title: Distinguishing between the small ADD and RS black holes in accelerators

abstract:
  In models with extra dimensions that accommodate a TeV-scale gravity, small
black holes could be produced in near future accelerator experiments. Such
small black holes, whose gravitational radius is mush smaller than the
characteristic size of extra dimensions (compactification radius in flat or AdS
radius in warped extra dimensions) can be very well described by asymptotically
flat solutions, thus losing the information about the global geometry of the
extra manifold. One might conclude that such small black holes would be
indistinguishable in different scenarios. We argue that important differences
still exist, especially regarding experimental signature in colliders, which
may help us distinguish between the various extra dimensional scenarios. The
main differences come from the fact that most of the models with the warped
extra dimension have an additional discrete $Z_2$ symmetry that makes the brane
behave as if it were an infinite tension brane.


title: Heavy quark expansion in beauty: recent successes and problems

abstract:
  The status of the QCD-based heavy quark expansion is briefly reviewed. A good
agreement between properly applied theory and new precision data is observed.
Critical remarks on certain recent claims from HQET are presented. Recent
applications to the exclusive heavy flavor transitions are addressed. The `1/2
> 3/2' problem for the transitions into the charm P-wave states is discussed.


title: Curing the Ills of Higgsless Models: the S Parameter and Unitarity

abstract:
  We consider various constraints on Higgsless models of electroweak symmetry
breaking based on a bulk SU(2)_L x SU(2)_R x U(1)_{B-L} gauge group in warped
space. First we show that the S parameter which is positive if fermions are
localized on the Planck brane can be lowered (or made vanishing) by changing
the localization of the light fermions. If the wave function of the light
fermions is almost flat their coupling to the gauge boson KK modes will be
close to vanishing, and therefore contributions to the S parameter will be
suppressed. At the same time the experimental bounds on such Z' and W' gauge
bosons become very weak, and their masses can be lowered to make sure that
perturbative unitarity is not violated in this theory before reaching energies
of several TeV. The biggest difficulty of these models is to incorporate a
heavy top quark mass without violating any of the experimental bounds on bottom
quark gauge couplings. In the simplest models of fermion masses a sufficiently
heavy top quark also implies an unacceptably large correction to the Zb\bar{b}
vertex and a large splitting between the KK modes of the top and bottom quarks,
yielding large loop corrections to the T-parameter. We present possible
directions for model building where perhaps these constraints could be obeyed
as well.


title: D-Terms, Unification, and the Higgs Mass

abstract:
  We study gauge extensions of the MSSM that contain non-decoupling D-terms,
which contribute to the Higgs boson mass. These models naturally maintain gauge
coupling unification and raise the Higgs mass without fine-tuning. Unification
constrains the structure of the gauge extensions, limiting the Higgs mass in
these models to roughly less than 150 GeV. The D-terms contribute to the Higgs
mass only if the extended gauge symmetry is broken at energies of a few TeV,
leading to new heavy gauge bosons in this mass range.


title: Pentaquark Masses and Magnetic Moments in a Quark Cluster Approach

abstract:
  We study the stability of the different quark substructures in a quark
cluster approach to pentaquark states considering the color-magnetic spin-spin
interactions between quarks. The most likely configuration is found to be a
triquark-diquark one where the two quarks of the diquark are coupled to spin
zero and anti-triplet representations of flavor and color, and the triquark has
spin one-half and belongs to the triplet representation of color and to
anti-sextet of flavor. To ensure total antisymmetry under the interchange of
identical particles, triquark and diquark are in relative p-wave. Using this
configuration we estimate the masses and magnetic moments of pentaquarks.
Finally the calculation of the masses has been extended to some charmed
pentaquarks.


title: Sleptons: Masses, Mixings, Couplings

abstract:
  This presentation summarizes recent work of different groups on the analysis
of slepton parameters at a TeV linear collider. In particular, measurements of
the masses, mixings and Yukawa couplings for the neutral and charged sleptons
of the first/second generation and for the charged slepton sector of the third
generation are reviewed. For all relevant processes, threshold corrections and
higher order corrections in the continuum are available, thus allowing
high-precision analyses of the parameters in the slepton sector.


title: Mixing and CP-violation in charm

abstract:
  The motivation most often cited in searches for D0-anti-D0 mixing and
CP-violation in charm system lies with the possibility of observing a signal
from new physics which dominates that from the Standard Model. We review recent
theoretical predictions and experimental constraints on D0-anti-D0 mixing
parameters. We also discuss the current status of searches for CP-violation in
charmed meson transitions, as well as some recent theoretical ideas.


title: Scales of Fermion Mass Generation and Electroweak Symmetry Breaking

abstract:
  The scale of mass generation for fermions (including neutrinos) and the scale
for electroweak symmetry breaking (EWSB) can be bounded from above by the
unitarity of scattering involving longitudinal weak gauge bosons or their
corresponding would-be Goldstone bosons. Including the exact n-body phase space
we analyze the 2 --> n ($n \geq 2$) processes for the fermion-(anti)fermion
scattering into multiple gauge boson final states. Contrary to naive energy
power counting, we demonstrate that as $n$ becomes large, the competition
between an increasing energy factor and a phase-space suppression leads to a
{\it strong new upper bound} on the scale of fermion mass generation at a
finite value $n=n_s$, which is {\it independent of the EWSB scale,} $v =
(\sqrt{2}G_F)^{-1/2}$. For quarks, leptons and Majorana neutrinos, the
strongest 2 --> n limits range from about 3TeV to 130-170TeV (with $2\lesssim
n_s \lesssim 24$), depending on the measured fermion masses. Strikingly, given
the tiny neutrino masses as constrained by the neutrino oscillations,
neutrinoless double-beta decays and astrophysical observations, the unitarity
violation of $\nu_L\nu_L\to nW_L^a$ scattering actually occurs at a scale no
higher than ~170 TeV. Implications for various mechanisms of neutrino mass
generation are analyzed. On the other hand, for the 2 --> n pure
Goldstone-boson scattering, we find that the decreasing phase space factor
always dominates over the growing overall energy factor when $n$ becomes large,
so that the best unitarity bound on the scale of EWSB remains at n=2.


title: Diffractive processes at high energies

abstract:
  In this work we calculate pomeron flux in the single diffraction processes.
We consider two models: quasi-eikonal model and low constituent model. Both
models give the pictures different from the traditional three-reggeon model.
Successive developing of modeles gives some indications, that the low
constituent model is more attractive.


title: Implications of the first observation of $B\to K_1\gamma$

abstract:
  Implications of the recent new measurements of $B\to K_1\gamma$ by Belle are
examined. It is shown that the new branching ratio $\calB(B\to
K_1(1270)\gamma)$ requires very large form factor compared to the theoretically
predicted one. This is an opposite case to $B\to K^*\gamma$ where theory
expected larger branching ratio. Possible origins of the discrepancy are
discussed.


title: Oblique Corrections in Deconstructed Higgsless Models

abstract:
  In this talk, using deconstruction, we analyze the form of the corrections to
the electroweak interactions in a large class of ``Higgsless'' models of
electroweak symmetry breaking, allowing for arbitrary 5-D geometry,
position-dependent gauge coupling, and brane kinetic energy terms. Many models
considered in the literature, including those most likely to be
phenomenologically viable, are in this class. By analyzing the asymptotic
behavior of the correlation function of gauge currents at high momentum, we
extract the exact form of the relevant correlation functions at tree-level and
compute the corrections to precision electroweak observables in terms of the
spectrum of heavy vector bosons. We determine when nonoblique corrections due
to the interactions of fermions with the heavy vector bosons become important,
and specify the form such interactions can take. In particular we find that in
this class of models, so long as the theory remains unitary, S - 4 c^2_W T >
O(1), where S and T are the usual oblique parameters.


title:
Flavor Symmetry L_e - L_mu - L_tau, Atmospheric Neutrino Mixing and CP
  Violation in the Lepton Sector

abstract:
  The PMNS neutrino mixing matrix is given, in general, by the product of two
unitary matrices associated with the diagonalization of the charged lepton and
neutrino mass matrices, respectively. Assuming that the active flavor neutrinos
possess a Majorana mass matrix which is diagonalized by a bimaximal mixing
matrix, we give the allowed forms of the charged lepton mixing matrix and the
corresponding implied forms of the charged lepton mass matrix. We further
assume that the origin of bimaximal mixing is a weakly broken flavor symmetry
of the neutrino Majorana mass matrix, corresponding to the conservation of the
non-standard lepton charge L' = L_e - L_mu - L_tau. The latter does not
predict, in general, the atmospheric neutrino mixing to be maximal. We study
the impact of this fact on the allowed forms of the charged lepton mixing
matrix and on the neutrino mixing observables, analyzing the case of CP
nonconservation in detail. We find, in particular, that the allowed ranges of
U_{e3} and of the atmospheric neutrino mixing angle are typically larger when
one assumes L' conservation than in the case of exact initial bimaximal mixing.
The atmospheric neutrino mixing can take any value inside its currently allowed
range, while |U_{e3}|^2 can be as small as 0.007. We discuss under which
conditions the atmospheric neutrino mixing angle can be larger or smaller than
pi/4. We present also a simple see-saw realization of the implied light
neutrino Majorana mass matrix and consider leptogenesis in this scenario.


title: Polyakov Loop Models, Z(N) Symmetry, and Sine-Law Scaling

abstract:
  We construct an effective action for Polyakov loops using the eigenvalues of
the Polyakov loops as the fundamental variables. We assume $% Z(N)$ symmetry in
the confined phase, a finite difference in energy densities between the
confined and deconfined phases as $T\to 0$, and a smooth connection to
perturbation theory for large $T$. The low-temperature phase consists of $N-1$
independent fields fluctuating around an explicitly Z(N) symmetric background.
In the low-temperature phase, the effective action yields non-zero string
tensions for all representations with non-trivial $N$-ality. Mixing occurs
naturally between representations of the same $N$-ality. Sine-law scaling
emerges as a special case, associated with nearest-neighbor interactions
between Polyakov loop eigenvalues.


title: General Lower Bounds for b -> d Penguin Processes

abstract:
  For the exploration of flavour physics, b -> d penguin processes are an
important aspect, with the prominent example of \bar B^0_d -> K^0 \bar K^0. We
recently derived lower bounds for the CP-averaged branching ratio of this
channel in the Standard Model; they were found to be very close to the
corresponding experimental upper limits, thereby suggesting that \bar B^0_d ->
K^0 \bar K^0 should soon be observed. In fact, the BaBar collaboration
subsequently announced the first signals of this transition. Here we point out
that it is also possible to derive lower bounds for \bar B -> \rho \gamma
decays, which are again surprisingly close to the current experimental upper
limits. We show that these bounds are realizations of a general bound that
holds within the Standard Model for b -> d penguin processes, allowing further
applications to decays of the kind B^\pm -> K^{(\ast)\pm} K^{(\ast)} and B^\pm
-> \pi^\pm \ell^+ \ell^-, \rho^\pm \ell^+ \ell^-.


title: Completing Natural Inflation

abstract:
  If the inflaton is a pseudo-scalar axion, the axion shift symmetry can
protect the flatness of its potential from too large radiative corrections.
This possibility, known as natural inflation, requires an axion scale which is
greater than the (reduced) Planck scale. It is unclear whether such a high
value is compatible with an effective field theoretical description, and if the
global axionic symmetry survives quantum gravity effects. We propose a
mechanism which provides an effective large axion scale, although the original
one is sub-Planckian. The mechanism is based on the presence of two axions,
with a potential provided by two anomalous gauge groups. The effective large
axion scale is due to an almost exact symmetry between the couplings of the
axions to the anomalous groups. We also comment on a possible implementation in
heterotic string theory.


title: Generalised Parton Distributions of the Pion on the Transverse Lattice

abstract:
  The quark generalised parton distributions of the pion are calculated from
lightcone wavefunctions in transverse lattice gauge theory at large N_c. The
pion effective size is found to decrease with increasing momentum transfer. An
analytic ansatz, consistent with finite boundstate lightcone energy conditions,
is given for the lightcone momentum dependence of the wavefunctions. This leads
to simple, universal predictions for the behaviour of the distributions near
the endpoints, complementing numerical DLCQ data.


title: Theoretical Introduction to Physics with Linear Colliders

abstract:
  The major open questions in particle physics are summarized, as are the
abilities of linear colliders of different energies to add to the knowledge
obtainable from the LHC in various scenarios for physics beyond the Standard
Model. A TeV linear collider would provide much additional insight into
electroweak symmetry breaking, in particular, and a multi-TeV linear collider
would add even more value in all the scenarios studied, for example in models
with supersymmetry or extra dimensions.


title: Mixing of pseudoscalar mesons and isospin symmetry breaking

abstract:
  Mixing of the pseudoscalar mesons is discussed in the quark-flavor basis with
the hypothesis that the basis decay constants follow the pattern of particle
state mixing. The divergences of the axial vector currents which embody the
axial vector anomaly, combined with this hypothesis provide a calculational
scheme for the parameters describing the mixing of the pion, eta and eta'
mesons. Phenomenological applications of this mixing scheme are presented with
particular interest focussed on isospin symmetry breaking in QCD estimated as
eta and eta' admixtures to the pion. In contrast to previous work a possible
difference in the basis decay constants f_u and f_d is considered and
consequences of this potentially large effect on the strength of isospin
symmetry breaking is discussed.


title:
Towards Better Constraints on the Higgs Boson Mass: Two-Loop Fermionic
  Corrections to sin^2(theta_eff)

abstract:
  The complete two-loop electroweak fermionic corrections to the effective
leptonic weak mixing angle, sin^2(theta_eff), are now available. Here we
shortly present the methods applied and illustrate the implications on indirect
prediction for the Higgs boson mass within the standard model.


title: Ideas for future liquid Argon detectors

abstract:
  We outline a strategy for future experiments on neutrino and astroparticle
physics based on the use, at different detector mass scales (100 ton and 100
kton), of the liquid Argon Time Projection Chamber (LAr TPC) technique. The LAr
TPC technology has great potentials for both cases with large degree of
interplay between the two applications and a strong synergy. The ICARUS R&D
programme has demonstrated that the technology is mature and that one can built
a large ($\sim$ 1 kton) LAr TPC. We believe that one can conceive and design a
very large mass LAr TPC with a mass of 100 kton by employing a monolithic
technology based on the use of industrial, large volume cryogenic tankers
developed by the petro-chemical industry. We show a potential implementation of
a large LAr TPC detector. Such a detector would be an ideal match for a
Superbeam, Betabeam or Neutrino Factory, covering a broad physics program that
could include the detection of atmospheric, solar and supernova neutrinos, and
search for proton decays, in addition to the rich accelerator neutrino physics
program. In parallel, physics is calling for another application of the LAr TPC
technique at the level of 100 ton mass, for low energy neutrino physics and for
use as a near station setup in future long baseline neutrino facilities. We
present here the main physics objectives and outline the conceptual design of
such a detector.


title:
A review of forward proton tagging at 420m at the LHC, and relevant
  results from the Tevatron and HERA

abstract:
  We review the theoretical and experimental motivations behind recent
proposals to add forward proton tagging detectors to the LHC experiments as a
means to search for new physics. We also review the current diffractive
programs at the Tevatron and HERA, focusing in particular on measurements which
will have a direct impact on the case for forward detectors at the LHC.


title: Status of Global QCD Analysis and the Parton Structure of the Nucleon

abstract:
  The current status of global QCD analysis of parton distribution functions of
the nucleon is reviewed. Recent progress made in determining various features
of the parton structure of the nucleon, as well as outstanding open questions
are discussed. These include: the small-$x$ and large-$x$ behavior of the
partons, particularly the gluon; the differentiation of $u$ and $d$ quarks; the
strangeness sea ($s+\bar{s}$), the strangeness asymmetry ($s-\bar{s}$); and the
heavy quark distributions $c$ and $b$. Important issues about assessing the
uncertainties of parton distributions and their physical predictions are
considered. These developments are all critical for the physics programs of
HERA II, Tevatron Run II, RHIC, and LHC.


title: A New Method for Combining NLO QCD with Shower Monte Carlo Algorithms

abstract:
  I show that with simple extensions of the shower algorithms in Monte Carlo
programs, one can implement NLO corrections to the hardest emission that
overcome the problems of negative weighted events found in previous
implementations.
  Simple variants of the same method can be used for an improved treatment of
matrix element corrections in Shower Monte Carlo programs.


title: Masses and Mixing of Quarks and Leptons in Product-Group Unification

abstract:
  We discuss a supersymmetric unified model based on a product gauge group
SU(5)\times SU(5)\times SU(5), where the gauge symmetry breaking is achieved
without the adjoint or higher-dimensional Higgs field, and the doublet-triplet
splitting in the Higgs masses is realized by the use of the discrete symmetry.
In this article we present an explicit model for realistic fermion masses with
the discrete symmetries Z_7\times Z_2. It is shown that all the observed masses
and mixing angles for quarks and leptons, including neutrinos, are well
described by the breaking of the symmetries imposed in the model. Especially,
the maximal and large mixing angles in the atmospheric and solar neutrino
oscillations are obtained as the most preferred values, and the typical value
of the neutrino mixing element U_{e3} is 0.1-0.3. We also point out the
non-trivial relations among the \mu-parameter for the Higgs mass, the charged
fermion hierarchies, and the neutrino masses. These relations suggest that the
scale of \mu is of order of the weak scale.


title: The Glueball Candidate \eta(1440) as \eta Radial Excitation

abstract:
  The Particle Data Group decided to split the $\eta(1440)$ into two states,
called $\eta_L$ and $\eta_H$. The $\eta(1295)$ and the $\eta_H$ are supposed to
be the radial excitations of the $\eta$ and $\eta'$, respectively. The $\eta_L$
state cannot be accomodated in a quark model; it cannot be a $q\bar q$ state,
however, it might be a glueball. In this contribution it is shown that that the
$\eta(1295)$ does not have the properties which must be expected for a radially
excited state. The splitting of the $\eta(1440)$ is traced to a node in the
wave function of a radial excitation. Hence the two peaks, $\eta_L$ and
$\eta_H$, originate from one resonance which is interpreted here as first
radial excitation of the $\eta$.


title:
Vacuum polarization radiative correction to the parity violating
  electron scattering on heavy nuclei

abstract:
  The effect of vacuum polarization on the parity violating asymmetry in the
elastic electron-nucleus scattering is considered. Calculations are performed
in the high-energy approximation with an exact account for the electric field
of the nucleus. It is shown that the radiative correction to the parity
violating asymmetry is logarithmically enhanced and the value of the correction
is about -1%.


title:
The radiative corrections of the electroweak chiral Lagrangian with
  renormalization group equations

abstract:
  We show the computational procedure of the renormalization of the electroweak
chiral Lagrangian (the 4D Higgsless standard model), and provide one simplified
version of its one-loop renormalization group equations, which we demonstrate
its simplicity and reliability. By analyzing the solutions of the one-loop
renormalization group equations of the electroweak chiral Lagrangian, we study
the parameter space of the precision test parameters at ultraviolet cutoff with
the current low energy experimental constraints. We find that the region of the
permitted parameter space can be greatly amplified (1 to 2 order) by the
radiative corrections of those undetermined anomalous couplings.


title:
Extremely energetic cosmic neutrinos and their impact on particle
  physics and cosmology

abstract:
  Existing and planned neutrino detectors, sensitive in the energy regime from
10^{17} eV to 10^{23} eV, offer opportunities for particle physics and
cosmology. In this contribution, we discuss particularly the possibilities to
infer information about physics beyond the Standard Model at center-of-mass
energies beyond the reach of the Large Hadron Collider, as well as to detect
big bang relic neutrinos via absorption dips in the observed neutrino spectra.


title: Geo-Neutrinos: a short review

abstract:
  Geo-neutrino detection will determine the amount of long lived radioactive
elements within our planet and fix the debated radiogenic contribution to the
terrestrial heat. In addition, it will provide a direct test of the Bulk
Silicate Earth model, a fundamental cosmochemical paradigm about the origin of
the Earth. Unorthodox models of Earth's core (including the presence of
potassium or the possibility of a giant reactor) can also be checked. This
short review presents status and prospects of the field.


title:
Scalar O(N) Model at Finite Temperature -- 2PI Effective Potential in
  Different Approximations

abstract:
  We calculate the two-particle irreducible (2PI) effective potential of the
O(N) linear sigma model in 1+1 dimensions. The approximations we use are the
next-to-leading order of a 1/N expansion (for arbitrary N) and a kind of
"resummed loop approximation" for N=1. We show that the effective potential of
the 1/N expansion is convex for N=4 and N=10 whereas it is not for the "loop"
expansion and the case N=1 of the 1/N expansion.


title: Dynamical Gauge-Higgs Unification (SUSY04)

abstract:
  Dynamical gauge-Higgs unification is presented in higher dimensional gauge
theory, in which both adjoint and fundamental Higgs fields are a part of gauge
fields. Dynamical gauge symmetry breaking is induced through the Hosotani
mechanism. Gauge theory, including the U(3) x U(3) model, is examined on M^4 x
(T^2/Z_2).


title:
Does Reactor Neutrino Experiment Play an Important Role in Theta_{13} of
  Lepton Mixing (PMNS) Matrix ?

abstract:
  Reactor neutrinos play an important role in determining parameter theta_{13}
in the lepton mixing (PMNS) matrix. A next important step on measuring PMNS
matrix could be to build another reactor neutrino experiment, for example, DaYa
bay in China, to search the possible oscillations via sin^2 (2theta_{13}) and
Delta m^2_{13}. We consider 4 different schemes for positions of three 8-ton
detectors of this experiment, and simulate the results with respect to an array
of assumed ''true'' values of physics parameters. Using three kinds of analysis
method, we suggest a best scheme for this experiment which is to place a
detector 2200m ~ 2500m symmetrically away from two reactors, and to put the
other two detectors closer to their corresponding reactors respectively, almost
at a 100m ~ 200m distance. Moreover, with conservative assumption on the
experimental technique, we construct series of allowed regions from our
simulation results, and give detailed explanations therein.


title: QCD Down Under: Building Bridges

abstract:
  The strong coupling regime of QCD is responsible for 99% of hadronic
phenomena. Though considerable progress has been made in solving QCD in this
non-perturbative region, we nevertheless have to rely on a disparate range of
models and approximations. If we are to gain an understanding of the underlying
physics and not just have numerical answers from computing `` black'' boxes, we
must build bridges between the parameter space where models and approximations
are valid to the regime describing experiment, and between the different
modellings of strong dynamics. We describe here how the
Schwinger-Dyson/Bethe-Salpeter approach provides just such a bridge, linking
physics, the lattice and experiment.


title: Non-Gibbs Particle Spectra from Thermal Equilibrium

abstract:
  We propose that transverse momentum spectra with power-law tails observed in
ultrarelativistic heavy ion collisions can be interpreted as originating in a
medium in thermal equilibrium. General conditions on the dynamical equations
are formulated, leading in equilibrium to various energy distributions of
particles. Starting with the linear Fokker-Planck equation we analyze
conditions for Boltzmann-Gibbs, Tsallis, or other equilibrium distributions
based upon the dependence of fluctuation and dissipation on the energy of the
observed subsystem. RHIC neutral pion data definitely exclude Boltzmann-Gibbs
distribution over the entire range of observed transverse momenta.


title: Precision Electroweak Physics and Higgsless Models in Warped Space

abstract:
  We study tree level corrections to precision electroweak physics in the
recently proposed Higgsless models in warped space. Such models inherit from
their similarity with technicolor theories a large contribution to the oblique
parameters, S in particular. We show that it is possible to suppress S using
brane induced kinetic terms and unequal left-right bulk gauge couplings, paying
the price of heavy KK modes. In the allowed region, they are eventually
ineffective in restoring perturbative unitarity in W scattering above 2 TeV.
Although it looks like a Higgsless models' bane, it has been recently shown
that such problem can be easily solved delocalizing the light fermions.


title: SU(3)c x SU(3)L x U(1)X gauge symmetry from SU(4)PS x SU(4)L+R

abstract:
  We present a 3-3-1 model as a subgroup of SU(4)PS X SU(4)L+R gauge symmetry
with symmetry-breaking pattern SU(4)->SU(3) X U(1) for both SU(4) groups. A
Pleitez-Frampton type of 3C-3L-1X model is obtained with charged heavy leptons
and SU(3)L gauge bosons (B-L= 0) which are not bileptons. The neutral gauge
bosons include gamma,Z,Z'and a fourth Z" which decouples from rest but couples
to ordinary fermions. The two-body decay rates for Z' are presented along with
their mixings and interactions.


title:
Multiplicities and bulk thermodynamic quantities at
  \mathversion{bold}{$\sqrt{s_{NN}}=130$} GeV with SHARE

abstract:
  We introduce the Statistical Hadronization with Resonances (SHARE) suite of
programs and perform a study of particle multiplicities as well as bulk
thermodynamic quantities for the RHIC Au--Au reactions at $\sqrt{s_{NN}}=130$
GeV. We also show that the statistical hadronization model, with parameters
fitted to match pion, proton and hyperon ratios, in turn correctly and
consistently reproduces rapidity particle multiplicity.


title: Fragmentation in H->b bbar Processes

abstract:
  I study bottom quark fragmentation in the Standard Model Higgs decay H->b
bbar, within the framework of perturbative fragmentation functions. I resum
large collinear logarithms ln(m_H^2/m_b^2) in the next-to-leading logarithmic
(NLL) approximation, using the DGLAP evolution equations. Soft contributions to
the MSbar coefficient function and to the initial condition of the perturbative
fragmentation function are resummed to NLL accuracy as well. The implementation
of collinear and soft resummation has a relevant impact on the b energy
spectrum, which exhibits a milder dependence on factorization and
renormalization scales and on the Higgs mass. I present some predictions on the
energy distribution of b-flavoured hadrons in Higgs decay, making use of data
from LEP and SLD experiments to fit a few hadronization models. I also compare
the phenomenological results yielded by a few processes recently provided with
NLL collinear and soft resummations.


title: Higgsless Standard Model in Six Dimensions

abstract:
  We present a Higgsless Standard Model in six dimensions, based on the
Standard Model gauge group SU(2)xU(1), with two flat extra dimensions
compactified on a rectangle. The electroweak symmetry is broken by boundary
conditions and realistic gauge boson masses can be accomodated by proper choice
of the compactification scales and brane kinetic terms. With respect to oblique
corrections, the agreement with electroweak precision tests is somewhat
improved compared to the simplest five-dimensional Higgsless models.


title: The Littlest Higgs Model and One-Loop Electroweak Precision Constraints

abstract:
  We present in this talk the one-loop electroweak precision constraints in the
Littlest Higgs model, including the logarithmically enhanced contributions from
both fermion and scalar loops. We find the one-loop contributions are
comparable to the tree level corrections in some regions of parameter space. A
low cutoff scale is allowed for a non-zero triplet VEV. Constraints on various
other parameters in the model are also discussed. The role of triplet scalars
in constructing a consistent renormalization scheme is emphasized.


title: Hadron Spectroscopy without Constituent Glue

abstract:
  Glueballs and hybrids are predicted to exist but searches for them have
failed to provide conclusive evidence. One--gluon exchange is not an important
part of strong interactions in this energy regime. Instead, quarks seem to
interact indirectly, via changes of the QCD vacuum. Strong interactions seem to
be governed by instanton--induced interactions; the chiral soliton model gives
a more suitable interpretation of the $\Theta^+(1540)$ than models based on the
dynamics of four quarks and one antiquark.


title: Fermion Masses and Neutrino Oscillations in SO(10) x SU(2)_{F}

abstract:
  We present in this talk a model based on SO(10) x SU(2)_{F} having symmetric
mass textures with 5 zeros constructed by us recently. The symmetric mass
textures arising from the left-right symmetry breaking chain of SO(10) give
rise to good predictions for the masses, mixing angles and CP violation
measures in the quark and lepton sectors (including the neutrinos), all in
agreement with the most up-to-date experimental data within 1 sigma. Various
lepton flavor violating decays in our model are also investigated. Unlike in
models with lop-sided textures, our prediction for the decay rate of mu -> e
gamma is much suppressed and yet it is large enough to be probed by the next
generation of experiments. The observed baryonic asymmetry in the Universe can
be accommodated in our model utilizing soft leptogenesis.


title: Helicity Zero Particles

abstract:
  In this paper we consider the possibility that a vector particle with mass
might exist in only one helicity state, rather than the usual three states with
helicity equal to +1, -1, and 0. Massless particles, of course, need only have
one helicity state. (For invariance under parity, they need two.) We show that
a massive vector particle can exist only in the helicity-0 state, if it is
composed of a fermion-antifermion pair and they are massless. This requires the
mass to be generated by the interaction between the massless particles. An
interaction of the form Psi^dagger i gamma_4 gamma_mu Psi is attractive between
particle and antiparticle and preserves helicity. Methods for experimentally
distinguishing an helicity-0 vector particle from both a spin-0 pseudoscalar
particle and a spin-1 vector particle are discussed.


title: Color Superconductivity at Moderate Baryon Density

abstract:
  This article focuses on the two-flavor color superconducting phase at
moderate baryon density. In order to simultaneously investigate the chiral
phase transition and the color superconducting phase transition, the
Nambu-Gorkov formalism is extended to treat the quark-antiquark and diquark
condensates on an equal footing. The competition between the chiral condensate
and the diquark condensate is analyzed. The cold dense charge neutral
two-flavor quark system is investigated in detail. Under the local charge
neutrality condition, the ground state of two-flavor quark matter is sensitive
to the coupling strength in the diquark channel. When the diquark coupling
strength is around the value obtained from the Fierz transformation or from
fitting the vacuum bayron mass, the ground state of charge neutral two-flavor
quark matter is in a thermal stable gapless 2SC (g2SC) phase. The unusual
properties at zero as well as nonzero temperatures and the chromomagnetic
properties of the g2SC phase are reviewed. Under the global charge neutrality
condition, assuming the surface tension is negligible, the mixed phase composed
of the regular 2SC phase and normal quark matter is more favorable than the
g2SC phase. A hybrid nonstrange neutron star is constructed.


title: Diquarks as Inspiration and as Objects

abstract:
  It is plausible that several of the most profound aspects of low-energy QCD
dynamics are connected to diquark correlations, including: paucity of exotics
(which is the foundation of the quark model and of traditional nuclear
physics), similarity of mesons and baryons, color superconductivity at high
density, hyperfine splittings, $\Delta I = 1/2$ rule, and some striking
features of structure and fragmentation functions. After a brief overview of
these issues, I discuss how diquarks can be studied in isolation, both
phenomenologically and numerically, and present approximate mass differences
for diquarks with different quantum numbers. The mass-loaded generalization of
the Chew-Frautschi formula provides an essential tool.


title: Weak mixing angle at low energies

abstract:
  We determine the weak mixing angle in the MS-bar scheme at energy scales
relevant for present and future low energy electroweak measurements. We relate
the renormalization group evolution of the weak mixing angle to the
corresponding evolution of the QED coupling and include higher-order terms in
alpha_s and alpha that had not been treated in previous analyses. We also
up-date the analysis of non-perturbative hadronic contributions and argue that
the associated uncertainty is small compared to anticipated experimental
errors. The resulting value of the low-energy weak mixing angle is sin^2
theta_W (0) = 0.23867 +- 0.00016.


title: The Effect of Extra Dimension on Dark Matter

abstract:
  We investigate the thermal relic density of a cold dark matter in the brane
world cosmology. Since the expansion law in a high energy regime is modified
from the one in the standard cosmology, if the dark matter decouples in such a
high energy regime its relic number density is affected by this modified
expansion law. We derive analytic formulas for the number density of the dark
matter. It is found that the resultant relic density is characterized by the
``transition temperature'' at which the modified expansion law in the brane
world cosmology is connecting with the standard one, and can be considerably
enhanced compared to that in the standard cosmology, if the transition
temperature is low enough. The implication to the neutralino dark matter also
is mentioned.


title: Top mode standard model and extra dimensions

abstract:
  We perform the most attractive channel (MAC) analysis in the top mode
standard model with TeV-scale extra dimensions, where the standard model gauge
bosons and the third generation of quarks and leptons are put in D(=6,8,...)
dimensions. In order to make the scenario viable, only the attractive force of
the top condensate should exceed the critical coupling, while other channels
such as the bottom and tau condensates should not. It turns out that the top
condensate can be the MAC for D=8, whereas the tau condensation is favored for
D=6. On the basis of the renormalization group equations for the top Yukawa and
Higgs quartic couplings, we predict masses of the top quark and the Higgs boson
for D=8 as m_t=172-175 GeV and m_H=176-188 GeV, respectively.


title: New Constraint on Squark Flavor Mixing from 199Hg EDM

abstract:
  We obtain a new constraint on the CP-violating flavor mixing between the
left-handed top scalar quark (\tilde{t}_L) and charm scalar quark
(\tilde{c}_L), by considering a chargino loop contribution to chromo-electric
dipole moment of strange quark, which is limited by the electric dipole moment
of the neutron and atoms. It is found that the flavor mixing should be
suppressed to the level of {\cal O}(0.1) for the CP phase of order unity.
Although it is much stronger than the known constraint from the chargino loop
contribution to b \to s \gamma, the moderate constraint we obtain here is
argued to leave room for sizable supersymmetric contribution to the CP
asymmetry in B_d^0 \to \phi K^0.


title:
Supersymmetric Contributions to the B -> phi K Decays in the PQCD
  Approach

abstract:
  We study the effects of supersymmetric contribution on both the B_d -> phi
K^0 and B^\pm -> phi K^\pm modes using the perturbative QCD approach. We
estimate the deviation of mixing-induced and direct CP asymmetries and discuss
the strong-phase dependence of them.


title:
Dihadron interference fragmentation functions in proton-proton
  collisions

abstract:
  We study the production of hadron pairs in proton-proton collisions,
selecting pairs with large total transverse momentum with respect to the beam,
and small relative transverse momentum, i.e., belonging to a single jet with
large transverse momentum. We describe the process in terms of dihadron
fragmentation functions. We consider the production of one pair in polarized
collisions (with one transversely polarized proton) and the production of two
pairs in unpolarized collisions. In the first case, we discuss how to observe
the quark transversity distribution in connection with a specific class of
dihadron fragmentation functions, named interference fragmentation functions.
In the second case, we suggest how to determine the latter and also how to
observe linearly polarized gluons.


title: Color Glass Condensate in High Energy QCD

abstract:
  A brief review of major theoretical aspects of color glass condensate physics
is given.


title:
Pion structure: from nonlocal condensates to NLO analytic perturbation
  theory

abstract:
  A pion distribution amplitude, derived from nonlocal QCD sum rules, has been
employed to calculate $F_{\gamma^*\gamma\to\pi}(Q^2)$ using light-cone sum
rules, and $F_{\pi}(Q^2)$ in NLO QCD perturbation theory. Predictions are
presented for both observables and found to be in good agreement with the
corresponding data. Calculating the hard pion form factor by Analytic
Perturbation Theory to two-loop order, it is shown that the
renormalization-scheme and scale-setting dependencies are diminished.


title:
Tachyonic preheating using 2PI-1/N dynamics and the classical
  approximation

abstract:
  We study the process of tachyonic preheating using approximative quantum
equations of motion derived from the 2PI effective action. The O(N) scalar
(Higgs) field is assumed to experience a fast quench which is represented by an
instantaneous flip of the sign of the mass parameter. The equations of motion
are solved numerically on the lattice, and the Hartree and 1/N-NLO
approximations are compared to the classical approximation. Classical dynamics
is expected to be valid, since the occupation numbers can rise to large values
during tachyonic preheating. We find that the classical approximation performs
excellently at short and intermediate times, even for couplings in the larger
region currently allowed for the SM Higgs. This is reassuring, since all
previous numerical studies of tachyonic preheating and baryogenesis during
tachyonic preheating have used classical dynamics. We also compare different
initializations for the classical simulations.


title:
Generation of circularly polarized photons for a linear collider
  polarized positron source

abstract:
  Various methods of obtaining longitudinally polarized positrons for future
linear colliders are reviewed. Special attention is paid to the schemes using
circularly polarized high-energy photons for positron production. Most
effectively such photons are obtained from electrons passing through a helical
undulator or colliding with a circularly polarized laser wave. Spectrum and
polarization of radiation emitted during helical motion of electrons are
considered in detail. A new simple presentation of known formulas is used to
account for the influence of the wave intensity, of the electron-beam angular
divergence, of the collimation of radiation, and of the lateral and temporal
profiles of the laser bunch on the radiation properties.


title: Resonant Nucleation

abstract:
  We investigate the role played by fast quenching on the decay of metastable
(or false vacuum) states. Instead of the exponentially-slow decay rate per unit
volume, $\Gamma_{\rm HN} \sim \exp[-E_b/k_BT]$ ($E_b$ is the free energy of the
critical bubble), predicted by Homogeneous Nucleation theory, we show that
under fast enough quenching the decay rate is a power law $\Gamma_{\rm RN} \sim
[E_b/k_BT]^{-B}$, where $B$ is weakly sensitive to the temperature. For a range
of parameters, large-amplitude oscillations about the metastable state trigger
the resonant emergence of coherent subcritical configurations. Decay mechanisms
for different $E_b$ are proposed and illustrated in a (2+1)-dimensional scalar
field model.


title: EDDE Monte Carlo event generator

abstract:
  EDDE is a Monte Carlo event generator, under construction, for different
Exclusive Double Diffractive Events. The program is based on the extended
Regge-eikonal approach for "soft" processes. Standard Model and its extensions
are used for "hard" fusion processes. An interface to PYTHIA, CMSJET and CMKIN
is provided.


title: The Sextet Higgs Mechanism and the Pomeron

abstract:
  If electroweak symmetry breaking is a consequence of color sextet quark
chiral symmetry breaking, dramatic, large cross-section, effects are to be
expected at the LHC - with the pomeron playing a prominent role. The symmetry
breaking is tied to a special solution of QCD which can be constructed, at
high-energy, via the chiral anomaly and reggeon diagrams. There is confinement
and chiral symmetry breaking, but physical states contain both quarks and a
universal, anomalous, wee gluon component. A variety of Cosmic Ray effects
could be supporting evidence, including the knee in the spectrum and the
ultra-high energy events. The sextet neutron should be stable and is a natural
dark matter candidate. A large $E_T$ jet excess at Fermilab, and large $x$ and
$Q^2$ events at HERA, would be supporting accelerator evidence. Further
evidence, including diffractive-related vector boson pair production and top
quark related phenomena, could be seen at Fermilab as data is accumulated.


title:
Neutrino Oscillations and Collider Test of the R-parity Violating mSUGRA
  Model

abstract:
  We study the R-parity violating minimal supergravity models accounting for
the observed neutrino masses and mixing, which can be tested in future collider
experiments. The bi-large mixing can be explained by allowing five dominant
tri-linear couplings $ \lambda'_{1,2,3}$ and $\lambda_{1,2}$. The desired ratio
of the atmospheric and solar neutrino mass-squared differences can be obtained
in a very limited parameter space where the tree-level contribution is tuned to
be suppressed. In this allowed region, we quantify the correlation between the
three neutrino mixing angles and the tri-linear R-parity violating couplings.
Such a prediction on the couplings can be tested in the next linear colliders
by observing the branching ratios of the lightest supersymmetric particle
(LSP). For the stau or the neutralino LSP, the ratio $|\lambda_1|^2:
|\lambda_2|^2: |\lambda_1|^2 + |\lambda_2|^2$ can be measured by establishing
$Br(e\nu): Br(\mu\nu) : Br(\tau\nu)$ or $Br(\nu e^\pm \tau^\mp):
Br(\nu\mu^\pm\tau^\mp) : Br(\nu\tau^\pm\tau^\mp)$, respectively. The
information on the couplings $\lambda'_i$ can be drawn by measuring $Br(l_i t
\bar{b}) \propto |\lambda'_i|^2$ if the neutralino LSP is heavier than the top
quark.


title: Glueball Regge trajectories and the Pomeron -- a lattice study --

abstract:
  We perform lattice calculations of the lightest J=0,2,4,6 glueball masses in
the D=3+1 SU(3) gauge theory and extrapolate to the continuum limit. Assuming
that these masses lie on linear Regge trajectories we find a leading glueball
trajectory alpha(t)=0.93(24) + 0.28(2)alpha'_R t, where alpha'_R ~ 0.9 GeV^{-2}
is the slope of the usual mesonic Regge trajectory. This glueball trajectory
has an intercept and slope similar to that of the Pomeron trajectory. We
contrast this with the situation in D=2+1 where the leading glueball Regge
trajectory is found to have too small an intercept to be important for
high-energy cross-sections. We interpret the observed states and trajectories
in terms of open and closed string models of glueballs. We discuss the large-N
limit and perform an SU(8) calculation that hints at new states based on closed
strings in higher representations.


title: Thermal features far from equilibrium: Prethermalization

abstract:
  The phenomenon of prethermalization and the subsequent steps of
thermalization are analyzed in the framework of the chiral quark model. We
solve the quantum equations of motion of the field theory derived from the 2PI
effective action and study the time scales of equilibration. We find that
already after a 0.6 fm/c long period of time some equilibrium features appear,
even though the system is still far from equilibrium. This might be an
ingredient for understanding the success of ideal hydrodynamic description.


title: Mirror World, Supersymmetric Axion and Gamma Ray Bursts

abstract:
  A modification of the relation between axion mass and the PQ constant permits
a relaxation of the astrophysical constraints, considerably enlarging the
allowed axion parameter space. We develop this idea in this paper, discussing a
model for an {\it ultramassive} axion, which essentially represents a
supersymmetric Weinberg-Wilczek axion of the mirror world. The experimental and
astrophysical limits allow a PQ scale f_a ~ 10^4-10^6 GeV and a mass m_a ~
1MeV, which can be accessible for future experiments.
  On a phenomenological ground, such an {\it ultramassive} axion turns out to
be quite interesting. It can be produced during the gravitational collapse or
during the merging of two compact objects, and its subsequent decay into e+e-
provides an efficient mechanism for the transfer of the gravitational energy of
the collapsing system to the electron-positron plasma. This could resolve the
energy budget problem in the Gamma Ray Bursts and also help in understanding
the SN type II explosion phenomena.


title:
Improving Extractions of |Vcb| and the b Quark Mass from Semileptonic
  Inclusive B Decay

abstract:
  Recent advances in improving extractions of |Vcb| and m_b from spectra of
semileptonic inclusive B decay are reported. Results of a general moment
analysis of the lepton energy spectrum and the hadronic invariant mass spectrum
are summarized. The calculation of the general O(\alpha_s) structure functions
for semileptonic B decay is reported, which has allowed the calculation of the
O(\alpha_s Lambda_{QCD} /m_b) terms for the hadronic invariant mass moments to
be carried out. Recent theoretical advances and improvements in experimental
data has allowed extractions of the CKM element |Vcb| to improve to the 2%
level.


title: Quaternion Family Symmetry of Quarks and Leptons

abstract:
  To a first approximation, the quark mixing matrix has $\theta^q_{13} =
\theta^q_{23} = 0$, whereas the lepton mixing matrix has $\theta^l_{23} =
\pi/4$. We show how this structure may be understood if the family symmetry is
$Q_8$, the quaternion group of eight elements. We find three viable scenarios
for the Majorana neutrino mass matrix, each depending on 4 parameters and
predicting a specific mass spectrum. The phenomenology of the two Higgs
doublets which generate the Yukawa sector is analyzed and testable predictions
are derived. We discuss also the closely related model based on $D_4$, the
symmetry group of the square.


title: Chiral Symmetry Breaking in QCD

abstract:
  Chiral Symmetry Breaking (CSB) is derived in QCD starting from the QCD
Lagrangian and using Field Correlators Method (FCM). The kernel in the
resulting equations responsible for CSB is directly connected to confinement,
and therefore both phenomena occur and vanish together as supported by lattice
data. Chiral Lagrangian and quark-meson Lagrangian are derived with explicit
coefficients and compared to standard expressions. Spectrum of Nambu-Goldstone
mesons and their radial excitations is calculated in good agreement with
experiment.


title:
Distinguishing Higgs models in H^+ -> tau^+ nu /t b-bar at large tan
  beta

abstract:
  We present an experimental and theoretical analysis of the ratio of branching
ratios R=BR(H^+ -> tau^+ nu)/BR(H^+ -> t b-bar) of charged Higgs boson decays
as a discriminant quantity between supersymmetric and non-supersymmetric
models.


title: Could we rotate proton decay away?

abstract:
  In this work we investigate the possibility to completely rotate away proton
decay. We show that by choosing specific mass matrices for fermions it is
possible to accomplish this in flipped SU(5).


title: A global description of heavy-ion collisions

abstract:
  A model for the evolution of ultrarelativistic heavy-ion collisions at both
CERN SPS and RHIC top energies is presented. Based on the assumption of
thermalization and a parametrization of the space-time expansion of the
produced matter, this model is able to describe a large set of observables
including hadronic momentum spectra, correlations and abundancies, the emission
of real photons, dilepton radiation and the suppression pattern of charmonia.
Each of these obervables provides unique capabilities to study the reaction
dynamics and taken together they form a strong and consistent picture of the
evolving system. Based on the emission of hard photons measured at SPS, we
argue that a strongly interacting, hot and dense system with temperatures above
250 MeV has to be created early in the reaction. Such a system is bound to be
different from hadronic matter and likely to be a quark-gluon plasma, and we
find that this assumption is in line with the subsequent evolution of the
system that is reflected in other observables.


title: CP Violation in Supersymmetry

abstract:
  A review about some recent studies on the determination of the CP-violating
complex parameters in supersymmetry at an e^+ e^- linear collider is presented.
CP-even observables, like masses, cross sections and branching ratios, can have
a strong dependence on the supersymmetric phases. However, CP-odd observables,
like asymmetries based on triple product correlations, are necessary to
unambiguously establish CP violation. In the chargino and neutralino sector
these asymmetries can be as large as 30 % and will therefore be an important
tool for the search for CP-violating effects in supersymmetry.


title: Neutrino mass constraints on $\mu$-decay and $\pi^0\to \nu \bar{\nu}$

abstract:
  In this letter, we show that upper-limits on neutrino mass translate into
upper-limits on the class of neutrino-matter interactions that can generate
loop corrections to the neutrino mass matrix. We apply our results to $\mu$-
and $\pi$-decays and derive model-independent limits on six of the ten
parameters used to parametrize contributions to $\mu$-decay that do not belong
to the standard model.
  These upper-limits provide improved constraints on the five Michel
parameters,
  $\rho,\xi^\prime,\xi^{\prime\prime},\alpha,\alpha^\prime$, that exceed PDG
constraints by at least one order of magnitude. For $\pi^0\to \nu \bar{\nu}$ we
find for the branching ratio: $B(\pi^0\to\nu \bar\nu) < 10^{-10}$.


title: Electron to selectron pair conversion in a SUSY bubble

abstract:
  In the standard model, energy release in dense stars is severely restricted
by the Pauli exclusion principle. However, if, in regions of space of high
fermion degeneracy, there is a phase transition to a state of exact
supersymmetry (SUSY), fermion to sfermion pair conversion followed by radiative
transitions to the Bose ground state could lead to a highly collimated gamma
ray burst. We calculate the cross section for electron to selectron pair
conversion in a SUSY bubble and construct a monte carlo for the resulting
sfermion amplification by stimulated emission.


title: Fermion Masses and Bi-large Lepton Mixing from Singular Matrices

abstract:
  We discuss conditions under which bi-large mixing in the lepton sector is
achieved assuming that all Yukawa matrices and the right-handed neutrino mass
matrix have the same singular form in the leading order. Due to obvious quark
lepton symmetry, this approach can be embedded into grand unified theories. The
right-handed neutrino mass scale can be identified with the GUT scale and, as a
consequence of third generation Yukawa coupling unification, the mass of the
lightest neutrino is given as (m_{top}^2/M_{GUT})|U_{\tau 1}|^2 in the leading
order. This relation does not depend on the exact form of mass matrices.


title:
Flavor Structure of Scherk-Schwarz Supersymmetry Breaking and
  Constraints from Low Energy Processes

abstract:
  5D orbifold has two attractive features: quasi-localized matter fields can
naturally reproduce hierarchical Yukawa coupling, while supersymmetry breaking
is inherently built in by the Scherk-Schwarz mechanism. We examine the
consequence of this quasi-localization and the Scherk-Schwarz supersymmetry
breaking in low energy flavor violating processes, under the assumption that
physics below the compactification scale is described by the minimal
supersymmetric standard model (MSSM) and find $BR(\mu \to e,\gamma)$ and
$\epsilon_K$ impose stringent constraint on flavor structure of the
Scherk-Schwarz supersymmetry breaking. Chirality measurement in lepton flavor
violating processes is crucial to deduce the surviving flavor structure.


title: B->J/psi K* in a Supersymmetric Right-handed Flavor Mixing Scenario

abstract:
  A supersymmetric extension of the Standard Model, with maximal s_R-b_R mixing
and a new source of CP violation, contains all the necessary ingredients to
account for a possible anomaly in the measured CP asymmetry in B->phi K_s
decay. In the same framework we study the decay B->J/psi K*, paying particular
attention to observables that can be extracted by performing a time dependent
angular analysis, and become nonzero because of new physics effects.


title: The gluon content of the $\eta$ and $\eta^{\prime}$ mesons

abstract:
  We analyze power-suppressed contributions to singlet pseudoscalar $\eta$ and
$\eta^{\prime}$ meson transition form factors. These corrections stem from
endpoint singularities and help improve the agreement between QCD theory and
the experimental data, in particular, at low-momentum transfers. Using the CLEO
data, we extract information on the profile of the $\eta_1$ and $\eta_8$
distribution amplitudes in the $SU(3)_{F}$ octet-singlet basis employing both
the one-angle and the two-angle mixing schemes. In the former scheme, we find
good agreement with the CLEO data, while in the second case, our approach
requires non-asymptotic profiles for these mesons.


title: Tau Polarization as a Probe of CP of a Light Higgs Boson

abstract:
  Unfortunately, we have discovered a bug in the computer program which
invalidates the numerical results presented in this talk. While our formulae
and the dependencies are correct, the numerical values of the asymmetries
presented in the paper go down by more than two orders of magnitude. The new
results will be presented elsewhere.


title: SDECAY - A Fortran Code for SUSY Particle Decays in the MSSM

abstract:
  The Fortran code SDECAY calculates the decay widths and branching ratios of
all supersymmetric (SUSY) particles in the Minimal Supersymmetric Standard
Model (MSSM), including higher order effects. The usual two-body decays of
sfermions and gauginos as well as the three-body decay modes of charginos,
neutralinos and gluinos are included. Furthermore, the three-body stop and
sbottom decays and even the four-body stop decays are calculated. The important
loop-induced decays, the QCD corrections to the two-body widths involving
strongly interacting particles and the dominant electroweak effects to all
processes are evaluated as well.


title: The Charged Higgs Boson Search at LHC

abstract:
  This review starts with a brief introduction to the charged Higgs boson
$(H^\pm)$ in the Minimal Supersymmetric Standard Model (MSSM). It then
discusses the prospects of a relatively light $H^\pm$ boson search via top
quark decay and finally a heavy $H^\pm$ boson search at LHC. The viable
channels for $H^\pm$ search are discussed, with particular emphasis on the
$H^\pm \to \tau \nu $ decay channel.


title: $b\bar b$ Description with a Screened Potential

abstract:
  Recent lattice QCD calculations suggest a rather abrupt transition in the
confinig potential from a linear to a constant behavior. We analyze the effects
of such a fast deconfinement in the simplest non-relativistic system,
bottomonium.


title: Realization of Minimal Supergravity

abstract:
  Minimal supergravity mediation of supersymmetry breaking has attracted much
attention due to its simplicity, which leads to its predictive power. We
consider how Nature possibly realizes minimal supergravity through inflationary
selection of the theory. Minimality is impressively consistent with the present
observational bounds and it might be tested with the aid of low-energy soft
parameters obtained in future experiments.


title: A prediction for U(e3) from patterns in the charged lepton spectra

abstract:
  It is shown that empirical relations between the charged lepton spectra and
the quark spectra together with a bimaximal or near bimaximal neutrino mixing
matrix necessarily imply that there is a contribution to U(e3) given by
thetaC/3/sqrt(2) ~ sqrt(m_{e}/2m_{mu}) ~ 0.052, where thetaC is the Cabibbo
angle. This prediction could be tested in the near future reactor experiments.
The charged lepton mixing also generates a less robust prediction for the angle
theta(23) and a small contribution to the phase delta.


title: Minimal Flavor Violation at Large Tan(beta)

abstract:
  I review briefly the notion of minimal flavor violation and its application
to supersymmetry, with a special emphasis on a class of operators, so-called
Higgs penguins, which can generate new and interesting flavor signals at large
tan(beta).


title: Large-Q_T W-boson production at the Tevatron

abstract:
  The production of W bosons at large transverse momentum at the Tevatron is
dominated by soft-gluon corrections. In this talk we present a calculation of
these corrections at next-to-next-to-leading order. The corrections enhance the
transverse momentum distribution of the W while reducing the scale dependence.


title:
Higgs Phenomenology in the Two Higgs Doublet Model of type II. PhD
  Thesis

abstract:
  We study the Two Higgs Doublet Model of type II, set limits to the parameter
$\tan\beta$ as a function of the mass of the charged Higgs $m_{H}$, and find
interesting discovery channels in hadron colliders or muon colliders. We also
obtain the running coupling constants and discuss Grand Unification.
  A dissertation submitted to the University of San Francisco-Quito in partial
fulfillment of the requirements for the degree of Doctor of Phylosophy.


title:
NMSSM Higgs Detection: LHC, LC, $\gam C$ Collider Complementarity and
  Higgs-to-Higgs Decays

abstract:
  We discuss the importance of being able to detect Higgs-to-Higgs-pair decays
in the context of the Next-to-Minimal Supersymmetric Model (NMSSM) and
demonstrate the excellent capabilities of a photon collider for this purpose.


title: Sudakov logs and power corrections for selected event shapes

abstract:
  I summarize the results of recent studies analyzing perturbative and
nonperturbative effects of soft gluon radiation on the distributions of the
C-parameter and of the class of angularities, by means of dressed gluon
exponentiation.


title: Double Suppression of FCNCs in a Supersymmetric Model

abstract:
  A concrete model which can suppress FCNCs and CP violating phenomena is
suggested. It is an $S_3$ symmetric extension of the MSSM in extra dimensions,
where only SU(2) and SU(3) gauge multiplets are assumed to propagate in the
bulk. They are suppressed due to $S_3$ flavor symmetry at $M_{SUSY}$, and the
infrared attractive force of gauge interactions in extra dimensions are used to
suppress them at the compactification scale. We find that O(1) disorders of the
soft parameters are allowed at the cut-off scale to suppress sufficiently FCNCs
and CP violating phenomena.


title: Fermion Sector of Little Higgs

abstract:
  The little Higgs mechanism provides an alternative solution to the hierarchy
problem, arguably fitting better into the phenomenological hint of the "little
hierarchy" which may cause some fine-tuning for the case of supersymmetry. We
discuss an aspect of little Higgs physics lacking proper attention -- the
construction of an interesting and consistent chiral fermionic sector and its
phenomenological implications. At least for the kind of example models to be
discussed, the gauge and top sector structure of a model largely dictates,
through gauge anomaly cancellation conditions, a specific chiral fermion
spectrum. The spectrum has interesting, family non-universal, flavor structure.
The implications for flavor physics are specially interesting. We also add a
brief comment of little Higgs versus supersymmetry.


title:
A dynamical Origin of Little Higgs : - Hidden Local Symmetry in Large Nf
  QCD -

abstract:
  In this write-up I summarize the main points of our recent work, in which we
showed that the large flavor QCD is regarded as a dynamical origin of little
Higgs, and that the mass of such a little Higgs becomes actually very small.


title: The Quark-Gluon-Plasma Liquid

abstract:
  The quark-gluon plasma close to the critical temperature is a strongly
interacting system. Using strongly coupled, classical, non-relativistic plasmas
as an analogy, we argue that the quark-gluon plasma is in the liquid phase.
This allows to understand experimental observations in ultrarelativistic
heavy-ion collisions and to interpret lattice QCD results. It also supports the
indications of the presence of a strongly coupled QGP in ultrarelativistic
heavy-ion collisions.


title:
Higher Derivative Operators as loop counterterms in one-dimensional
  field theory orbifolds

abstract:
  Using a 5D N=1 supersymmetric toy-model compactified on S_1/(Z_2 x Z_2'),
with a ``brane-localised'' superpotential, it is shown that higher (dimension)
derivative operators are generated as one-loop counterterms to the (mass)^2 of
the zero-mode scalar field, to ensure the quantum consistency of the model.
Such operators are just a result of the compactification and integration of the
bulk modes. They are relevant for the UV momentum scale dependence of the
(mass)^2 of the zero-mode scalar field, regarded as a Higgs field in more
realistic models. While suppressed for a small compactification radius R, these
operators can affect the predictive power of models with a large value for R. A
general method is also provided for a careful evaluation of infinite sums of 4D
divergent loop-integrals (of Feynman diagrams) present in field theory
orbifolds. With minimal changes, this method can be applied to specific
orbifold models for a simple evaluation of their radiative corrections and the
overall divergences.


title: Advances in Generalized Parton Distribution Study

abstract:
  The basic properties of generalized parton distributions (GPDs) and some
recent applications of GPDs are discussed


title:
Tracing the Gauge Origin of Yukawa and Higgs Parameters Beyond the
  Standard Model

abstract:
  We discuss possible realizations of the hypothesis that all the fundamental
interactions of the elementary particles should be of gauge type, including the
Yukawa and Higgs ones. In the minimal SUSY extension of the standard model,
where the quartic Higgs couplings are ``gauged'' through the D-terms, it is
also possible to generate radiatively the Yukawa matrices for the light
generations, thus expressing them as functions of gauge couplings. The program
can also be applied to the SUSY LR model, where the possibility to induce
radiatively the mixing angles, can help to make viable the parity solution to
the strong CP problem. The superpotential of the model still includes some
non-gauge couplings, namely, the Yukawa for the third generation and the
trilinear terms involving the Higgs bi-doublet and two pairs of doublets.
Additional progress to relate these parameters to gauge couplings, can be made
by embedding the LR model within a SUSY model SU(4)_WxU(1)_{B-L} in five
dimensions, where the Higgs bi-doublet is identified as the extra component of
the 5D gauge field.


abstract:
  Effect of bound nucleon internal structure change on nuclear structure
functions is investigated based on local quark-hadron duality. The bound
nucleon structure functions calculated for charged-lepton and (anti)neutrino
scattering are all enhanced in symmetric nuclear matter at large Bjorken-$x$
($x \agt 0.85$) relative to those in a free nucleon. This implies that a part
of the enhancement observed in the nuclear structure function $F_2$ (in the
resonance region) at large Bjorken-$x$ (the EMC effect) is due to the effect of
the bound nucleon internal structure change. However, the $x$ dependence for
the charged-lepton and (anti)neutrino scattering is different. The former
[latter] is enhanced [quenched] in the region $0.8 \alt x \alt 0.9$ [$0.7 \alt
x \alt 0.85$] due to the difference of the contribution from axial vector form
factor. Because of these differences charge symmetry breaking in parton
distributions will be enhanced in nuclei.


title: Higgs bosons decay into bottom-strange in two Higgs Doublets Models

abstract:
  We analyze the decays $\{h^0,H^0,A^0\}\to \bar{s}b$ within two Higgs Doublet
Models with Natural Flavor Conservation (2HDM) type I and II. It is found that
the Higgs bosons decay into bottom-strange can lead to a branching ratio in the
range $10^{-5}\to 10^{-3}$ for small $\tan\beta \approx 0.1\to 0.5$ and rather
light charged Higgs in the 2HDM type I. When $\tan\beta \ga 1$, one can easily
reach a branching ratio of the order $10^{-5}$. In 2HDM type II, without
imposing $b\to s\gamma$ constraint, the situation is the same as in 2HDM type
I. If $b\to s\gamma$ constraint on charged Higgs mass ($M_{H\pm}\geq 350$ GeV)
is imposed, we obtain $Br(h^0 \to \bar{s}b)$ in the range $10^{-5}$--$10^{-6}$.
A comparison between the rates of $h^0\to \bar{s}b$ and $h^0\to \gamma \gamma$
is made. It is found that in the fermiophobic scenario, $h^0\to \gamma \gamma$
is still the dominant decay mode.


title: Neutralino dark matter in brane world cosmology

abstract:
  The thermal relic density of the neutralino dark matter in the brane world
cosmology is studied. Since the expansion law at a high energy regime in the
brane world cosmology is modified from the one in the standard cosmology, the
resultant relic density can be altered. It has been found that, if the five
dimensional Planck mass $M_5$ is lower than $10^4$ TeV, the brane world
cosmological effect is significant at the decoupling time and the resultant
relic density is enhanced. We calculate the neutralino relic density in the
Constrained Minimal Supersymmetric Standard Model (CMSSM) and show that the
allowed region is dramatically modified from the one in the standard cosmology
and eventually disappears as $M_5$ is decreasing. We also find a new lower
bound on $M_5 \gtrsim 600$ TeV based on the neutralino dark matter hypothesis,
namely the lower bound in order for the allowed region of the neutralino dark
matter to exist.


title: The QCD analytic effective charge and its dependence on the pion mass

abstract:
  A new model for the QCD analytic running coupling, which incorporates the
effects due to the $\pi$ meson mass, is proposed. The properties of this
invariant charge in spacelike and timelike regions are examined. Its main
distinctive features are a finite infrared limiting value, which depends on the
pion mass, and the "plateau-like" behavior in the deep infrared domain of the
timelike region.


title: Implications of Charmless B Decays with Large Direct CP Violation

abstract:
  Based on the most recent data in charmless B decays including the very
recently reported large direct CP violations, it is shown that the weak phase
gamma can well be extracted without two-fold ambiguity even only from two decay
modes pi^+pi^- and pi^+K^-, and its value is remarkably consistent with the
global standard model fit at a compatible accuracy. A fit to all the pi pi, pi
K data favor both large electroweak penguin and color-suppressed tree amplitude
with large strong phases. It is demonstrated that the inclusion of small
SU(3)symmetry breaking effects of strong phases and the inelastic rescattering
effects can well improve the consistency of the data, while both effects may
not be sufficient to arrive at a small electroweak penguin amplitude in the
standard model. It is of interest to notice that large or small electroweak
penguin amplitude becomes a testable prediction as they lead to significantly
different predictions for the direct CP violations for pi^0 pi^0, pi^0 K^0
modes. Clearly, precise measurements on charmless B decays will provide a
window for probing new physics.


title: Scalar form factors of light mesons

abstract:
  The scalar radius of the pion plays an important role in CHPT, because it is
related to one of the basic effective coupling constants, viz. the one which
controls the quark mass dependence of F_pi at one loop. In a recent paper,
Yndurain derives a {\it robust lower bound} for this radius, which disagrees
with earlier determinations. We show that such a bound does not exist: the
"derivation" relies on an incorrect claim. Moreover, we discuss the physics of
the form factors associated with the operators \ubar u, \dbar d and \sbar s and
show that their structure in the vicinity of the K \Kbar threshold is quite
different. Finally, we draw attention to the fact that the new data on the
slope of the scalar K_l3 form factor confirm a recent, remarkably sharp
theoretical prediction.


title: Topcolor breaking through boundary conditions

abstract:
  The nontrivial boundary conditions (BC's) for the Topcolor breaking are
investigated in the context of the TeV-scale extra dimension scenario. In the
gauge symmetry breaking mechanism via the BC's we do not need to incorporate a
dynamical mechanism for the Topcolor breaking into the model. Moreover, the
Topcolor breaking can be realized without introducing explicitly a (composite)
scalar field. We present a six dimensional model where the top and bottom
quarks in the bulk have the Topcolor charge while the other quarks in the bulk
do not. We also put the electroweak gauge interaction in the six dimensional
bulk. The bottom quark condensation is naturally suppressed owing to the
power-like running of the bulk U(1)_Y interaction, so that only the top
condensation is expected to take place. We explore such a possibility based on
the ladder Schwinger-Dyson equation and show the cutoff to make the model
viable.


title: Global Analysis of Neutrino Oscillation

abstract:
  We present the constraints on neutrino oscillation parameters $\Delta
m^2_{\odot}$ and $\theta_{\odot}$ governing the solar neutrino oscillations
from two generation analysis of solar and KamLAND data. We include the latest
766.3 ton year KamLAND data in our analysis. We also present the allowed values
of parameters $\Delta m^2_{atm}$ and $\sin^2\theta_{atm}$ from two generation
oscillation analysis of SuperKamiokande atmospheric and K2K data. For both
cases we discuss the precision achieved in the present set of experiments and
also how the precision can be improved in future. We also obtain the bounds on
$\theta_{13}$ from three generation analysis of global oscillation data. We
emphasise on the roles played by different data sets in constraining the
allowed parameter ranges.


title: Working Group Report: Neutrino and Astroparticle Physics

abstract:
  This is the report of neutrino and astroparticle physics working group at
WHEPP-8. We present the discussions carried out during the workshop on selected
topics in the above fields and also indicate progress made subsequently. The
neutrino physics subgroup studied the possibilites of constraining neutrino
masses, mixing and CPT violation in lepton sector from future experiments.
Neutrino mass models in the context of abelian horizontal symmetries, warped
extra dimensions and in presence of triplet Higgs were studied. Effect of
threshold corrections on radiative magnification of mixing angles was
investigated. The astroparticle physics subgroup focused on how various
particle physics inputs affect the CMBR fluctuation spectrum, and on brane
cosmology. This report also contains an introduction on how to use the publicly
available code CMBFAST to calculate the CMBR fluctuations.


title: Hybrid Inflation and the Moduli Problem

abstract:
  We revisit some questions in supersymmetric hybrid inflation (SHI). We
analyze the amount of fine tuning required in various models, the problem of
decay at the end of inflation and the generation of baryons after inflation. We
find that the most natural setting for HI is in supersymmetric models with
non-renormalizable couplings. Furthermore, we argue that almost inevitably, one
of the fields involved is a modulus, with Planck scale variation. The resulting
moduli problem can be solved in two ways: either by a massive modulus (which
requires some fine tuning), or an enhanced symmetry point, in which the moduli
becomes strongly coupled to the Standard Model. Various possibilities for
baryon production are discussed.


title:
Implications of Constraints on Mass Parameters in the Higgs Sector of
  the Nonlinear Supersymmetric SU(5) Model

abstract:
  The Higgs sector of the minimal nonlinear supersymmetric SU(5) model contains
three mass parameters. Although these mass parameters are essentially free at
the electroweak scale, they might have particular values if they evolve from a
particular constraints at the GUT scale through the RG equations. By assuming a
number of simple constraints on these mass parameters at the GUT scale, we
obtain their values at the electroweak scale through the RG equations in order
to investigate the phenomenological implications. Some of them are found to be
consistent with the present experimental data.


title: Tauonic B decays in the Minimal Supersymmetric Standard Model

abstract:
  We study new physics effects on B decay processes including a final $\tau$
particle, namely $B \to D \tau \nu$ and $B \to \tau \nu$. An important feature
of these processes is that a charged Higgs boson can contribute to the decay
amplitude at the tree level in models such as Two Higgs Doublet Model and the
Minimal Supersymmetric Standard Model (MSSM). We derive a resummed effective
Lagrangian for charged-Higgs mediated interactions in the MSSM with the Minimal
Flavor Violation. Including supersymmetric (SUSY) loop corrections for
down-type-quark and charged-lepton Yukawa couplings, we calculate the branching
ratios of the $B \to D \tau \nu$ and $B \to \tau \nu$ processes. We find that
SUSY correction due to gluino-sbottom diagrams can change the Higgs exchange
contribution by $\pm50$%, whereas stau-neutralino diagrams can make corrections
up to 20%. We also discuss relationship between SUSY corrections in the tauonic
decays and flavor changing neutral current processes such as $B_s \to
\mu^+\mu^-$ and $b \to s \gamma$.


title:
Implications of Running Neutrino Parameters for Leptogenesis and for
  Testing Model Predictions

abstract:
  The running of neutrino parameters in see-saw models and its implications for
leptogenesis and for testing predictions of mass models with future precision
experiments are discussed using analytical approximations as well as numerical
results.


title: Theory of Neutrino Oscillations

abstract:
  We present a derivation of the flavor neutrino states which describe
neutrinos produced or detected in charged-current weak-interaction processes,
including those operating in neutrino oscillation experiments. We also present
a covariant derivation of the probability of neutrino oscillations which is
consistent with the fact that flavor is Lorentz-invariant. Finally, we clarify
the negative answers to three commonly asked questions: "Do charged leptons
oscillate?"; "Is the standard phase wrong by a factor of 2?" "Are flavor
neutrinos described by Fock states?".


title:
Renormalization of the neutrino mass operators in the
  multi-Higgs-doublet Standard Model

abstract:
  We derive the renormalization group equations (RGE) for the flavour coupling
matrices of the effective dimension-five operators which yield Majorana
neutrino masses in the multi-Higgs-doublet Standard Model; in particular, we
consider the case where two different scalar doublets occur in those operators.
We also write down the RGE for the scalar-potential quartic couplings and for
the Yukawa couplings of that model, in the absence of quarks. As an application
of the RGE, we consider two models which, based on a mu-tau interchange
symmetry, predict maximal atmospheric neutrino mixing, together with U_{e3} =
0, at the seesaw scale. We estimate the change of those predictions due to the
evolution of the coupling matrices of the effective mass operators from the
seesaw scale down to the electroweak scale. We derive an upper bound on that
change, thereby finding that the radiative corrections to those predictions are
in general negligible.


title: Aspects of Split Supersymmetry

abstract:
  We explore some fundamental differences in the phenomenology, cosmology and
model building of Split Supersymmetry compared with traditional low-scale
supersymmetry. We show how the mass spectrum of Split Supersymmetry naturally
emerges from theories where the dominant source of supersymmetry breaking
preserves an $R$ symmetry, characterize the class of theories where the
unavoidable $R$-breaking by gravity can be neglected, and point out a new
possibility, where supersymmetry breaking is directly communicated at tree
level to the visible sector via renormalizable interactions. Next, we discuss
possible low-energy signals for Split Supersymmetry. The absence of new light
scalars removes all the phenomenological difficulties of low-energy
supersymmetry, associated with one-loop flavor and CP violating effects.
However, the electric dipole moments of leptons and quarks do arise at two
loops, and are automatically at the level of present limits with no need for
small phases, making them accessible to several ongoing new-generation
experiments. We also study proton decay in the context of Split Supersymmetry,
and point out scenarios where the dimension-six induced decays may be
observable. Finally, we show that the novel spectrum of Split Supersymmetry
opens up new possibilities for the generation of dark matter, as the decays of
ultraheavy gravitinos in the early universe typically increase the abundance of
the lightest neutralino above its usual freeze-out value. This allows for
lighter gauginos and Higgsinos, more accessible both to the LHC and to
dark-matter detection experiments.


title: Introduction to Nonequilibrium Quantum Field Theory

abstract:
  There has been substantial progress in recent years in the quantitative
understanding of the nonequilibrium time evolution of quantum fields. Important
topical applications, in particular in high energy particle physics and
cosmology, involve dynamics of quantum fields far away from the ground state or
thermal equilibrium. In these cases, standard approaches based on small
deviations from equilibrium, or on a sufficient homogeneity in time underlying
kinetic descriptions, are not applicable. A particular challenge is to connect
the far-from-equilibrium dynamics at early times with the approach to thermal
equilibrium at late times. Understanding the ``link'' between the early- and
the late-time behavior of quantum fields is crucial for a wide range of
phenomena. For the first time questions such as the explosive particle
production at the end of the inflationary universe, including the subsequent
process of thermalization, can be addressed in quantum field theory from first
principles. The progress in this field is based on efficient functional
integral techniques, so-called n-particle irreducible effective actions, for
which powerful nonperturbative approximation schemes are available. Here we
give an introduction to these techniques and show how they can be applied in
practice. Though we focus on particle physics and cosmology applications, we
emphasize that these techniques can be equally applied to other nonequilibrium
phenomena in complex many body systems.

categories: hep-ph astro-ph hep-lat hep-th nucl-th quant-ph


title: Recoil and Power Corrections in High-x_T Direct-Photon Production

abstract:
  We study a class of nonperturbative corrections to single-inclusive photon
cross sections at measured transverse momentum p_T, in the large-x_T limit. We
develop an extension of the joint (threshold and transverse momentum)
resummation formalism, appropriate for large x_T, in which there are no
kinematic singularities associated with recoil, and for which matching to fixed
order and to threshold resummation at next-to-leading logarithm (NLL) is
straightforward. Beyond NLL, we find contributions that can be attributed to
recoil from initial state radiation. Associated power corrections occur as
inverse powers of p_T^2 and are identified from the infrared structure of
integrals over the running coupling. They have significant energy dependence
and decrease from typical fixed-target to collider energies. Energy
conservation, which is incorporated into joint resummation, moderates the
effects of perturbative recoil and power corrections for large x_T.


title: Light neutrino and heavy particle exchange in $\nbb$-decay

abstract:
  A simple and precise method is presented to compare contributions to
neutrinoless double-beta decay ($\nbb$-decay) from heavy particle exchange and
light Majorana neutrino exchange. This procedure makes no assumptions about the
momentum transfer between the two nucleons involved in the $\nbb$-decay
process. It is shown that for a general particle physics model, the
characteristic $\nbb$-decay scale $> 4.4$ TeV when all the coupling constants
are assumed to be natural and of ${\cal{O}}(1)$.


title: P-Wave Charm Mesons as a Window to the D_{sJ} States

abstract:
  In my talk I discussed the properties of the newly discovered D_{sJ}^*(2317),
D_{sJ}(2460), X(3872), and SELEX D^*_{sJ}(2632) states and suggested
experimental measurements that can shed light on them. In this writeup I
concentrate on an important facet of understanding the D_{sJ} states, the
properties of the closely related D_0^* and D_1' states. These states are well
described as the broad, j=1/2 non-strange charmed P-wave mesons.


title:
Large-scale magnetic fields from dilaton inflation in noncommutative
  spacetime

abstract:
  The generation of large-scale magnetic fields is studied in dilaton
electromagnetism in noncommutative inflationary cosmology taking into account
the effects of the spacetime uncertainty principle motivated by string theory.
We show that it is possible to generate large-scale magnetic fields with
sufficient strength to account for the observed fields in galaxies and clusters
of galaxies through only adiabatic compression without dynamo amplification
mechanism in models of power-law inflation based on spacetime noncommutativity
without introducing a huge hierarchy between the dilaton's potential and its
coupling to the electromagnetic fields.


title: Little Higgs Model Completed with a Chiral Fermionic Sector

abstract:
  The implementation of the little Higgs mechanism to solve the hierarchy
problem provides an interesting guiding principle to build particle physics
models beyond the electroweak scale. Most model building works, however, pay
not much attention to the fermionic sector. Through a case example, we
illustrate how a complete and consistent fermionic sector of the TeV effective
field theory may actually be largely dictated by the gauge structure of the
model. The completed fermionic sector has specific flavor physics structure,
and many phenomenological constraints on the model can thus be obtained beyond
gauge, Higgs, and top physics. We take a first look on some of the quark sector
constraints.


title:
Flavor and CP violation in the SUSY SU(5) GUT with the right-handed
  neutrinos

abstract:
  The neutrino flavor mixing may induce rich flavor and CP violating phenomena
in the SUSY GUTs. In this paper we discuss the hadronic EDMs and the
correlation among low-energy processes induced by the mixings between second
and third generations in the SUSY SU(5) GUT with the right-handed neutrinos.


title:
Probing Lepton Flavor Violation Signal Induced by R-violating Minimal
  Supersymmetric Standard Model at a Linear Collider

abstract:
  The lepton-flavor violation (LFV) effect at an $e^+e^-$ linear collider (LC),
in the frame of R-parity violating minimal supersymmetric standard model is
studied. We take the R-parity violating processes $e^+e^-\to e^{\mp}\mu^{\pm}$
as signal, and define the summation of the two processes as ``experiment''
observable. We find that the cross-section summation can reach
$\cal{O}$$(10^1)fb$ in the parameter space without sneutrino resonance
effect($\sqrt{s} \sim m_{\tilde{\nu}}$). The summation treatment manifests
uniform differential distribution on $\cos\theta$, where $\theta$ denotes the
polar angles of both outgoing $e^+/e^-$ respectively to incoming electron beam
in two signal processes. The uniform feature together with $e\mu$ collinearity
would help to reduce the SM background dramatically. Consequently we conclude
that at a $500 GeV$ LC with $480 fb^{-1}$ annual luminosity, it's either
possible to detect the distinctive R-violating LFV $e\mu$ signal, or exclude
sneutrino to $m_{\tilde{\nu}}>1.1 TeV$ at 95% CL in the machine's biennial
runtime interval.


title: R-parity violating sneutrino decays

abstract:
  R-parity can be violated through either bilinear and/or trilinear terms in
the superpotential. The decay properties of sneutrinos can be used to obtain
information about the relative importance of these couplings provided
sneutrinos are the lightest supersymmetric particles. We show that in some
specific scenarios it is even possible to decide whether bilinear or trilinear
terms give the dominant contribution to the neutrino mass matrix.


title: Effects of R-parity Violation on the Charged Higgs Boson Decays

abstract:
  We calculate one-loop R-parity-violating couplings corrections to the
processes $H^-\to \tau\bar{\nu_\tau}$ and $H^-\to b\bar{t}$. We find that the
corrections to the $H^-\to \tau\bar{\nu_\tau}$ decay mode are generally about
0.1%, and can be negligible. But the corrections to the $H^-\to b\bar{t}$ decay
mode can reach a few percent for the favored parameters.


title:
Neutron electric dipole moment and flavor changing interactions in
  supersymmetric theories

abstract:
  Supersymmetric contributions to the neutron electric dipole moment (EDM) are
studied taking account of the flavor changing interactions. We found that the
gluino contribution is sensitive to the flavor changing interaction.
Enhancement of neutron EDM via flavor mixing effects is possible when the
squark mass difference between the different generations is sizable. As an
example, the results of the SUSY SU(5) GUT with right-handed neutrinos are
briefly discussed.


title: Update on multiparticle effects in Bose-Einstein correlations

abstract:
  Multiparticle effects in Bose-Einstein correlations are reviewed. It is shown
that for a broad class of models they can be ignored in the low density limit,
but often are significant (typically at the 10% level) for realistic denisties.


title:
Recent Measurements of CP Asymmetries of B \to \phi K^0 and B \to \eta'
  K_S at B-factories Suggest New CP Violation in Left-Handed Squark Mixing

abstract:
  Recent results on the mixing-induced CP asymmetries of B \to \phi K^0 and B
\to \eta' K_S measured at B-factories appear to indicate discrepancies from the
Standard Model expectation. Explanation of this possible anomaly is given in
the context of supersymmetric extension of the Standard Model. It is shown that
the present data, if the average of two experiments is taken, implies
additional CP violation appearing in the generation mixing of left-handed
squarks rather than that of right-handed ones. This explanation is argued to
disfavor many mediation mechanisms of supersymmetry breaking, including minimal
supergravity, because renormalization group effects via Yukawa interaction are
unlikely to generate the desired mass mixing.


title:
Direct calculation of the K-matrix for pion electro-production in the
  Delta channel

abstract:
  We present a method to calculate directly the K-matrices for the pion
electro-production processes in the framework of chiral quark models which
allows for a clean separation of the resonant amplitudes from the background.
The method is applied to the calculation of the multipole amplitudes M_{1+},
E_{1+}, and S_{1+} in the Delta channel within the Cloudy Bag Model. A good
overall description is found in a broad energy range.


title:
Logarithmic electroweak corrections to gauge-boson pair production at
  the LHC

abstract:
  We have studied the effects of the complete logarithmic electroweak O(alpha)
corrections on the production of vector-boson pairs WZ, ZZ, and WW at the LHC.
These corrections are implemented into a Monte Carlo program for pp -> 4f
(+\gamma) with final states involving four or two leptons using the double-pole
approximation. We numerically investigate purely leptonic final states and find
that electroweak corrections lower the predictions by 5-30% in the physically
interesting region of large di-boson invariant mass and large angle of the
produced vector bosons.


title: A study of late decaying charged particles at future colliders

abstract:
  In models where the gravitino is the lightest supersymmetric particle (LSP),
the next-to-lightest supersymmetric particle (NLSP) is long-lived. We consider
an important charged NLSP candidate, the scalar tau $\tilde{\tau}$. Slow
charged NLSPs may be produced at future colliders and they may be stopped in a
massive stopper which simultaneously serves as a detector for the NLSP and its
decay products. We found the number of events at a 1 kton to O(10) kton
detector could be significant enough to study the NLSP decays with lifetime
shorter than $10^{10}$ sec at the LHC. The performance of existing 1 kton
detectors may be good enough to do such studies at the LHC, if they can be
placed close to the ATLAS/CMS detectors. At a future $e^- e^-$ collider, scalar
electrons $\tilde{e}^-$s are copiously produced. Slow NLSPs may be produced
from the $\tilde{e}^-$ decay. The number of stopped NLSPs at a future linear
collider could be large enough to study rare decay modes of the NLSP.


title: Neutrino-nucleus interactions: open questions and future projects

abstract:
  We discuss various issues concerning the interactions of nuclei with
neutrinos of low impinging energies (i.e. having several tens of MeV to a few
hundred MeV) of interest for particle physics, nuclear physics and
astrophysics. We focus, in particular, on open questions as well as possible
strategies to obtain more experimental information. The option of a low-energy
beta-beam facility is extensively discussed. We also mention its potential
concerning the neutrino magnetic moment.


title: Mass Operator and Gauge Field Theory with Five-variable Field Functions

abstract:
  To investigate the mass generating problem without Higgs mechanism we present
a model in which a new scalar gauge coupling is naturally introduced. Because
of the existence of production and annihilation for particles in quantum field
theory, we extend the number of independent variables from conventional four
space-time dimensions to five ones in order to describe all degrees of freedom
for field functions while the conventional space-time is still retained to be
the background. The potential fifth variable is nothing but the proper time of
particles. In response, a mass operator $(\hat{m}=-i\hbar
\frac{\partial}{\partial\tau})$ should be introduced. After that, the
lagrangian for free fermion fields in terms of five independent variables and
mass operator is written down. By applying the gauge principle, three kinds of
vector gauge couplings and one kind of scalar gauge coupling are naturally
introduced. In the current scenario, the mass spectrum for all fundamental
particles is accounted for in principle by solving the eigenvalue of mass
operator under the function of all kinds of interactions. Moreover, there no
any auxiliary mechanism including spontaneous symmetry breaking get involved in
the model. Therefore, traditional problems in the standard model such as the
vacuum energy problem are removed from our model, as well as the hierarchy
problem on the mass spectrum for fundamental particles.


title: Deformed Instantons

abstract:
  In this talk, instantons are discussed in the presence of Lorentz violation.
Conventional topological arguments are applied to classify the modified
solutions to the Yang-Mills equations according to the topological charge.
Explicit perturbations to the instantons are calculated in detail for the case
of unit topological charge.


title: Nonrelativisitic Ideal Gasses and Lorentz Violations

abstract:
  We develop statistical mechanics for a nonrelativisitic ideal gas in the
presence of Lorentz violating background fields. The analysis is performed
using the Standard-Model Extension (SME). We derive the corresponding laws of
thermodynamics and find that, to lowest order in Lorentz violation, the scalar
thermodynamic variables are corrected by a rotationally invariant combination
of the Lorentz terms which can be interpreted in terms of a (frame dependent)
effective mass. We find that spin couplings can induce a temperature
independent polarization in the gas that is not present in the conventional
case.


title: Instanton-induced Azimuthal Spin Asymmetry in Deep Inelastic Scattering

abstract:
  It is by now well understood that spin asymmetry in deep inelastic scattering
(DIS) can appear if two things are both present: (i) a chirality flip of the
struck quark; (ii) a nonzero T-odd phase due to its final state interaction. So
far (i) was attributed to a new structure/wave function of the nucleon and (ii)
to some gluon exchanges. We propose a new mechanism utilizing strong vacuum
fluctuations of the gluon field described semiclasically by instantons, and
show that both (i) and (ii) are present. The magnitude of the effect is
estimated using known parameters of the instanton ensemble in the QCD vacuum
and known structure and fragmentation functions, without any new free
parameters. The result agrees in sign and (roughly) in magnitude with the
available data on single particle inclusive DIS. Furthermore, our predictions
uniquely relate effects for longitudinally and transversely polarized targets.


title: An Allgravity as a Grand Unification of Forces

abstract:
  To each type of Coulomb (Newton) charge corresponds a kind of Coulomb
(Newton) mass. Such a mass-charge duality explains the availability in a
neutrino of the united rest mass and charge equal to all its mass and charge
consisting of the electric, weak, strong and the range of other the innate
components. A neutrino itself, similarly to all other the quantum matter with
Coulomb (Newton) mass and charge, says herewith in favor of a kind of
mononeutrino with magnetocoulomb (magnetonewton) rest mass and charge equal to
all its mass and charge including the magnetoelectric, magnetoweak,
magnetostrong and the range of other the innate parts. We discuss a theory in
which symmetry between electricity and magnetism comes forward at the level of
a grand unification mathematical logic as the defined symmetry between gravity
and magnetogravity within the same allgravity responsible for all that in a
curved space-time. This allgravity relates graviton and monograviton as a
consequence of force unification forming one single allgraviton. Thereby, it
establishes a set of forces and a role in their formation of mass, charge and
thus directly reveals so far unknown most diverse properties of a curved space.