT Violation in Neutrino Oscillations in Matter

abstract:
  We investigate matter-induced (or extrinsic) CPT violation effects in
neutrino oscillations in matter. Especially, we present approximate analytical
formulas for the CPT-violating probability differences for three flavor
neutrino oscillations in matter with an arbitrary matter density profile. Note
that we assume that the CPT invariance theorem holds, which means that the CPT
violation effects arise entirely because of the presence of matter. As special
cases of matter density profiles, we consider constant and step-function matter
density profiles, which are relevant for neutrino oscillation physics in
accelerator and reactor long baseline experiments as well as neutrino
factories. Finally, the implications of extrinsic CPT violation on neutrino
oscillations in matter for several past, present, and future long baseline
experiments are estimated.


title: Theory of the Lamb Shift in Hydrogenlike Systems

abstract:
  Analytic calculations of the Lamb shift represent a considerable challenge
due to the size and the complexity of the expressions that occur in
intermediate steps. In the current work, we present a method for the treatment
of the bound-state self-energy in higher orders. Advantage is taken of computer
algebra systems. The method is applied to the 2P-states, and the (one-loop)
self-energy is calculated up to the order of alpha (Zalpha)^6. The calculation
leads to improved predictions for the in atomic hydrogen. In particular, the
focus of the current work is the calculation of the so-called A_60-coefficient
with improved accuracy. A_60-coefficients for 2P states are calculated with an
accuracy of less than 1 Hz in frequency units. An account of the contributions
to the Lamb shift of 2P states is given [status of 1996 when this thesis was
completed]. Bound-state quantum electrodynamics combines the complexity of
modern quantum field theory, including renormalization, augmented by the
structure of bound states and the inherent relativistic corrections with the
experimental possibilities of modern high-resolution laser spectroscopy.


title: Radiative energy shifts induced by local potentials

abstract:
  We study a specific correction to the Bethe logarithm induced by potentials
which are proportional to a Dirac-delta function in coordinate space ("local
potentials"). Corrections of this type occur naturally in the calculation of
various self-energy corrections to the energy of bound states. Examples include
logarithmic higher-order binding corrections to the two-loop self-energy,
vacuum-polarization induced corrections to the self-energy and radiative
corrections induced by the finite size of the nucleus. We obtain results for
excited S and P states and find that the dependence of the corrections on the
principal quantum number is remarkable. For the ground state, we find a small
modification as compared to previously reported results. Our results are based
on mathematical techniques for the treatment of quantum electrodynamic bound
states discussed previously in [J. Phys. A 35 (2002) 1927, hep-ph/0111084].


title: T-odd correlation in the K+ ->pi l nu gamma decays beyond Standard Model

abstract:
  The dependence of the T-odd correlation on the effective Lagrangian
parameters in the $K^+ \to \pi l \nu \gamma, l=e, \mu$ decays is analyzed. It
is shown that the introduced observable is perspective in a search for new
physics in the vector and pseudovector sector of the Lagrangian. As for scalar
and pseudoscalar sectors, the T-odd correlation studies will not allow one to
improve current restrictions on parameters of models beyond SM.


title:
A formulation for description of pi^+(2pi^-) and pi^-(2pi^+) channels in
  Bose-Einstein correlation by Coulomb wave function

abstract:
  In order to analyze data on charged pions correlation channels, pi^+(2pi^-)
and pi^-(2pi^+), we propose new interferometry approach using the Coulomb wave
function. We show that to describe adequately data we have to introduce new
parameter describing the contribution of pi^-(k_1) pi^+(k_2) --> pi^-(k_2)
pi^+(k_1) process. Using this new formula we analyze data on pi^+(2pi^-) and
pi^-(2pi^+) channels at sqrt(s) = 91 GeV by DELPHI Collaboration, and estimate
the magnitude of this new parameter as well as the degree of coherence.


title: Inhomogeneous Superconductivity in Condensed Matter and QCD

abstract:
  Inhomogeneous superconductivity arises when the species participating in the
pairing phenomenon have different Fermi surfaces with a large enough
separation. In these conditions it could be more favorable for each of the
pairing fermions to stay close to its Fermi surface and, differently from the
usual BCS state, for the Cooper pair to have a non zero total momentum. For
this reason in this state the gap varies in space, the ground state is
inhomogeneous and a crystalline structure might be formed. This situation was
considered for the first time by Fulde, Ferrell, Larkin and Ovchinnikov, and
the corresponding state is called LOFF. The spontaneous breaking of the space
symmetries in the vacuum state is a characteristic feature of this phase and is
associated to the presence of long wave-length excitations of zero mass. The
situation described here is of interest both in solid state and in elementary
particle physics, in particular in Quantum Chromo-Dynamics at high density and
small temperature. In this review we present the theoretical approach to the
LOFF state and its phenomenological applications using the language of the
effective field theories.


title:
Statistical approach for unpolarized fragmentation functions for the
  octet baryons

abstract:
  A statistical model for the parton distributions in the nucleon has proven
its efficiency in the analysis of deep inelastic scattering data, so we propose
to extend this approach to the description of unpolarized fragmentation
functions for the octet baryons. The characteristics of the model are
determined by using some data on the inclusive production of proton and
$\Lambda$ in unpolarized deep inelastic scattering and a next-to-leading
analysis of the available experimental data on the production of unpolarized
octet baryons in $e^+e^-$ annihilation. Our results show that both parton
distributions and fragmentation functions are compatible with the statistical
approach, in terms of a few free parameters, whose interpretation will be
discussed.