title: The vector coupling in IR region from splittings in bottomonium

abstract:
  The splittings $1D-1P, 1F-1P, 2D-2P$ are shown to be the most convenient
characteristics to determine the vector coupling in IR region. In background
perturbation theory the splitting $\Delta =1D -1P$ appears to be in agreement
with $\Delta (\exp) =261.1 \pm 2.2$ MeV only for large freezing value,
$\alpha_{crit} \cong 0.60$, which corresponds to $\Lambda_{\bar{MS}} (2$-loop,
$n_f=5)\cong 240$ MeV $(\alpha_s(M_Z) =0.1193(2)$. The masses $M_{cog}
(1F)=10362\pm 3$ MeV and $M_{cog} (2D) =10452\pm 4 $ MeV are predicted.


title: QCD saturation in the dipole sector with correlations

abstract:
  In this paper we study the description of saturation in Balitsky,
Jalilian-Marian, Iancu, McLerran, Weigert, Leonidov and Kovner (B-JIMWLK)
picture when restricted to observables made up only from dipole operators. We
derive a functional form of the evolution equation for the dipole probability
distribution and find a one-parameter family of exact solutions to the dipole
evolution equations.


title:
Computing non-factorizable pQCD corrections to hadronic B^0 - \bar B^0
  mixing matrix element within sum rules technique for three point Green
  functions

abstract:
  In this talk I report on the results of a recent calculation of the \alpha_s
corrections to a three-point correlation function at the three-loop level in
QCD perturbation theory, which allows one to extract the matrix element of B^0
-\bar B^0 mixing with next-to-leading order accuracy. The evaluation of mixing
parameter at NLO allows for a consistent analysis of B^0 -\bar B^0 mixing since
the coefficient functions of the effective Hamiltonian for this process are
known with the necessary accuracy.


title: Diffractive Higgs production and related processes

abstract:
  We review the signal, and the $b\bar{b}$ background, for Higgs production by
the exclusive double-diffractive process, $pp \to p+H+p$, and its subsequent $H
\to b\bar{b}$ decay, at the LHC. We discuss the production of Higgs bosons in
both the SM and MSSM. We show how the predicted rates may be checked at the
Tevatron by observing the exclusive double-diffractiveproduction of dijets, or
$\chi_c$ or $\chi_b$ mesons, or $\gamma \gamma$ pairs.


title: Perturbative neutrino pair creation by an external source

abstract:
  We consider the rate of fermion-antifermion pair creation by an external
field. We derive a rate formula that is valid for a coupling with arbitrary
vector and axial vector components to first order in perturbation theory. This
is then applied to study the creation of neutrinos by nuclear matter, a problem
with astrophysical relevance. We present an estimate for the creation rate per
unit volume, compare this to previous results and comment on the role of the
neutrino mass.


title:
Radiative generation of R-parity violating Yukawa-like interactions from
  supersymmetry breaking

abstract:
  Yukawa-like R-parity violating (RPV) couplings are generated as effective
operators with a typical strength of ${\cal O}(10^{-3})$ through loops
involving the scalars, the gauginos and the soft supersymmetry breaking RPV
interactions. Neutrino masses and other phenomenological implications of such a
scenario are discussed.


title: The $[\bf{56},4^+]$ baryons in the $1/N_c$ expansion

abstract:
  Using the $1/N_c$ expansion of QCD we analyze the spectrum of positive parity
resonances with strangeness $S = 0, -1, -2$ and -3 in the 2-3 GeV mass region,
supposed to belong to the $[\textbf{56},4^+]$ multiplet. The mass operator is
similar to that of $[\textbf{56},2^+]$, previously studied in the literature.
The analysis of the latter is revisited. In the $[\textbf{56},4^+]$ multiplet
we find that the spin-spin term brings the dominant contribution and that the
spin-orbit term is entirely negligible in the hyperfine interaction, in
agreement with constituent quark model results. More data are strongly
desirable, especially in the strange sector in order to fully exploit the power
of this approach.


title:
Angular Analysis of Lambda_b Decays into Lambda v(1-) Applications to
  Time-Odd Observables and CP violation in Lambda_b Decays (I)

abstract:
  A complete study of teh angualr distributions of the process Lambda_b to
Lambda V(1-) with lambda to p pi- and V(J/Psi) to l+l- or V(rho0,omega, phi) to
pi+ pi-, K+K- is performed. Emphasis is put on the initial Lambda-b
polarization produced in the proton-proton collisions and, without any
dynamical assumption, polarized density-matrices of the vector-mesons V are
derived and help to construct T-odd observables which allow us to perform tests
of both Time-Reversal and CP violation.


title:
Boundary behaviour of the four-point function in the 3-dimensional
  Gross-Neveu model

abstract:
  We consider the $N$-components 3-dimensional massive Gross-Neveu model
compactified in one spatial direction, the system being constrained to a slab
of thickness $L$. We derive a closed formula for the renormalized $L$-dependent
four-point function at vanishing external momenta in the large-N limit (the
effective coupling constant), using bag-model boundary conditions. For values
of the fixed coupling constant in absence of boundaries $\lambda \geq \lambda_c
\simeq 19.16$, we obtain small-distance asymptotic freedom (for $L \to 0$) and
a singularity for a length $L^{(c)}$ such that $2.07 m^{-1} < L^{(c)} \lesssim
2.82 m^{-1}$, $m$ being the fermionic mass. Taking for $m$ an average of the
masses of the quarks composing the proton, we obtain a "confining" length
$L^{(c)}_p$ which is comparable with an estimated proton diameter.


title: Saturation: Colour Glass Condensate and colour sources

abstract:
  In the recent years we have seen a lot of activity around systems and
experiments, like DIS at HERA or the heavy-ion experiments at RHIC, involving a
large number of partons due to the high enery and/or the high number of
participants of those experiments. The main problem in this regime is that of
the high parton densities. In fact, in most of the models of multiparticle
production, two contributions to the multiplicity are considered: one
proportional to the number of participant nucleons, $N_{part}$, and a second
one proportional to the number of collisions, $N_{part}^{4/3}$. In order to get
the right multiplicities at RHIC it is necessary to lower the second
contribution. A possible mechanism for this is the saturation. Here, I am going
to review the saturation of parton densities in the initial state, in two
different frameworks: the Colour Glass Condensate %(CGC) and the string
clustering.


title: RG solutions for \alpha_s at large N_c in d=3+1 QCD

abstract:
  Solutions of RG equations for $\beta(\alpha)$ and $\alpha(Q)$ are found in
the class of meromorphic functions satisfying asymptotic conditions at large
$Q$ (resp. small $\alpha)$, and analyticity properties in the $Q^2$ plane. The
resulting $\alpha_R(Q)$ is finite in the Euclidean $Q^2$ region and agrees well
at $Q\geq 1$ GeV with the $\bar{MS} \alpha_s(Q)$.


title:
Effects of Fermion Localization in Higgsless Theories and Electroweak
  Constraints

abstract:
  Extra-dimensional Higgsless models with electroweak symmetry breaking through
boundary conditions generically have difficulties with electroweak precision
constraints, when the fermions are localized to the ``branes'' in the fifth
dimension. In this paper we show that these constraints can be relaxed by
allowing the light fermions to have a finite extent into the bulk of the fifth
dimension. The $T$ and $U$ electroweak parameters can be naturally suppressed
by a custodial symmetry, while the $S$ parameter can be made to vanish through
a cancellation, if the leakage into the bulk of the light gauge fields and the
light left-handed fermion fields are of the same size. This cancellation is
possible while allowing realistic values for the first two generations of
fermion masses, although special treatment is probably required for the top
quark. We present this idea here in the context of a specific continuum
theory-space model; however, it can be applied to any five-dimensional
Higgsless model, either with a flat or a warped background.


title:
Generalized Quantum Field Theory as an Alternative Approach To The
  Problem of Composite Particles Reaction

abstract:
  A generalization of the Heisenberg algebra has been recently constructed.
  This generalized algebra has a characteristic function which depends on one
of its generators. When this function is linear, $qJ_0+s$, it is possible to
construct a Generalized Quantum Field Theory (GQFT) that creates at a
space-time a composite particle.In the present work we show that a generalized
QFT can also be constructed consistently, even with a nonlinear characteristic
function and leads to better results as long as we have more parameters to
(possibly) fit the spectrum of a real composite particle.


title: Supernova neutrinos: production, propagation and oscillations

abstract:
  I shall review some of the recent results concerning the astrophysics of a
core collapse supernova (SN) and neutrino oscillations. Neutrinos play an
important role in the SN explosion, and they also carry most of the energy of
the collapse. The energy spectra of neutrinos and antineutrinos arriving at the
Earth incorporate information on the primary neutrino fluxes as well as the
neutrino mixing scenario. The analysis of neutrino propagation through the
matter of the supernova and the Earth, combined with the observation of a
neutrino burst from a galactic SN, enables us to put limits on the mixing angle
$\theta_{13}$ and identify whether the mass hierarchy is normal or inverted.
The neutrino burst also acts as an early warning signal for the optical
observation, and in addition allows us to have a peek at the shock wave while
still inside the SN mantle.


title:
Cronin effect and energy conservation constraints in pA collisions at
  LHC and RHIC

abstract:
  We evaluate the Cronin effect in pA collisions at the CERN LHC and at RHIC in
the framework of Glauber-Eikonal model of initial state multiparton
interactions. Taking carefully into account all kinematical constraints of each
multi-parton interaction process we obtain a softening of the spectrum of
produced partons, improving in this way the agreement of the model with the
recent measurements of pi0 production in d+Au collisions at sqrt{s}=200 AGeV.


title: Hard parton damping in hot QCD

abstract:
  The gluon and quark collisional widths in hot QCD plasmas are discussed with
emphasis on temperatures near Tc, where the coupling is large. Considering the
effect on the entropy, which is known from lattice calculations, it is argued
that the width of the partons, which in the perturbative limit is given by
gamma ~ g^2 ln(1/g) T, should be sizeable at intermediate temperatures but has
to be small close to Tc. This behavior implies a substantial reduction of the
radiative energy loss of jets near Tc.


title: Two-Loop Bethe Logarithms for Higher Excited S Levels

abstract:
  Processes mediated by two virtual low-energy photons contribute quite
significantly to the energy of hydrogenic S states. The corresponding level
shift is of the order of (alpha/pi)^2 (Zalpha)^6 m_e c^2 and may be ascribed to
a two-loop generalization of the Bethe logarithm. For 1S and 2S states, the
correction has recently been evaluated by Pachucki and Jentschura [Phys. Rev.
Lett. vol. 91, 113005 (2003)]. Here, we generalize the approach to higher
excited S states, which in contrast to the 1S and 2S states can decay to P
states via the electric-dipole (E1) channel. The more complex structure of the
excited-state wave functions and the necessity to subtract P-state poles lead
to additional calculational problems. In addition to the calculation of the
excited-state two-loop energy shift, we investigate the ambiguity in the energy
level definition due to squared decay rates.


title: Indirect Searches for Kaluza-Klein Dark Matter

abstract:
  In this talk, we discuss the potential for the indirect detection of
Kaluza-Klein dark matter using neutrino telescopes and cosmic positron
experiments. We find that future kilometer-scale neutrino telescopes, such as
IceCube, as well as future experiments capable of measuring the cosmic positron
spectrum, such as PAMELA and AMS-02, will be quite sensitive to this scenario.
Current data from the HEAT experiment can also be explained by the presence of
Kaluza-Klein dark matter in the Galactic halo.


title:
Top Spin Correlations in Theories with Large Extra-Dimensions at the
  Large Hadron Collider

abstract:
  In theories with large extra dimensions, we study the top spin correlations
at the Large Hadron Collider. The s-channel process mediated by graviton
Kaluza-Klein modes contributes to the top-antitop pair production in addition
to the Standard Model processes, and affects the resultant top spin
correlations. We calculated the full density matrix for the top-antitop pair
production. With the fundamental scale of the extra dimensional theory below 2
TeV, we find a sizable deviation of the top spin correlations from the Standard
Model one.


title: Conformal Technicolor

abstract:
  We point out that the flavor problem in theories with dynamical electroweak
symmetry breaking can be effectively decoupled if the physics above the TeV
scale is strongly conformal, and the electroweak order parameter has a scaling
dimension d = 1 + epsilon with epsilon \simeq 1/few. There are many
restrictions on small values of epsilon: for epsilon << 1, electroweak symmetry
breaking requires a fine-tuning similar to that of the standard model; large-N
conformal field theories (including those obtained from the AdS/CFT
correspondence) require fine-tuning for d < 2; `walking technicolor' theories
cannot have d < 2, according to gap equation analyses. However, strong small-N
conformal field theories with epsilon \simeq 1/few avoid all these constraints,
and can give rise to natural dynamical electroweak symmetry breaking with a top
quark flavor scale of order 10^{1/epsilon} TeV, large enough to decouple
flavor. Small-N theories also have an acceptably small Peskin-Takeuchi S
parameter. This class of theories provides a new direction for dynamical
electroweak symmetry breaking without problems from flavor or electroweak
precision tests. A possible signal for these theories is a prominent scalar
resonance below the TeV scale with couplings similar to a heavy standard model
Higgs.


title:
Double-lepton polarization asymmetries in Lambda_b -> Lambda l^+ l^-
  decay

abstract:
  Double-lepton polarization asymmetries in (Lambda_b -> Lambda l^+ l^-) decay
are calculated using a general, model independent form of the effective
Hamiltonian. The sensitivities of these asymmetries to the new Wilson
coefficients are studied in detail. Furthermore, the correlations between
averaged double-lepton polarization asymmetry and branching ratio are analyzed.
It is shown that there exist certain regions of the new Wilson coefficients
where new physics can be established by measuring the double-lepton
polarization asymmetries only.


title: Why Are Neutrinos Light? -- An Alternative

abstract:
  We review the recent proposal that neutrinos are light because their masses
are proportional to a low scale, f, of lepton flavor symmetry breaking. This
mechanism is testable because the resulting pseudo-Goldstone bosons, of mass
m_G, couple strongly with the neutrinos, affecting the acoustic oscillations
during the eV era of the early universe that generate the peaks in the CMB
radiation. Characteristic signals result over a very wide range of (f, m_G)
because of a change in the total relativistic energy density and because the
neutrinos scatter rather than free-stream. Thermodynamics allows a precise
calculation of the signal, so that observations would not only confirm the
late-time neutrino mass mechanism, but could also determine whether the
neutrino spectrum is degenerate, inverted or hierarchical and whether the
neutrinos are Dirac or Majorana.
  The flavor symmetries could also give light sterile states. If the masses of
the sterile neutrinos turn on after the MeV era, the LSND oscillations can be
explained without upsetting big bang nucleosynthesis, and, since the sterile
states decay to lighter neutrinos and pseudo-Goldstones, without giving too
much hot dark matter.


title:
Soft-Collinear Factorization and Sudakov Resummation of Heavy Meson
  Decay Amplitudes with Effective Field Theories

abstract:
  In this thesis we present an introduction to Soft-Collinear Effective Theory,
which can be used to prove (or disprove) factorization theorems to all orders
in the strong coupling constant for some B decays into light and energetic
particles. Specifically, the factorizable amplitudes for inclusive B->X_u l nu
and exclusive B->gamma l nu are calculated in renormalization-group improved
perturbation theory to first non-trivial order. Form factors encoding the
exclusive decay amplitudes for B->P l nu and B->V l nu (P=light pseudoscalar
meson, V=light vector meson) are studied and proved to be dominated by the
non-factorizable Feynman mechanism.


title: Slepton Trapping at the Large Hadron and International Linear Colliders

abstract:
  We consider supergravity with a gravitino lightest supersymmetric particle.
The next-to-lightest supersymmetric particle (NLSP) decays to the gravitino
with lifetime naturally in the range 10^4 - 10^8 s. However, cosmological
constraints exclude lifetimes at the upper end of this range and disfavor
neutralinos as NLSPs, leaving charged sleptons with lifetimes below a year as
the natural NLSP candidates. Decays to gravitinos may therefore be observed by
trapping slepton NLSPs in water tanks placed outside Large Hadron Collider
(LHC) and International Linear Collider (ILC) detectors and draining these
tanks periodically to underground reservoirs where slepton decays may be
observed in quiet environments. We consider 0.1, 1, and 10 kton traps and
optimize their shape and placement. We find that the LHC may trap tens to
thousands of sleptons per year. At the ILC, these results may be improved by an
order of magnitude in some cases by tuning the beam energy to produce slow
sleptons. Precision studies of slepton decays are therefore possible and will
provide direct observations of gravitational effects at colliders; percent
level measurements of the gravitino mass and Newton's constant; precise
determinations of the gravitino's contribution to dark matter and supersymmetry
breaking's contribution to dark energy; quantitative tests of supergravity
relations; and laboratory studies of Big Bang nucleosynthesis and cosmic
microwave background phenomena.


title: Nuclear Antishadowing in Neutrino Deep Inelastic Scattering

abstract:
  The shadowing and antishadowing of nuclear structure functions in the
Gribov-Glauber picture is due respectively to the destructive and constructive
interference of amplitudes arising from the multiple-scattering of quarks in
the nucleus. The effective quark-nucleon scattering amplitude includes Pomeron
and Odderon contributions from multi-gluon exchange as well as Reggeon
quark-exchange contributions. We show that the coherence of these
multiscattering nuclear processes leads to shadowing and antishadowing of the
electromagnetic nuclear structure functions in agreement with measurements.
This picture leads to substantially different antishadowing for charged and
neutral current reactions, thus affecting the extraction of the weak-mixing
angle $\theta_W$. We find that part of the anomalous NuTeV result for
$\theta_W$ could be due to the nonuniversality of nuclear antishadowing for
charged and neutral currents. Detailed measurements of the nuclear dependence
of individual quark structure functions are thus needed to establish the
distinctive phenomenology of shadowing and antishadowing and to make the NuTeV
results definitive.


title:
Hadronic production of the $P$-wave excited $B_c$-states
  ($B_{cJ,L=1}^*$)

abstract:
  Adopting the complete $\alpha_s^4$ approach of the perturbative QCD (pQCD)
and updated parton distribution functions, we have estimated the hadronic
production of $P$-wave excited $B_c$-states ($B_{cJ,L=1}^*$). In the estimate,
special care on the relation of the production amplitude to the derivative of
wave function at origin of the potential model is payed. For experimental
references, main uncertainties are discussed, and the total cross sections and
the distributions of the production with reasonable cuts at the energies of
Tevatron and LHC are computed and presented. The results show that $P$-wave
production may contribute to the $B_c$-meson production indirectly by a factor
about 0.5 of the direct production, and with such a big cross section, it is
worth further to study the possibility to observe the $P$-wave production
itself experimentally.


title: On $\phi_3$ Measurements Using $B^- \to D^* K^-$ Decays

abstract:
  We point out that in decays of the type $B^- \to D^* K^-$, where the neutral
$D^*$ meson is an admixture of $D^{*0}$ and $\bar{D}^{*0}$, there is an
effective strong phase difference of $\pi$ between the cases that the $D^*$ is
reconstructed as $D\pi^0$ and $D\gamma$. We consider the consequences for
measurements of $\phi_3$ using these modes, some of which are profound and
beneficial.


title: Radiative corrections in SUSY phenomenology

abstract:
  We discuss some aspects of the radiative corrections in the phenomenology of
the minimal SUSY standard model, by reviewing two recent studies. (1) The full
one-loop corrections to the Higgs boson decays into charginos are presented,
with emphasis on the renormalization of the chargino sector, including of their
mixing matrices. (2) The two-loop O(alpha_s tan beta) corrections to the b -> s
gamma decay in models with large tan beta, mainly those to the charged Higgs
boson contributions, are discussed. Exact two-loop result is compared to an
approximation used in previous studies.


title: Phase contribution to LFV

abstract:
  We analyze the phase effect of the neutrino Yukawa matrix in the context of
the Minimal Supersymmetric Standard Model with right-handed neutrinos. Its
effect can change the Lepton Flavor Violation branching ratios by a few order
of magnitude.


title: Hadronic Final States

abstract:
  A summary is given of the work which was presented in the working group C
"Hadronic Final States" at the DIS04 workshop (Strbske Pleso, Slovakia, April
14-18, 2004). Progress in experimental tests and the theoretical development of
perturbative and non-perturbative QCD is reported.


title: Global Defects In Theories With Lorentz Symmetry Violation

abstract:
  We study global topological defects in the Jacobson-Corley model which breaks
Lorentz symmetry and involves up to fourth order derivatives. There is a window
in the parameter space in which no solution exists. Otherwise, different
profiles are allowed for the same values of the parameters. For a scale of
  Lorentz violation much higher than the scale of gauge symmetry breaking, the
energy densities are higher, of the same order or smaller than in the usual
case for domain walls, cosmic strings and hedgehogs respectively. Possible
cosmological implications are suggested.


title: Final state interactions for B => VV charmless decays

abstract:
  We estimate final state interactions in the B-meson decays into two light
vector mesons by the Regge model. We consider Pomeron exchange and charmed
Regge trajectories that can relate intermediate charmed particles to the final
state. The Regge poles have various helicity-flip residues, which allows a
change from the longitudinal to transverse polarization. In this way a
significant reduction of the longitudinal polarization fraction can be
produced. In the factorization approximation we find agreement with recent data
from the BaBar and Belle collaborations in the B => K* phi decay channel, as a
result of an appropriate choice of semileptonic form factors and Regge
exchanges. On the other hand, data for the K* rho decay channels appear more
elusive. The soft effects discussed in the present paper are based on a model
of Regge trajectories that is shown to reproduce correctly in the non-charmed
case the Regge phenomenology of light mesons.


title: Large transverse momentum suppression at RHIC: Shadowing and absorption

abstract:
  We propose a model of suppression of $\pi^0$'s based on two different
effects: at low $p_T$ we take into account the shadowing corrections, which are
non-linear and essential for the description of the inclusive spectra, while at
large $p_T$ the suppression is produced through the interaction of the large
$p_T$ pion with the dense medium created in the collision. The main features of
the data on $AuAu$ and $dAu$ collisions at RHIC energies are reproduced both at
mid and at forward rapidities.


title: Polygonal Derivation of the Neutrino Mass Matrix

abstract:
  Representations of the symmetry group D_n of the n-sided regular polygon have
generic multiplication rules if n is prime. Using D_n with n=5 or greater, a
particular well-known form of the Majorana neutrino mass matrix is derived.


title: Universal Higher Order QED Corrections to Polarized Lepton Scattering

abstract:
  We calculate the universal radiative QED corrections to polarized lepton
scattering for general scattering cross sections in analytic form. The flavor
non--singlet and singlet radiation functions are calculated to $O((\alpha {\rm
L})^5)$. The resummation of the non--singlet and singlet contributions to the
QED--anomalous dimensions $\propto(\alpha \ln^2(x))^k$ is performed to all
orders. Numerical results are presented for the individual radiation functions.
Applications to polarized deeply inelastic lepton--nucleon scattering are
given.


title:
Describing Recently Discovered Narrow States as Quarkonia Using a
  Potential Model

abstract:
  We examine to what extent several recently discovered narrow resonances can
be interpreted as conventional $c\bar{c}$ bound states describable using a
potential model. In doing so, we use a semirelativistic approach, which
includes both the $v^2/c^2$ and QCD one-loop corrections to the short distance
potential and a long range linear potential together with its scalar and vector
$v^2/c^2$ spin-dependent terms.


title: Top-pions and single top production at HERA and THERA

abstract:
  We study single top quark production at the HERA and THERA colliders as
coming from the FCNC vertices tcgamma and tcZ that appear at one loop level in
Topcolor-assisted technicolor models (TC2). In contrast with previous
expectations, we find that the production cross section is of order 10^-6 pb
for HERA and 10^-4 pb for THERA (even lower that the SM prediction). Therefore,
none of the two colliders are capable to probe the pseudoscalar top-pion or the
scalar top-higgs predicted in TC2 models via single top production.


title: Hydrodynamics of the Vacuum

abstract:
  Hydrodynamics is the appropriate "effective theory" for describing any fluid
medium at sufficiently long length scales. This paper treats the vacuum as such
a medium and derives the corresponding hydrodynamic equations. Unlike a normal
medium the vacuum has no linear sound-wave regime; disturbances always
"propagate" nonlinearly. For an "empty vacuum" the hydrodynamic equations are
familiar ones (shallow water-wave equations) and they describe an
experimentally observed phenomenon -- the spreading of a clump of
zero-temperature atoms into empty space. The "Higgs vacuum" case is much
stranger; pressure and energy density, and hence time and space, exchange
roles. The speed of sound is formally infinite, rather than zero as in the
empty vacuum. Higher-derivative corrections to the vacuum hydrodynamic
equations are also considered. In the empty-vacuum case the corrections are of
quantum origin and the post-hydrodynamic description corresponds to the
Gross-Pitaevskii equation. I conjecture the form of the post-hydrodynamic
corrections in the Higgs case. In the 1+1-dimensional case the equations
possess remarkable `soliton' solutions and appear to constitute a new exactly
integrable system.


title: B->X_s l^+l^- in the MSSM at NNLO

abstract:
  We present the results of the calculation of QCD corrections to the matching
conditions for the Wilson coefficients of operators mediating the transition
b->s l^+l^- in the context of the MSSM. Within a scenario with decoupled heavy
gluino the calculated contributions together with those present already in the
literature allow for the first time a complete NNLO analysis of B->X_s l^+l^-.
We study the impact of the QCD corrections and the reduction of renormalization
scale dependencies for the dilepton invariant mass distribution and the
forward-backward asymmetry in the inclusive decay B->X_s l^+l^- restricting the
analysis to the "low-s" region and small values of tan(beta). The NNLO
calculation allows to decrease the theoretical uncertainties related to the
renormalization scale dependence below the size of supersymmetric effects in
B->X_s l^+l^- depending on their magnitude. While it will be difficult to
distinguish the MSSM expectations for the branching ratio from the Standard
Model ones, this can become possible in the dilepton invariant mass
distribution depending on the MSSM parameters and \hat{s}. In this respect the
position of the zero of the forward-backward asymmetry s_0 is even more
promising.


title: The Higgs sector in the Next-to-MSSM

abstract:
  We study the Higgs sector in the Next-to-Minimal Supersymmetric Standard
Model with and without explicit CP violation, focusing on the case of weak
scale expectation value of the singlet field. We scan a wide range of the
parameter space to find out allowed regions by requiring that the electroweak
vacuum be the global minimum of the effective potential and that the neutral
Higgs bosons with moderate gauge coupling be heavier than the lower bound on
the Higgs boson in the standard model. Among the allowed parameters, some sets
admit the situation in which the light Higgs bosons couple with the $Z$ boson
too weak to be found in present collider experiments. For such parameter sets,
we find an upper bound on the charged Higgs mass which is reachable in LHC.


title: QCD Sum Rules of Pentaquarks

abstract:
  QCD sum rule is applied to the pentaquark spectroscopy. It is concluded that
no positive parity state is seen in low energy region, while there may exist
negative parity states at around 1.5 GeV. Choice of interpolating local
operators and relation to the lattice calculations are discussed.


title: Sigma Meson Cloud and Proton's Light Flavor Sea Quarks

abstract:
  We take into account the sigma meson cloud effect in the meson cloud model to
calculate the distributions of light flavor sea quarks in the proton. Our
calculation gives a better description of the data for $\bar{d}(x)/\bar{u}(x)$.
We also provide a picture that the probability of finding a physical proton in
a Fock state $|N\omega> $ is reasonable small with a smaller cutoff
$\Lambda_{\omega}$.


title:
The perturbative QCD factorization approach in high energy nuclear
  collisions

abstract:
  I discuss the systematic modifications to the perturbative QCD factorization
approach in high energy l+A, p+A and A+A reactions. These include transverse
momentum diffusion manifest in the Cronin effect and a small increase in the
dijet acoplanarity; nuclear size enhanced power corrections that lead to
shadowing in deeply inelastic scattering and suppression of single and double
inclusive hadron production at forward rapidity at RHIC but disappear as a
function of the transverse momentum; inelastic attenuation of the jet cross
sections or jet quenching that persists to much higher pT.


title: pp Elastic Scattering at LHC in Near Forward Direction

abstract:
  We predict pp elastic differential cross section at LHC at the c.m. energy
sqrt(s) = 14 TeV and momentum transfer range |t| = 0 - 10 GeV^2, which is
planned to be measured by the TOTEM group. The field theory model underlying
our phenomenological investigation describes the nucleon as a composite object
with an outer cloud of quark-antiquark condensate, an inner core of topological
baryonic charge, and a still smaller quark-bag of valence quarks. The model
satisfactorily describes the asymptotic behavior of total cross section as a
function of s and the real to imaginary ratio of the forward scattering
amplitude as a function of s. It also describes well the the measured
antiproton-proton elastic differential cross sections at sqrt(s)= 546 GeV, 630
GeV, and 1.8 TeV. The large |t| elastic amplitude of the model incorporates the
BFKL Pomeron in next to leading order approximation, the perturbative
dimensional counting behavior, and the confinement of valence quarks in a small
region within the nucleon.


title: Suppressed neutrino oscillations and large lepton asymmetries

abstract:
  It is shown that hypothetical neutrino-majoron coupling can suppress neutrino
flavor oscillations in the early universe, in contrast to the usual weak
interaction case. This reopens a window for a noticeable cosmological lepton
asymmetry which is forbidden for the large mixing angle solution in the case of
standard interactions of neutrinos.


title:
Comparison of electron-nucleus quasi-elastic cross sections using
  spectral functions with (e,e') data from 0.5 GeV to 1.5 GeV and effects on
  neutrino quasi-elastic cross sections

abstract:
  We carry out a relativistic calculation of the cross sections of electron-16O
and -12C quasi-elastic scattering and quasi-free Delta production and compare
with the (e,e') data systematically in the wide energy range of 0.5 - 1.5 GeV.
Using the same formalism, we examine the mu-neutrino quasi-elastic scattering
from 16O. The model incorporating the nuclear correlation effects agrees better
with the electron-nucleus scattering data than a uniform Fermi-Gas model. In
the neutrino quasi-elastic scattering, the nuclear correlation has an
appreciable effect on the cross section of high-energy scattered leptons, and
it may have an important consequence in the neutrino oscillation measurements
aiming at a few % precision.


title:
Damping of electromagnetic waves due to electron-positron pair
  production

abstract:
  The problem of the backreaction during the process of electron-positron pair
production by a circularly polarized electromagnetic wave propagating in a
plasma is investigated. A model based on the relativistic Boltzmann-Vlasov
equation with a source term corresponding to the Schwinger formula for the pair
creation rate is used. The damping of the wave, the nonlinear up-shift of its
frequency due to the plasma density increase and the effect of the damping on
the wave polarization and on the background plasma acceleration are
investigated as a function of the wave amplitude.


title: Mass and Decay Constant of $I=1/2$ Scalar Meson In QCD Sum Rule

abstract:
  We calculate the mass and decay constant of $I=1/2$ scalar mesons composed of
quark-antiquark pairs based on QCD sum rule. The quauk-antiquark pairs can be
$s\bar{q}$ or $q\bar{s}$ ($q=u,d$) in quark model, the quantum numbers of spin
and orbital angular momentum are S=1, L=1. We obtain the mass of the ground
sate in this channel is $1.410\pm 0.049$GeV. This result favors that
$K_{0}^{\ast}(1430)$ is the lowest scalar state of $s\bar{q}$ or $q\bar{s}$. We
also predict the first excited scalar resonance of $s\bar{q}$ is larger than
2.0 GeV.


title:
Next-to-leading-order predictions for D^{*+-} plus jet photoproduction
  at DESY HERA

abstract:
  We study the photoproduction of a D^{*+-} meson in association with a hadron
jet at next-to-leading order in the parton model of QCD with non-perturbative
fragmentation functions extracted from LEP1 data of e^+e^- annihilation. The
transverse-momentum and rapidity distributions recently measured at DESY HERA
in various kinematic ranges nicely agree with our theoretical predictions. This
provides a useful test of the universality and the scaling violations of the
fragmentation functions predicted by the factorization theorem. These
comparisons also illustrate the significance of the charm component in the
resolved photon. This is elaborated by investigating the cross-section
distributions in x_obs^gamma and cos(theta^*).


title: Pentaquarks in string dynamics

abstract:
  The masses of $uudd\bar s $, $uudd\bar d$, and $uuss\bar d$ pentaquarks are
evaluated in a framework of both the Effective Hamiltonian approach to QCD and
spinless Salpeter using the Jaffe-Wilczek diquark approximation and the string
interaction for the diquark-diquark-antiquark system. The masses of the light
pentaquarks are found to be in the region above 2 GeV. The similar calculations
yield the mass of $[ud]^2\bar c$ pentaquark $\sim$ 3250 MeV and $[ud]^2\bar b$
pentaquark $\sim$ 6509 MeV.


title: Quartic gauge couplings from e+e- -> WWZ

abstract:
  Effective anomalous quartic gauge couplings on tree level appear, e.g., in a
strong interacting Higgs scenario. We present a status report on our study on
triple boson production sensitive to these couplings. The study is done for
parameters of a future linear collider.


title:
Double beta decay versus cosmology: Majorana CP phases and nuclear
  matrix elements

abstract:
  We discuss the relation between the absolute neutrino mass scale, the
effective mass measured in neutrinoless double beta decay, and the Majorana CP
phases. Emphasis is placed on estimating the upper bound on the nuclear matrix
element entering calculations of the double beta decay half life. Consequently,
one of the Majorana CP phases can be constrained when combining the claimed
evidence for neutrinoless double beta decay with the neutrino mass bound from
cosmology.


title:
Higgs Boson Production in gamma-gamma Collisions via Resolved Photon
  Contributions

abstract:
  We studied single Higgs boson production in $\gamma\gamma$ collisions
proceeding via the hadronic content of the photon. For SM Higgs masses of
current theoretical interest, the resolved photon contributions are
non-negligible in precision cross section measurements. We found that
production of the heavier Higgs bosons H^0 and A^0 of the MSSM can probe
regions of the SUSY parameter space that will complement other measurements.
Finally, we showed that associated t H^\pm production in gamma-gamma collisions
can be used to make an accurate determination of tan(beta) for low and high
tan(beta)by precision measurements of the gamma gamma to H^\pm t +X cross
section.


title: The White Pomeron, Color Sextet Quarks and Cosmic Ray Anomalies

abstract:
  I introduce the critical pomeron theory ("white pomeron") proposed by Alan
White, with its prediction of excessive WW and ZZ production at the LHC
especially by double pomeron exchange (DPE), which is a crucial test. This
theory implies dramatic effects in cosmic rays, possibly explaining the knee
and high ET jet excesses. Some of the ultra high energy (UHE) cosmic rays may
be "Superbaryons" made of color sextet Quarks, and most (all?) UHE collisions
in the atmosphere may produce W's and Z's.


title: Pedagogical Introduction to Extra Dimensions

abstract:
  Extra dimensions provide a new window on a number of problems faced by the
Standard Model. The following provides an introduction to this very broad
subject aimed at experimental graduate students and post-docs based on a
lecture given at the 2004 SLAC Summer Institute.


title:
The QCD phase diagram at nonzero baryon, isospin and strangeness
  chemical potentials: Results from a hadron resonance gas model

abstract:
  We use a hadron resonance gas model to study the QCD phase diagram at nonzero
temperature, baryon, isospin and strangeness chemical potentials. We determine
the temperature of the transition from the hadronic phase to the quark gluon
plasma phase using two different methods. We find that the critical
temperatures derived in both methods are in very good agreement. We find that
the critical surface has a small curvature. We also find that the critical
temperature's dependence on the baryon chemical potential at zero isospin
chemical potential is almost identical to its dependence on the isospin
chemical potential at vanishing baryon chemical potential. This result, which
holds when the chemical potentials are small, supports recent lattice
simulation studies. Finally, we find that at a given baryon chemical potential,
the critical temperature is lowered as either the isospin or the strangeness
chemical potential are increased. Therefore, in order to lower the critical
temperature, it might be useful to use different isotopes in heavy ion
collision experiments.


title: The SELEX Measurements in the Unified Picture for Hadron Spectra

abstract:
  We give an analysis of the experimental material presented by the SELEX
Collaboration to find the true place for the SELEX state $D_{sJ}^+$(2632) in
the unified picture for hadron spectra developed early. It is found that the
SELEX measurements are excellently incorporated in the unified picture for
hadron spectra. Our analysis shows that the measured values for the masses of
the SELEX state exactly coincide with the calculated masses of the states
living in the corresponding KK towers. We also found quite a natural but rather
model dependent explanation of the decay pattern for the SELEX state being
dominated by the $D_s^+\eta$ decay mode.


title: Determination of Light and Strange Quark Masses from Full Lattice QCD

abstract:
  We compute the light and strange quark masses m_l = (m_u+m_d)/2 and m_s,
respectively, in full lattice QCD with N_f=2 flavors of light dynamical quarks.
The renormalization constants, which convert bare quark masses into
renormalized quark masses, are computed nonperturbatively, including the effect
of quark-line disconnected diagrams. We obtain m_l=4.7(2)(3) MeV and
m_s=119(5)(8) MeV in the MSbar scheme at the scale 2 GeV.


title: Factorization of Hard Processes in QCD

abstract:
  We summarize the standard factorization theorems for hard processes in QCD,
and describe their proofs.


title: Scattering of shock waves in QCD

abstract:
  The cross section of heavy-ion collisions is represented as a double
functional integral with the saddle point being the classical solution of the
Yang-Mills equations with boundary conditions/sources in the form of two shock
waves corresponding to the two colliding ions. I develop the expansion of this
classical solution in powers of the commutator of the Wilson lines describing
the colliding particles and calculate the first two terms of the expansion.


title:
Correlated Isocurvature Fluctuation of Quintessence and Curvaton
  Scenario

abstract:
  We consider cosmic microwave background (CMB) anisotropy in models with
quintessence taking into account of isocurvature fluctuation in the
quintessence. It is shown that, if the primordial fluctuation of the
quintessence has a correlation with the adiabatic density fluctuations, CMB
angular power spectrum $C_l$ at low multipoles can be suppressed. Possible
scenario of generating correlated mixture of the quintessence and adiabatic
fluctuations is also discussed.


title: Angular momentum content of a virtual graviton

abstract:
  We show that a virtual graviton has a J=0 component, which serves to cancel
the J=2, J_z=0 component when the graviton is on shell. In contrast, a massive
graviton has no J=0 component either on or off shell. This difference is
responsible for the van Dam-Veltman-Zakharov discontinuity.


title: Final State Interactions in Hadronic B Decays

abstract:
  There exist many experimental indications that final-state interactions
(FSIs) may play a prominent role not only in charmful B decays but also in
charmless B ones. We examine the final-state rescattering effects on the
hadronic B decay rates and their impact on direct CP violation. The
color-suppressed neutral modes such as $B^0\to
D^0\pi^0,\pi^0\pi^0,\rho^0\pi^0,K^0\pi^0$ can be substantially enhanced by
long-distance rescattering effects. The direct CP-violating partial rate
asymmetries in charmless B decays to $\pi\pi/\pi K$ and $\rho\pi$ are
significantly affected by final-state rescattering and their signs are
generally different from that predicted by the short-distance approach. For
example, direct CP asymmetry in $B^0\to\rho^0\pi^0$ is increased to around 60%
due to final state rescattering effects whereas the short-distance picture
gives about 1%. Evidence of direct CP violation in the decay $\bar B^0\to
K^-\pi^+$ is now established, while the combined BaBar and Belle measurements
of $\bar B^0\to\rho^\pm\pi^\mp$ imply a $3.6\sigma$ direct CP asymmetry in the
$\rho^+\pi^-$ mode. Our predictions for CP violation agree with experiment in
both magnitude and sign, whereas the QCD factorization predictions seem to have
some difficulty with the data. Current data on $\pi K$ modes seem to violate
the isospin sum rule relation, suggesting the presence of electroweak penguin
contributions. We have also investigated whether a large transverse
polarization in $B\to \phi K^*$ can arise from the final-state rescattering of
$D^{(*)}\bar D_s^{(*)}$ into $\phi K^*$.


title:
Effect of CP violating phases on neutral Higgs boson phenomenology in
  the MSSM

abstract:
  In the MSSM with complex SUSY parameters we consider a specific case where
the second heaviest Higgs boson H_2 is SM like, while H_1 and H_3 are both
strongly mixed states of CP odd and CP even scalar fields. Such a scenario
could be probed at a Linear Collider via the mechanism e^+e^-\to H_1H_3.


title: Neutrinoless Double Beta Decay in Theories Beyond the Standard Model

abstract:
  Neutrinoless double beta decay pops up almost in any extension of the
standard model. It is perhaps the only process, which can unambiguously
determine whether the massive neutrinos are Majorana or Dirac type particles.
In addition from the lifetime of this decay, combined with sufficient knowledge
of the relevant nuclear matrix elements, one can set a constraint involving the
neutrino masses. Furthemore, if one incorporates the recent results of the
neutrino oscillation experiments, one can determine or set a stringent limit on
the neutrino mass scale. In addition one may obtain usefull information
regarding the presence of right handed currents and the right handed neutrino
mass scale. One can also constrain the parameters of supersymmetry and, in
particular, set limits in of R-parity violating couplings as well as get
information about extra dimensions.


title:
Possible non-decoupling effects of heavy Higgs bosons in e+ e- -> W+ W-
  within THDM

abstract:
  We discuss the origin of the nondecoupling effects of the heavy Higgs bosons
within the two Higgs doublet extension (THDM) of the Standard Model (SM) and
illustrate it by means of the one-loop calculation of the differential
cross-sections of the process e+ e- -> W+ W- in both the decoupling and the
non-decoupling regimes. We argue that there are many regions in the THDM
parametric space in which the THDM and SM predictions differ by several
percents and such effects could, at least in principle, be testable at the
future experimental facilities.


title: Generation of baryon inhomogeneities in the electroweak phase transition

abstract:
  It is known that baryon number inhomogeneities may arise as a consequence of
electroweak baryogenesis. Their geometry, size, and amplitude depend on the
parameters that characterize the baryogenesis mechanism, as well as on those
that determine the phase transition dynamics. We investigate this parametric
dependance. We show that in the case of the minimal supersymmetric standard
model, the geometry of the inhomogeneities most probably consists of spherical
regions of high density surrounded by low-density walls, in contrast to the
case of the minimal standard model. In this supersymmetric extension we find
that density contrasts of up to a factor of 100 may arise. This amplitude
increases for higher values of the latent heat or lower values of the bubble
wall tension, and can be significantly larger in different extensions of the
standard model. Such inhomogeneities may thus affect the dynamics of the
subsequent quark-hadron phase transition.


title: Theories with Extra Dimensions

abstract:
  We review some aspects of theories with compact extra dimensions. We consider
the motivation and the theoretical basis of Large, Universal and Warped Extra
Dimensions. We focus on those aspects that are potentially relevant in the
phenomenology at colliders.


title:
Electrophobic Lorentz invariance violation for neutrinos and the see-saw
  mechanism

abstract:
  In this talk we show how Lorentz invariance violation (LIV) can occur for
Majorana neutrinos, without inducing LIV in the charged leptons via radiative
corrections. Such ``electrophobic'' LIV is due to the Majorana nature of the
LIV operator together with electric charge conservation. Being free from the
strong constraints coming from the charged lepton sector, electrophobic LIV can
in principle be as large as current neutrino experiments permit. On the other
hand electrophobic LIV could be naturally small if it originates from LIV in
some singlet ``right-handed neutrino'' sector, and is felt in the physical
left-handed neutrinos via a see-saw mechanism.


title: Probing the nuclear gluon distribution with heavy quarks

abstract:
  The color dipole formulation provides an intuitive picture of hard processes
in high energy scattering. Most importantly, this approach allows one to
calculate nuclear effects in a parameter-free way. I review the relation
between the dipole approach and transverse momentum factorization and present
numerical results for open heavy flavor production in proton-proton and
proton-nucleus collisions. The cross section for heavy quark production off
nuclei is known to reflect gluon shadowing, but is also affected by higher
twist effects and by finite coherence length effects.


title:
Constraints on the Neutrino Parameters from the `Rise-up' in the Boron
  Neutrino Spectrum at Low Energies

abstract:
  The rise-up in boron neutrino spectrum at low energies has been studied
within the framework of `pure LMA' scenario. Indirect bounds on the spectral
`upturn' have been obtained from the available solar neutrino data. These
bounds have been used to demonstrate the efficacy of the precision measurements
of the `upturn' for further constraining the neutrino parameter space allowed
by SNO salt phase data. The sterile neutrino flux has been constrained in the
light of the recent 766.3 Ty KamLAND spectral data.


title: Recent progress on Higgs physics at a $\gamma\gamma$ collider

abstract:
  We review some recent developments in Higgs physics at a $\gamma\gamma$
collider. We begin with single Higgs boson production in $\gamma\gamma$
collisions proceeding via the hadronic content of the photon. For SM Higgs
masses of current theoretical interest, the resolved photon contributions are
non-negligible in precision cross section measurements. We found that
production of the heavier Higgs bosons, $H^0$ and $A^0$, of the MSSM can probe
regions of the SUSY parameter space that will complement other measurements. We
showed that associated $t H^\pm$ production in $\gamma\gamma$ collisions can be
used to make an accurate determination of $\tan\beta$ for low and high
$\tan\beta$ by precision measurements of the $\gamma\gamma \to H^\pm t +X $
cross section. We then reviewed recent progress on Higgs physics in direct
photon processes in which the Higgs bosons are produced via virtual loops.
Precision measurements of the magnitude and phase of the $H\gamma\gamma$
coupling at a photon collider can be used to determine Higgs parameters related
to physics beyond the SM.


title: Nonperturbative solution of Yukawa theory and gauge theories

abstract:
  Recent progress in the nonperturbative solution of (3+1)-dimensional Yukawa
theory and quantum electrodynamics and (1+1)-dimensional super Yang--Mills
theory is summarized.


title:
Rapidity distribution of gluons in the classical field model for heavy
  ion collisions

abstract:
  The rapidity distribution of gluons produced in heavy ion collisions is
studied by a numerical computation in 2+1-dimensional classical Yang-Mills
theory. By assuming that the classical source strength g^2 mu depends on
rapidity as g^4 mu^2 ~ exp(+- lambda y) and studying collisions of two nuclei
with different g^2 mu we find that the rapidity distribution of produced gluons
at central rapidities is very broad. The transverse energy is seen to decrease
even more slowly as a function of y than the multiplicity. We discuss these
results and the range in y and sqrt(s) where they are applicable in the light
of experimental results and other theoretical calculations.


title: The Temperature Dependence of the QCD Running Coupling

abstract:
  We study the running of the QCD coupling with the momentum squared ($Q^2$)
and the temperature scales in the high temperature limit ($T > T_{c}$), using a
mass dependent renormalization scheme to build the Renormalization Group
Equations. The approach used guaranty gauge invariance, through the use of the
Hard Thermal Loop approximation, and independence of the vertex chosen to
renormalize the coupling. In general, the dependence of the coupling with the
temperature is not logarithmical, although in the region $Q^2 \sim T^2$ the
logarithm approximation is reasonable. Finally, as known from Debye screening,
color charge is screened in the coupling. The number of flavors, however, is
anti-screened.


title: Inflation model building in moduli space

abstract:
  A self-consistent modular cosmology scenario and its testability in view of
future CMB experiments are discussed. Particular attention is drawn to the
enhanced symmetric points in moduli space which play crucial roles in our
scenario. The running and moreover the running of running for the cosmic
perturbation spectrum are also analyzed.


title: General Property of Neutrino Mass Matrix and CP Violation

abstract:
  It is found that the atmospheric neutrino mixing angle of \theta_{atm} is
determined to be \tan\theta_{atm}=Im(B)/Im(C) for B=M_{\nu_e\nu_\mu} and
C=M_{\nu_e\nu_\tau}, where M_{ij} is the ij element of M^\dagger_\nu M_\nu with
M_\nu as a complex symmetric neutrino mass matrix in the (\nu_e, \nu_\mu,
\nu_\tau)-basis. Another mixing angle, \theta_{13}, defined as U_{e3} =
\sin\theta_{13}e^{-i\delta} is subject to the condition: \tan 2\theta_{13}
\propto |\sin\theta_{atm}B+\cos\theta_{atm}C| and the CP-violating Dirac phase
of \delta is identical to the phase of
\sin\theta_{atm}B^\ast+\cos\theta_{atm}C^\ast. The smallest value of |\sin
\theta_{13}| is achieved at \tan\theta_{atm}=-Re(C)/Re(B) that yields the
maximal CP-violation and that implies C=-\kappa B^\ast for the maximal
atmospheric neutrino mixing of \tan\theta_{atm}=\kappa=\pm 1. The generic
smallness of |\sin \theta_{13}| can be ascribed to the tiny violation of the
electron number conservation.


title: Color Gauge Invariance in Hard Processes

abstract:
  Within the theoretical framework we apply, a suggested origin for single spin
asymmetries is the presence of gauge links in transverse momentum dependent
distribution functions. Recently we found new gauge link structures in a number
of hard processes. These structures need to be considered in the evolution of
parton distribution functions and for establishing factorization.


title: Nucleon spin structure and its connections to various sum rules

abstract:
  Our knowledge on the nucleon spin structure has greatly improved over the
last twenty years or so, but still many fundamental questions remain unsolved.
I will try to review some of the puzzling aspects of the origin of the nucleon
spin. I will emphasize the connection with several sum rules and, when using
this tool, the relevance of some kinematic regions for testing them in the QCD
dynamics framework.


title:
Probing Topcolor-Assisted Technicolor from Like-sign Top Pair Production
  at LHC

abstract:
  The topcolor-assisted technicolor (TC2) theory predicts tree-level
flavor-changing neutral-current (FCNC) top quark Yukawa couplings with
top-pions. Such FCNC interactions will induce like-sign top quark pair
productions at CERN Large Hadron Collider (LHC). While these rare productions
are far below the observable level in the Standard Model and other popular new
physics models such as the Minimal Supersymmetric Model, we find that in a
sound part of parameter space the TC2 model can enhance the production cross
sections to several tens of fb and thus may be observable at the LHC due to
rather low backgrounds. Searching for these productions at the LHC will serve
as an excellent probe for the TC2 model.


title:
Constraints on a mixed inflaton and curvaton scenario for the generation
  of the curvature perturbation

abstract:
  We consider a supersymmetric grand unified model which naturally solves the
strong CP and mu problems via a Peccei-Quinn symmetry and leads to the standard
realization of hybrid inflation. We show that the Peccei-Quinn field of this
model can act as curvaton. In contrast to the standard curvaton hypothesis,
both the inflaton and the curvaton contribute to the total curvature
perturbation. The model predicts an isocurvature perturbation too which has
mixed correlation with the adiabatic one. The cold dark matter of the universe
is mostly constituted by axions plus a small amount of lightest sparticles. The
predictions of the model are confronted with the Wilkinson microwave anisotropy
probe and other cosmic microwave background radiation data. We analyze two
representative choices of parameters and derive bounds on the curvaton
contribution to the adiabatic perturbation. We find that, for the choice which
provides the best fitting of the data, the curvaton contribution to the
adiabatic amplitude must be smaller than about 67% (at 95% confidence level).
The best-fit power spectra are dominated by the adiabatic part of the inflaton
contribution. We use Bayesian model comparison to show that this choice of
parameters is disfavored with respect to the pure inflaton scale-invariant case
with odds of 50 to 1. For the second choice of parameters, the adiabatic mode
is dominated by the curvaton, but this choice is strongly disfavored relative
to the pure inflaton scale-invariant case (with odds of 10^7 to 1). We conclude
that in the present framework the perturbations must be dominated by the
adiabatic component from the inflaton.


title: Solar Neutrino Oscillation - An Overview

abstract:
  After a brief summary of the neutrino oscillation formalism and the solar
neutrino sources and experiments I discuss the matter effect on solar neutrino
oscillation. Then I discuss how the resulting alternative solutions are
experimentally resolved in favour of the LMA solution, with particular exphasis
on the SK, SNO and KL data.


title: Production of Large Transverse Momentum W Bosons at the Tevatron

abstract:
  We discuss the production of W bosons at large transverse momentum in p pbar
collisions at the Tevatron Run I and II. W boson hadroproduction is a process
of relevance in testing the Standard Model and in estimates of backgrounds to
new physics. The next-to-leading order cross section in the region of large
transverse momentum is dominated by threshold soft-gluon corrections which
arise from incomplete cancellations near partonic threshold between graphs with
real emission and virtual graphs due to the limited phase space available for
real gluon emission. In this contribution it is shown how, by including
next-to-next-to-leading-order (NNLO) soft-gluon corrections, the transverse
momentum distribution of the W at the Tevatron is modestly enhanced and the
dependence on the factorization and renormalization scales is significantly
reduced.


title:
CP Asymmetry in $\bar B^0\to K^- \pi^+$ from SUSY Flavor Changing
  Interactions

abstract:
  Recently Babar and Belle collaborations have measured direct CP asymmetry
$A_{CP}=-0.114\pm 0.020$ in $\bar B^0 \to K^- \pi^+$. The experimental value is
substantially different from QCD factorization prediction. We show that SUSY
flavor changing neutral current interaction via gluonic dipole can explain the
difference. CP asymmetries in other $B\to K\pi$ decays are predicted to be
sizeable. Taking this asymmetry as a constraint, we find that the allowed SUSY
parameter space is considerably reduced compared with constraint from $B\to X_s
\gamma$ alone. We also find that the allowed time dependent CP asymmetries
$S_f$ in $\bar B^0 \to \bar K^{* 0}\gamma \to \pi^0 K_S \gamma$ and $\bar
B^0\to \phi K_S$ to be large. These predictions are quite different than those
predicted in the Standard Model and can be tested in the near future.


title: Parametrizations of the Seesaw, or, can the Seesaw be tested?

abstract:
  This proceedings contains a review, followed by a more speculative
discussion. I review different coordinate choices on the 21-dimensional
parameter space of the seesaw, and which of these 21 quantities are observable.
In MSUGRA, there is a 1-1 correspondance between the parameters, and the
interactions of light (s)particles. However, not all of the 21 can be extracted
from data, so the answer to the title question is ``no''. How to parametrise
the remaining unknowns is confusing--different choices seem to give
contradictory results (for instance, to the question ``does the Baryon
Asymmetry depend on the CHOOZ angle?''). I speculate on possible resolutions of
the puzzle.


title: Massive Gauge Bosons in Yang-Mills Theory without Higgs Mechanism

abstract:
  A new mechanism giving the massive gauge bosons in Yang-Mills theory is
proposed in this letter. The masses of intermediate vector bosons can be
automatically given without introducing Higgs scalar boson. Furthermore the
relation between the masses of bosons and the fermion mass matrix is obtained.
It is discussed that the theory should be renormalizable.


title:
On the electromagnetic form factors of the proton from generalized
  Skyrme models

abstract:
  We compare the prediction of Skyrme-like effective Lagrangians with data for
electromagnetic form factors of proton and consider the possibility of fixing
the parameters of these higher-order Lagrangians. Our results indicate that one
or two-parameter models can lead to better agreement with the data but more
accurate determination of the effective Lagragian faces theoretical
uncertainties.


title:
Top flavour-changing neutral interactions: theoretical expectations and
  experimental detection

abstract:
  Top flavour-changing neutral interactions with a light quark q=u,c and a
gauge or Higgs boson are very suppressed within the Standard Model (SM), but
can reach observable levels in many of its extensions. We review the possible
size of the effective vertices Ztq, gamma tq, gtq and Htq in several SM
extensions, and discuss the processes in which these interactions might show up
at LHC and at a high energy e+ e- linear collider.


title: A model for leptogenesis at the TeV scale

abstract:
  We consider the mechanism of thermal leptogenesis at the TeV scale in the
context of an extension of the Standard Model with 4 generations and the
inclusion of four right-handed Majorana neutrinos. We obtain a value for the
baryon asymmetry of the
  Universe in accordance with observations by solving the full set of coupled
Boltzmann equations for this model.


title: Lorentz violation and neutrinos

abstract:
  Neutrino oscillations provide an opportunity for sensitive tests of Lorentz
invariance. This talk reviews some aspects of Lorentz violation in neutrinos
and the prospect of testing Lorentz invariance in neutrino-oscillation
experiments. A general Lorentz-violating theory for neutrinos is discussed, and
some signals of Lorentz violation are identified.


title: Higgs Boson Production with Bottom Quarks at Hadron Colliders

abstract:
  We present results for the production cross section of a Higgs Boson with a
pair of bottom/anti-bottom quarks, including next-to-leading order (NLO) QCD
corrections.


title: Lepton flavor violating tau and B decays and heavy neutrinos

abstract:
  We study lepton flavor violating (LFV) tau and B decays in models with heavy
neutrinos to constrain the mixing matrix parameters U_{tau N}. We find that the
best current constraints when the heavy neutrinos are purely left-handed come
from LFV radiative tau decay modes. To obtain competitive constraints in LFV B
decay it is necessary to probe b -> X_{s} tau^{\pm} e^{\mp} at the 10^{-7}
level. When the heavy neutrinos have both left and right-handed couplings, the
mixing parameters can be constrained by studying LFV B decay modes and LFV tau
decay into three charged leptons. We find that the branching ratios B(tau^{\pm}
-> l_1^{\pm} l_2^{\pm} l_3^{\mp}), B(B_{s} -> tau^{\pm} e^{\mp}) and B(b ->
X_{s} l_1^{\pm} l_2^{\mp}) need to be probed at the 10^{-8} level in order to
constrain the mixing parameters beyond what is known from unitarity.


title: Impact of CP phases on the search for top and bottom squarks

abstract:
  We study the decays of top squarks (~t_{1,2}) and bottom squarks (~b_{1,2})
in the Minimal Supersymmetric Standard Model (MSSM) with complex parameters
A_t, A_b, mu and M_1. We show that including the corresponding phases strongly
affects the branching ratios of ~t_{1,2} and ~b_{1,2} decays in a large domain
of the MSSM parameter space. This could have an important impact on the search
for ~t_{1,2} and ~b_{1,2} and the determination of the underlying MSSM
parameters at future colliders.


title: Phenomenology of Noncommutative Field Theories

abstract:
  Experimental limits on the violation of four-dimensional Lorentz invariance
imply that noncommutativity among ordinary spacetime dimensions must be small.
In this talk, I review the most stringent bounds on noncommutative field
theories and suggest a possible means of evading them: noncommutativity may be
restricted to extra, compactified spatial dimensions. Such theories have a
number of interesting features, including Abelian gauge fields whose
Kaluza-Klein excitations have self couplings. We consider six-dimensional QED
in a noncommutative bulk, and discuss the collider signatures of the model.


title: The theory of pentaquarks

abstract:
  Is there a theory or good experimental evidence?
  Bj's question: Pentaquark is created by $e^+e^-$. $2q + q \to$ Baryon $; ~ ~
~ 2q + \bar q \to $ Triquark$ ; ~ ~ ~ 2q + $Triquark $ \to $Pentaquark Does it
live long onough to be observable? Basic physics of constituent quarks and
flavor antisymmetry. Report of $\Theta^+$ violating flavor antisymmetry
indicates need for two-cluster model.. Ball in Experimental Court - Some
experiments see $\Theta^+$; others don't. Possible production mechanisms
present in some experiments, absent in others; e.g. via $N^*(2.3 \rm{GeV}) \to
\Theta^+ + \bar K$?


title: Large Extra Dimensions and the Minimal Length

abstract:
  Large extra dimensions lower the Planck scale to values soon accessible.
Motivated by String Theory, the models of large extra dimensions predict a vast
number of new effects in the energy range of the lowered Planck scale, among
them the production of TeV-mass black holes and gravitons. But not only is the
Planck scale the energy scale at which effects of modified gravity become
important. String Theory as well as non-commutative quantum mechanics suggest
that the Planck length acts as a minimal length in nature, providing a natural
ultraviolet cutoff and a limit to the possible resolution of spacetime. Within
the extra dimensional scenario, the minimal length effects thus become
important in the same energy range in which the effective extra dimensional
models predict new physics. We examine a model which includes the minimal
length into the extra dimensional extension of the Standard Model.
  To appear in the Proceedings of the conference Physics at LHC, Vienna,
Austria, July 2004.


title:
Probing new physics from top quark FCNC processes at linear colliders :
  a mini review

abstract:
  We briefly review the studies on the top quark FCNC processes at a
next-generation linear collider. Such processes, including various FCNC top
quark rare decays and top-charm associated productions, are extremely
suppressed in the standard model (SM) but could be significantly enhanced in
some extensions. We compared the predictions from different typical new physics
models: the SM, the minimal supersymmetric model (MSSM), the general
two-higgs-doublet model (2HDM) and the topcolor-assisted technicolor (TC2)
model. Our conclusion is: (1) While all the new physics models can enhance the
rates by several orders relative to the SM predictions, the TC2 model predicts
much larger rates than other models; (2) The optimal channel for probing the
top quark FCNC is the top-charm associated production in \gamma-\gamma
collision, which occurs at a much higher rate than e^+ e^- or e^- \gamma
collision and can reach the detectable level for a large part of the parameter
space.


title: Complexification of The Vacuum and The Electroweak Gauge Symmetry

abstract:
  In this paper we investigate the consequences of imposing an SO(4) symmetry
both on the scalar field and on spacetime prior to any spontaneous symmetry
breakdown in the electroweak model. First we argue that the local electroweak
gauge symmetry is implied by the initial SO(4) symmetry of the scalar field.
Then we parameterize the vacuum, in a slightly different way with respect to
the conventional assignment in the electroweak model, around the ground state
mainly in two different ways: Once over the local electroweak gauge
transformations and once over the local $\gamma$ basis which generates the
SO(4) symmetry of the scalar field. Through comparing the two, we conclude that
a consistent parametrization, requires the complexification of the scalar
field, which simultaneously requires spacetime to obey local Lorentz invariance
in the broken phase of the electroweak vacuum. After spontaneous symmetry
breakdown and complexification, the SO(3,1) invariant quantity of the scalar
field is identified to be the Higgs mass, which yields $m_H=v/2 \cong 123$ GeV.
Also the vacuum state is normalized to a unit state by rescaling the local
$\gamma$ basis, so that the metric tensor inherently contains the speed of
light in the Higgs vacuum. We shortly consider the validity of the SO(3,1)
invariance property of the vacuum state in terms of the Goldstone modes, in
case the Higgs field departs from the ground state. The main goal of the paper
is to treat spacetime and vacuum as the two faces of the same medallion, and to
relate the local spacetime symmetry with the electroweak gauge symmetry, both
in the broken and unbroken phases of the vacuum via complexification and
spontaneous symmetry breaking.


title: On the Effective Evolution for the Inflaton

abstract:
  The dynamics of the inflaton field is studied in the context of its
interaction with bosonic and fermionic fields modeled by a minimal SUSY like
model. Our results are based on the observation that in typical multifield
inflation models there are parameter regions for which nonlinear and
nonperturbative effects can become important and that can lead to important
changes in the dynamics of the inflaton field. In those parameter regions
feasible to inflation, it is possible the emergence of effective strong
dissipative effects that alone can sustain inflation long enough and with
observational effects on density perturbations.


title:
Hadron structure from gamma^* p scattering: interpreting hadronic matrix
  elements

abstract:
  Hadron structure from high-Q^2 gamma^* p scattering processes is often
expressed in terms of hadronic matrix elements of nonlocal operators. Properly
defining and interpreting these quantities is very important in light of
experiments aiming to extract transverse momentum dependent parton
distributions or generalized parton distributions. The current status will be
reviewed, including recent developments concerning Wigner distributions.


title: Radiative stabilization of warped space

abstract:
  Higher-dimensional field theory has been applied to explore various issues in
recent particle physics such as the gauge hierarchy problem. In order for such
approaches to be viable, a crucial ingredient is to fix the sizes of extra
dimensions at some finite values, which sizes are generically free parameters
in the theory. In this paper, we present several schemes to determine the
radius of extra dimension in warped five-dimensional theory. In every case, a
non-vanishing Fayet-Iliopoulos term for abelian gauge factor plays a crucial
role for the radius stabilization. It is radiatively generated in the presence
of charged matter fields and the compactification is therefore spontaneous, not
forced by selected operators. The low-energy supersymmetry is broken or
unbroken, and the radius can be fixed to give a small or large scale hierarchy
without any fine tuning of parameters. We also discuss a model of the radius
stabilization correlated with Yukawa hierarchy and supersymmetry breaking.


title: Inelastic Final State Interactions in $B \to PP$ Decays

abstract:
  A method parametrizing all inelastic final state interactions (FSI) in $B\to
PP$ decays is presented ($P$ - pseudoscalar meson). The method explicitly shows
how rescattering leads to the replacement of the short-distance amplitudes with
the effective quark diagram amplitudes, and how it affects the extraction of
the unitarity triangle angle $\gamma $ from the data. It is furthermore pointed
out that the size of FSI effects cannot be determined from $B^0_d \to K^+ K^-$
decays in a satisfactory way. The case of SU(3)-violating FSI is also
discussed. When fits to the branching ratios of all $B \to PP$ decays are
performed with all inelastic FSI included, the extracted value of $ \gamma $ is
shifted down by some $20^o-30^o$ when compared to the no-FSI analyses, and
becomes consistent with the Standard Model value of $ 65^o \pm 7^o$.


title: Physics potential of beta-beams

abstract:
  Beta-beams is a novel concept for the production of neutrino beams exploiting
boosted radioactive ions which decay through beta-decay. Here we describe a
project, currently under investigation, where such beams are used to address
the issue of CP violation in the lepton sector. We also mention the interest of
having low-energy beta-beams. The connection to projects for the production of
very intense exotic ion beams, like EURISOL, is emphasized.


title: Flavor structure of pentaquark baryons in quark model

abstract:
  The flavor SU(3) group structure of pentaquark baryons which form $\bm{1}$,
$\bm{8}$, $\bm{10}$, $\bar{\bm{10}}$, $\bm{27}$, and $\bm{35}$ multiplets is
investigated in quark model. The flavor wave functions of all the pentaquark
baryons are constructed in SU(3) quark model and their Yukawa interactions with
meson octet are obtained in general and in the special case of the
octet-antidecuplet ideal mixing with the OZI rule. The mass sum rules of
pentaquark baryons are also discussed.


title:
Application of the Two-Scale Model to the HERMES Data on Nuclear
  Attenuation

abstract:
  The Two-Scale Model and its improved version were used to perform the fit to
the HERMES data for $\nu$ (the virtual photon energy) and z (the fraction of
  $\nu$ carried by hadron) dependencies of nuclear multiplicity ratios for
$\pi^+$ and $\pi^-$ mesons electro-produced on two nuclear targets ($^{14}$N
and $^{84}$Kr). The quantitative criterium $\chi ^2$ was used for the first
time to analyse the results of the model fit to the nuclear multiplicity ratios
data. The two-parameter's fit gives satisfactory agreement with the HERMES
data. Best values of the parameters were then used to calculate the $\nu$- and
$z$ - dependencies of nuclear attenuation for $\pi^0$, K$^+$, K$^-$ and
$\bar{p}$ produced on $^{84}$Kr target, and also make a predictions for $\nu$,
z and the Q$^2$ (the photon virtuality) - dependencies of nuclear attenuation
data for those identified hadrons and nuclea, that will be published by HERMES.


title: Summary of ICHEP 2004

abstract:
  Aspects of ICHEP 2004 are summarized from a theoretical point of view. QCD
works, new NNLO calculations are becoming available and new string
calculational tools are emerging, but no conclusions can yet be drawn about the
discovery of the quark-gluon plasma or pentaquarks. The small upward shift in
the experimental value of m_t raises somewhat the central value of the Higgs
mass extracted from a global electroweak fit, and the CKM model describes well
the data from the B factories. The Super-Kamiokande, KamLAND and K2K
experiments have evidence for oscillation dips in their neutrino data. Little
Higgs models are interesting alternatives to low-energy supersymmetry for
stabilizing the electroweak scale. Convincing experimental evidence for dark
matter particles is still lacking. The LHC is on its way, the technology choice
clarifies the roadmap for the ILC, and a multi-TeV CLIC would also have rich
physics agenda.


title: The coupled-channel analysis of the D and D_s mesons

abstract:
  The shift of the p-wave $D_s$ meson mass due to coupling to the DK channel is
calculated without fitting parameters using the chiral Lagrangian. As a result
the original $Q\bar q$ mass 2.490 MeV generically calculated in the
relativistic quark models is shifted down to the experimental value 2317 MeV.
With the same Lagrangian the shift of the radial excited $1^-$ level is much
smaller, while the total width $\Gamma > 100$ MeV and the width ratio is in
contradiction with the $D^*(2632)$ state observed by SELEX group.


title: Baryons as Fock states of 3,5,... quarks

abstract:
  We present a generating functional producing quark wave functions of all Fock
states in the octet, decuplet and antidecuplet baryons in the mean field
approximation, both in the rest and infinite momentum frames. In particular,
for the usual octet and decuplet baryons we get the SU(6)-symmetric wave
functions for their 3-quark component but with specific corrections from
relativism and from additional quark-antiquark pairs. For the exotic
antidecuplet baryons we obtain the 5-quark wave function.


title:
Quadratic Divergences in Effective Supergravity from the Heterotic
  Superstring

abstract:
  Results from studies of effective Lagrangians for gaugino condensation are
summarized and re-examined with an eye to previously neglected one-loop
quadratically divergent corrections.


title: Theoretical Development on Pentaquarks

abstract:
  I first give a brief overview of the status of exotic hadron search so far.
Then I review the recent theoretical development on pentaquarks. Finally I
emphasize that none of theoretical formalisms predicts the existence of
$\Theta$ pentaquark very reliably. None of them explains its narrow width in a
natural way.


title: Neutrinos as a Diagnostic of High Energy Astrophysical Processes

abstract:
  A leading candidate for the extragalactic source of high energy cosmic rays
is the Fermi engine mechanism, in which protons confined by magnetic fields are
accelerated to very high energy through repeated scattering by plasma shock
fronts. In the process of acceleration, collisions of trapped protons with the
ambient plasma produce pions which decay to electromagnetic energy and
neutrinos. For optically thin sources, a strong connection between the emerging
cosmic rays and secondary neutrinos can be established. In this context, we
show the feasibility of using the Glashow resonance as a discriminator between
the $pp$ and $p\gamma$ interactions in Fermi engines as sources of neutrinos.
In particular, we demonstrate how three years of observation at the km$^3$
IceCube facility can serve as a filter for the dominance of the $pp$
interaction at the source.


title: A Lorentz covariant representation of bound state wave functions

abstract:
  We present a method enabling us to write in relativistic manner the wave
function of some particular two particle bound state models in quantum
mechanics. The idea is to expand the bound state wave function in terms of free
states and to introduce the potential energy of the bound system by mens of the
4-momentum of an additional constituent, supposed to represent in a global way
some hidden degrees of freedom. The procedure is applied to the solutions of
the Dirac equation with confining potentials which are used to describe the
quark antiquark bound states representing a given meson state.


title: Weak phases from the $B\to \pi\pi$, $K\pi$ decays

abstract:
  Recent data of two-body nonleptonic $B$ meson decays allow a
topological-amplitude analysis up to the $O(\lambda^2)$ accuracy, where
$\lambda$ denotes the Wolfenstein parameter. We find a solution from the
$B\to\pi\pi$ data and a solution from the $B\to K\pi$ data, which satisfy the
approximate SU(3) flavor symmetry. These solutions indicate that the
color-suppressed tree amplitude is large, all other amplitudes can be
understood within the standard model, and the weak phases $\phi_2\approx 90^o$
and $\phi_3\approx 60^o$ are consistent with the global unitarity triangle fit.


title: The Dynamical Mixing of Light and Pseudoscalar Fields

abstract:
  We solve the general problem of mixing of electromagnetic and scalar or
pseudoscalar fields coupled by axion-type interactions ${\cal L}_{int}
=g_{\phi} \phi \epsilon_{\mu \nu \a \b}F^{\mu \nu}F^{\a \b} $. The problem
depends on several dimensionful scales, including the magnitude and direction
of background magnetic field, the pseudoscalar mass, plasma frequency,
propagation frequency, wave number, and finally the pseudoscalar coupling. We
apply the results to the first consistent calculations of the mixing of light
propagating in a background magnetic field of varying direction, which shows a
great variety of fascinating resonant and polarization effects.


title: MSUGRA Dark Matter and the b Quark Mass

abstract:
  We extend the commonly used mSUGRA framework to allow complex soft terms. We
show how these phases can induce large changes of the SUSY threshold
corrections to the b quark mass and affect the neutralino relic density
predictions of the model. We present some specific models with large SUSY
phases which can accommodate the fermion electric dipole moment constraints and
a neutralino relic density within the WMAP bounds.


title: The meson spectra beyond a $q\bar q$ description

abstract:
  Despite the apparent simplicity of meson spectroscopy there are some states
which cannot be accommodated in the usual $q\bar q$ structure. Among them there
are either exotic states as the X(1600), or the recently measured charmed
states $D_{sJ}^*$ and some of the light scalar mesons. We present a description
of the light scalar mesons in terms of $q\bar q$ and $qq\bar q\bar q$
components.


title: Radiative Corrections to Neutrino Reactions off Proton and Deuteron

abstract:
  Radiative corrections are calculated for antineutrino proton quasielastic
scattering, neutrino deuteron scattering, and the asymmetry of polarised
neutron beta decay from which $G_{A}/G_{V}$ is determined. A particular
emphasis is given to the constant parts that are usually absorbed into the
coupling constants, and thereby those that appear in the processes that concern
us are unambiguously tied among each other.


title:
Production of two electron-positron couples in electroweak gamma gamma -
  interaction

abstract:
  We present the calculation of gamma gamma -> 2e+e- process cross section. The
construction are perfomed using both helicity amplitude method and method of
precision covariant calculation. The magnitude of cross section is obtained by
the Monte-Carlo method of numerical integration. Different energies,
polarization states and kinematics cuts are considered.


title:
Bd^0(t)->pi^+pi^- and Bs^0(t)-> K^+ K^- Decays: A Tool to Measure
  New-Physics Parameters

abstract:
  If physics beyond the standard model is present in B decays, experimental
measurements seem to suggest that it principally affects those processes with
significant b->s penguin amplitudes. It was recently argued that, in general,
such new-physics (NP) effects can be parametrized in terms of a single NP
amplitude A^q and phase \Phi_q, for q=u,d,s,c. In this paper, we show that the
study of the decays Bs(t) -> K^+ K^- and Bd(t) -> \pi^+\pi^- allows one to
measure the NP parameters A^u and \Phi_u. We examine the implications for this
method of the latest experimental results on these decays. If NP is found in
Bs(t) -> K^+ K^-, it can be partially identified through measurements of
Bs(t)-> K^0 \bar K^0.


title: Parton Saturation Approach in Heavy Quark Production at High Energies

abstract:
  The high parton density regime of the Quantum Chromodynamics (QCD), where the
physics of parton saturation is expected to be dominant, is briefly discussed.
Some phenomenological aspects of saturation are described, mainly focusing on
possible signatures of the non-linear QCD dynamics in the heavy quark
production in electron-proton/nucleus collisions. Implications of these effects
in the heavy quark production in ultraperipheral heavy-ion collisions are also
presented.


title: Perturbative QCD Potential and String Tension

abstract:
  The leading non-perturbative contribution to the static QCD potential at r <<
1/Lambda_QCD is known to be O(r^2) in operator-product expansion. It indicates
that a "Coulomb+linear" potential at r <~ 1/Lambda_QCD is included in the
perturbative QCD prediction of the potential. It was shown that this is indeed
the case, and the "Coulomb+linear" potential has been systematically computed
up to next-to-next-to-leading logarithmic order, in terms of the Lambda
parameter in the MSbar scheme (Lambda_MSbar). We review the present status of
the perturbative prediction for the QCD potential, which takes into account the
theoretical breakthrough that took place around 1998.


title: Resummations, Power Corrections and Interjet Radiation

abstract:
  Resummation in QCD provides insight into the evolution of final state jets
from short to long distances, and of accompanying interjet radiation.
Applications to event shapes, including the recently-proposed angularities,
suggest experimental tests of the interrelations between weak- and
strong-coupling dynamics.


title:
A Measurement of gamma from the Decays Bd(t) -> D(*)+ D(*)- and Bd ->
  Ds(*)+ D(*)-

abstract:
  Recently, it was proposed to use measurements of Bd(t) -> D(*)+ D(*)- and Bd
-> Ds(*)+ D(*)- decays to measure the CP phase gamma. In this paper, we present
the extraction of gamma using this method. We find that gamma is favored to lie
in one of the ranges [19.4o - 80.6o] (+ 0o or 180o), [120o - 147o] (+ 0o or
180o), or [160o - 174o] (+ 0o or 180o) at 68% confidence level (the (+ 0o or
180o) represents an additional ambiguity for each range). These constraints
come principally from the vector-vector final states; the vector-pseudoscalar
decays improve the results only slightly. Although, with present data, the
constraints disappear for larger confidence levels, this study does demonstrate
the feasibility of the method. Strong constraints on gamma can be obtained with
more data.


title: The large $N$ limit from the lattice

abstract:
  A numerical study of the string tension and of the masses of the lowest-lying
glueballs is performed in SU($N$) gauge theories for $2 \le N \le 8$ in D=3+1
and $2 \le N \le 6$ in D=2+1. It is shown that for the string tension a smooth
$N \to \infty$ limit exists that depends only on the 't Hooft coupling $\lambda
= g^2 N$. An extrapolation of the masses of the lightest glueballs to $N =
\infty$ using a power series in $1/N^2$ shows that the leading correction to
the infinite $N$ value accounts for finite $N$ effects for $N$ at least as
small as 3 and all the way down to N=2 in many cases. $k$-string tension ratios
and possible issues connected with correlation functions at large $N$ are also
discussed.


title:
Helicity Dependent and Independent Generalized Parton Distributions of
  the Nucleon in Lattice QCD

abstract:
  A complete description of the nucleon structure in terms of generalized
parton distributions (GPDs) at twist 2 level requires the
measurement/computation of the eight functions H, E, \tilde H, \tilde E, H_T,
E_T, \tilde H_T and \tilde E_T, all depending on the three variables x, \xi and
t. In this talk, we present and discuss our first steps in the framework of
lattice QCD towards this enormous task. Dynamical lattice QCD results for the
lowest three Mellin moments of the helicity dependent and independent GPDs are
shown in terms of their corresponding generalized form factors. Implications
for the transverse coordinate space structure of the nucleon as well as the
orbital angular momentum (OAM) contribution of quarks to the nucleon spin are
discussed in some detail.


title:
Universal behavior of QCD amplitudes at high energy from general tools
  of statistical physics

abstract:
  We show that high energy scattering is a statistical process essentially
similar to reaction-diffusion in a system made of a finite number of particles.
The Balitsky-JIMWLK equations correspond to the time evolution law for the
particle density. The squared strong coupling constant plays the role of the
minimum particle density. Discreteness is related to the finite number of
partons one may observe in a given event and has a sizeable effect on physical
observables. Using general tools developed recently in statistical physics, we
derive the universal terms in the rapidity dependence of the saturation scale
and the scaling form of the amplitude, which come as the leading terms in a
large rapidity and small coupling expansion.


title:
Manifestation of the Color Glass Condensate in particle production at
  RHIC

abstract:
  We discuss general properties of the Color Glass Condensate. We show that
predictions for particle production in p(d)A and AA collisions derived from
these properties are in agreement with data collected at RHIC.


title: Inelastic J/psi and Upsilon hadroproduction

abstract:
  We consider the prompt hadroproduction of J/psi, psi' and the Upsilon
(1S,2S,3S) states caused by the fusion of a symmetric colour-octet two-gluon
state and an additional gluon. The cross sections are calculated in
leading-order perturbative QCD. We find a considerable enhancement in
comparison with previous perturbative QCD predictions. Indeed, the resulting
cross sections are found to be consistent with the values measured at the
Tevatron and RHIC, without the need to invoke non-perturbative `colour-octet'
type of contributions.


title:
Electroproduction Cross Section of Large_Et Hadrons at NLO and Virtual
  Photon Structure Function

abstract:
  We calculate Higher Order corrections to the resolved component of the
electroproduction cross section of large-Et hadrons. The parton distributions
in the virtual photon are studied in detail and a NLO parametrization of the
latter is proposed. The contribution of the resolved component to the forward
production of large-Et hadrons is calculated and its connection with the BFKL
cross section is discussed.


title: Morphology and characteristics of radio pulsars

abstract:
  This review describes the observational properties of radio pulsars, fast
rotating neutron stars, emitting radio waves. After the introduction we give a
list of milestones in pulsar research. The following chapters concentrate on
pulsar morphology: the characteristic pulsar parameters such as pulse shape,
pulsar spectrum, polarization and time dependence. We give information on the
evolution of pulsars with frequency since this has a direct connection with the
emission heights, as postulated in the radius to frequency mapping (RFM)
concept. We deal successively with the properties of normal (slow) pulsars and
of millisecond (fast-recycled) pulsars. The final chapters give the
distribution characteristics of the presently catalogued 1300 objects.


title: Grand Unification and Physics Beyond the Standard Model

abstract:
  Recent progress in some selected areas of grand unification and physics
beyond the standard model is reviewed. Topics include gauge coupling
unification, SU(5), SO(10), symmetry breaking mechanisms, finite field theory:
SU(3)^3, leptonic color: SU(3)^4, chiral color and quark-lepton
nonuniversality: SU(3)^6.


title: Neutrino masses and mixing from hierarchy and symmetry

abstract:
  We construct a model that allows us to determine the three neutrino masses
and the mass matrix directly from the experimental mass squared differences
delta atm and delta sol, using the assumptions of rational hierarchy (m1/m2 =
m2/m3) and of S3-S2 symmetry for the mixing matrix. We find that both the mass
ratios and mixing angles are dominated by the same parameter. For the mixing
angles, this parameter=sq rt (1/6)=0.41, is a Clebsch-Gordan coefficient. For
the masses, the mass ratios depend on the experimental mass squared differences
and with most recent data, remarkably, we obtain sq rt (m1/m2)=sq rt
(m2/m3)=0.41. This possibly coincidental equality gives a simple mass matrix.
We obtain the masses m1,m2 and m3. We also obtain the mass matrix M and
evaluate its elements numerically for the presently 'best fit' solution.


title: New bulk scalar field solutions in brane worlds

abstract:
  We use nonlinear perturbation theory to obtain new solutions for brane world
models that incorporate a massive bulk scalar field. We then consider tensor
perturbations and show that Newtonian gravity is recovered on the brane for
both a light scalar field and for a bulk field with large negative mass. This
latter result points to the viability of higher-derivative theories of gravity
in the context of bulk extra dimensions.


title: A supersymmetric origin of gamma ray bursts

abstract:
  Bright bursts of gamma rays from outer space have been puzzling Astronomers
for more than thirty years and there is still no conceptually complete model
for the phenomenon within the standard model of particle physics. Is it time to
consider a supersymmetric (SUSY) origin for these bursts to add to the
astronomical indications of supersymmetry from dark matter?


title:
d-Au and p-p collisions at RHIC and the multichain Monte Carlo
  Dpmjet-III

abstract:
  In this paper we compare systematically the two-component Dual Parton Model
(DPM) event generator Dpmjet-III to d-Au and p-p data from RHIC. In this
process we are able to improve the model. The need for fusion of chains and a
recalibration of the model to obtain collision scaling in h-A and d-A
collisions was found already in previous comparisons. Here, comparing to
transverse momentum distributions of identified charged hadrons we find also
the need to modify the transverse momentum distributions in the decay of
hadronic strings, the basic building blocks of the model on soft hadronic
collisions.


title: Universal phase between strong and eletromagnetic interactions

abstract:
  It is shown that the experimental data of psi(3686) and psi(3770) are
consistent with a -90 degree phase between the strong and eletromagnetic decay
amplitudes. The e+ e- -> rho-pi measured at psi(3770) is also consistent with
the branching ratio predicted by Rosner's scenario on rho-pi puzzle in
charmonium physics. This scenario leads to a possible large charmless branching
ratio in psi(3770) decays.


title: Soft Nonfactorizable Contribution to \bar{B}^0 \to D^0\pi^0

abstract:
  For the color-suppressed $\bar{B}^0\longrightarrow D^{0}\pi^{0}$ decay,
nonfactorizable contributions are expected to be leading and naive
factorization description breaks down. We estimate $1/m_b$ power-suppressed
nonfactorizable effect in $\bar{B}^0\longrightarrow D^{0}\pi^{0}$, which is due
to soft exchange between the emitted heavy-light quark pair and $B\pi$ system,
in the framework of QCD light-cone sum rules (LCSR). The resulting correction
to the decay amplitude is found to be numerically comparable with the
corresponding factorizable piece, estimated at about $(50-110)%$ of the latter.
The relevant parameter $a_2$ receives a positive number contribution, due to
the factorizable correction and the power-suppressed soft effect. Our findings
would be crucial to phenomenological understanding of the
$\bar{B}^0\longrightarrow D^{0}\pi^{0}$ decay.


title: Global Analysis of Neutrino Data

abstract:
  In this talk I review the present status of neutrino masses and mixing and
some of their implications for particle physics phenomenology. I first discuss
the minimum extension of the Standard Model of particle physics required to
accommodate neutrino masses and introduce the new parameters present in the
model and in particular the possibility of leptonic mixing. I then describe the
phenomenology of neutrino masses and mixing leading to flavour oscillations and
present the existing evidence from solar, reactor, atmospheric and
long-baseline neutrinos as well as the results from laboratory searches at
short distances. I derive the allowed ranges for the mass and mixing parameters
when the bulk of data is consistently analyzed in the framework of mixing
between the three active neutrinos and obtain as a result the most up-to-date
determination of the leptonic mixing matrix. Then I briefly summarize the
status of some proposed phenomenological explanations to accommodate the LSND
results: the role of sterile neutrinos and the violation of CPT. Finally I
comment how within the present experimental precision it is possible to use the
observation of oscillation patterns to impose severe constraints on the
possible violation of fundamental symmetries in particle physics such as
Lorentz invariance or the weak equivalence principle.


title: The pion electromagnetic form-factor in a QCD-inspired model

abstract:
  We present detailed numerical results for the pion space-like electromagnetic
form factor obtained within a recently proposed model of the pion
electromagnetic current in a confining light-front QCD-inspired model. The
model incorporates the vector meson dominance mechanism at the quark level,
where the dressed photon with $q^+>0$ decay in an interacting quark-antiquark
pair,wich absorbs the initial pion and produces the pion in the final state.


title: Proton-nucleus collisions in the color glass condensate framework

abstract:
  We discuss proton-nucleus collisions in the framework of the color glass
condensate. By assuming that the proton can be described as a low density color
source, we solve exactly the Yang-Mills equations corresponding to this type of
collision, and then use this solution in order to calculate inclusive gluon
production or quark-antiquark production. Our result shows that
k_T-factorization, while valid for gluon production, is violated for quark pair
production in proton-nucleus collisions.