title: Elastic scattering and the proton form factor

abstract:
  We compute the differential and the total cross sections for $pp$ scattering
using the QCD pomeron model proposed by Landshoff and Nachtmann. This model is
quite dependent on the experimental electromagnetic form factor, and it is not
totally clear why this form factor gives good results even at moderate
transferred momentum. We exchange the eletromagnetic form factor by the
asymptotic QCD proton form factor determined by Brodsky and Lepage (BL) plus a
prescription for its low energy behavior dictated by the existence of a
dynamically generated gluon mass. We fit the data with this QCD inspired form
factor and a value for the dynamical gluon mass consistent with the ones
determined in the literature. Our results also provide a new determination of
the proton wave function at the origin, which appears in the BL form factor.


title:
Fragmentation Functions for K0short and Lambda with Complete Quark
  Flavour Separation

abstract:
  We present new sets of next-to-leading order fragmentation functions for the
production of K0short and Lambda particles from the gluon and from each of the
quarks, obtained by fitting to all relevant data sets from e+e- annihilation.
The individual light quark flavour fragmentation functions are constrained
phenomenologically for the first time by including in the data the light quark
tagging probabilities measured by the OPAL Collaboration.


title:
Indirect Detection of Kaluza-Klein Dark Matter from Latticized Universal
  Dimensions

abstract:
  We consider Kaluza-Klein dark matter from latticized universal dimensions. We
motivate and investigate two different lattice models, where the models differ
in the choice of boundary conditions. The models reproduce relevant features of
the continuum model for Kaluza-Klein dark matter. For the model with simple
boundary conditions, this is the case even for a model with only a few lattice
sites. We study the effects of the latticization on the differential flux of
positrons from Kaluza-Klein dark matter annihilation in the galactic halo. We
find that for different choices of the compactification radius, the
differential positron flux rapidly converges to the continuum model results as
a function of the number of lattice sites. In addition, we consider the
prospects for upcoming space-based experiments such as PAMELA and AMS-02 to
probe the latticization effect.


title: Neutrino Masses, Mixing and Oscillations

abstract:
  Basics of neutrino oscillations is discussed. Importance of time-energy
uncertainty relation is stressed. Neutrino oscillations in the leading
approximation and evidence for neutrino oscillations are briefly summarized.


title: Particle production and saturation at HERA

abstract:
  Perturbative QCD in the high-energy limit describes the evolution of
scattering amplitudes with increasing energy towards and into the so-called
saturation regime. Comparisons of the predictions with experimental data for a
number of observables led to significant progress and understanding. We discuss
the case of particle-production cross-sections measured at HERA and argue that
these measurements have the potential to provide evidence for the saturation
regime of QCD.


title: Hyperon Semileptonic Decays and CKM Unitarity

abstract:
  We perform a new numerical analysis of hyperon semileptonic decays
emphasizing the systematic uncertainties. The poor understanding of SU(3)
symmetry breaking effects at second order in the vector form factor translates
into a large error of |V(us)|. Using our determination |V(us)| = 0.226 +/-
0.005 together with those coming from other sources we test the unitarity of
the CKM matrix.


title:
Lagrangian perturbations at order 1/m$_{\bf Q}$ and the non-forward
  amplitude in Heavy Quark Effective Theory

abstract:
  We pursue the program of the study of the non-forward amplitude in HQET. We
obtain new sum rules involving the elastic subleading form factors $\chi_i(w)$
$(i = 1,2, 3)$ at order $1/m_Q$ that originate from the ${\cal L}_{kin}$ and
${\cal L}_{mag}$ perturbations of the Lagrangian. To obtain these sum rules we
use two methods. On the one hand we start simply from the definition of these
subleading form factors and, on the other hand, we use the Operator Product
Expansion. To the sum rules contribute only the same intermediate states $
(j^P, J^P) = ({1 \over 2}^-, 1^-), ({3\over 2}^-, 1^-)$ that enter in the
$1/m_Q^2$ corrections of the axial form factor $h_{A_1}(w)$ at zero recoil.
This allows to obtain a lower bound on $- \delta_{1/m^2}^{(A_1)}$ in terms of
the $\chi_i(w)$ and the shape of the elastic IW function $\xi (w)$. We find
also lower bounds on the $1/m_Q^2$ correction to the form factors $h_+(w)$ and
$h_1(w)$ at zero recoil. An important theoretical implication is that $\chi
'_1(1)$, $\chi_2(1)$ and $\chi '_3(1)$ ($\chi_1(1) = \chi_3(1) = 0$ from Luke
theorem) must vanish when the slope and the curvature attain their lowest
values $\rho^2 \to {3 \over 4}$, $\sigma^2 \to {15 \over 16}$. We discuss
possible implications on the precise determination of $|V_{cb}|$.


title:
On the Scale Variation of the Total Cross Section for Higgs Production
  at the LHC and at the Tevatron

abstract:
  We present a detailed study of the total $p p$ cross section for scalar Higgs
production to next-to-next-to leading order in $\alpha_s$ at LHC energies, and
of the $p\bar p$ cross section at the Tevatron, combining an implementation of
the solutions of the parton evolution equations at the 3-loop order with the
corresponding hard scatterings, evaluated at the same perturbative order. Our
solutions of the DGLAP equations are implemented directly in $x$-space and
allow the study of the dependence of the results on the factorization ($\mu_F$)
and renormalization scales $(\mu_R)$ typical of a given process, together with
the stability of the perturbative expansion. The input sets for the parton
evolutions are those given by Martin, Roberts, Stirling and Thorne and by
Alekhin. Results for K-factors are also presented. The NNLO corrections can be
quite sizeable at typical collider energies. The stability region of the
perturbative expansion is found when $\mu_R > m_H\sim\mu_F$.


title: The tensor force in Heavy Quark Effective Theory

abstract:
  We extend the formalism of Leibovich, Ligeti, Stewart and Wise in the 1/m_Q
expansion of Heavy Quark Effective Theory for the B semileptonic decays into
excited D[(3/2)^+] mesons to the opposite parity states D[(3/2)^-]. For
D[(3/2)^+] the 1/m_Q current perturbation dominates over the leading term at
zero recoil, while for D[(3/2)^-] the 1/m_Q perturbation due to L_mag dominates
also at zero recoil. We show that the corresponding 1/m_Q magnetic coupling is
proportional to the mixing between the states D[(3/2)^-] and D[(1/2)^-] induced
by the tensor force. We point out some subtleties that appear in this respect
in HQET.


title: Anomaly-Free Sets of Fermions

abstract:
  We present new techniques for finding anomaly-free sets of fermions. Although
the anomaly cancellation conditions typically include cubic equations with
integer variables that cannot be solved in general, we prove by construction
that any chiral set of fermions can be embedded in a larger set of fermions
which is chiral and anomaly-free. Applying these techniques to extensions of
the Standard Model, we find anomaly-free models that have arbitrary quark and
lepton charges under an additional U(1) gauge group.


title:
Determining the Neutrino Mass Hierarchy and CP Violation in NOvA with a
  Second Off-Axis Detector

abstract:
  We consider a Super-NOvA-like experimental configuration based on the use of
two detectors in a long-baseline experiment as NOvA. We take the far detector
as in the present NOvA proposal and add a second detector at a shorter
baseline. The location of the second off-axis detector is chosen such that the
ratio L/E is the same for both detectors, being L the baseline and E the
neutrino energy. We consider liquid argon and water-Cherenkov techniques for
the second off-axis detector and study, for different experimental setups, the
detector mass required for the determination of the neutrino mass hierarchy,
for different values of theta13. We also study the capabilities of such an
experimental setup for determining CP violation in the neutrino sector. Our
results show that by adding a second off-axis detector a remarkable enhancement
on the capabilities of the current NOvA experiment could be achieved.


title: Collider Bounds on Pseudoscalars Coupling to Gauge Bosons

abstract:
  We bound the coupling of pseudo-scalar particles to Tr G^G_{QCD} using (the
lack of) monojet plus missing E_T events at the Tevatron, and estimate the
bounds obtainable from LHC. In addition, we revisit the bounds on the coupling
to F^F_{EM} from e^+e^- collider events with single photon and missing E_T
final states. This is especially interesting in light of the recent
experimental results from the PVLAS collaboration, which we believe can be
tested by data which will be available in the near future.


title: Electroweak Corrections for the Study of the Higgs Potential at the LC

abstract:
  The full electroweak radiative correction is calculated for the process ee-->
nunubarHH which is a window for the study of the Higgs potential at the future
linear collider. The calculation is done by using GRACE, the automated system
for the calculation of Feynman diagrams. The magnitude of the weak correction
in the G-mu scheme is small in the high energy region where this process
dominates over the ZHH production.


title:
Factorization Algorithm for Parton Showers beyond the Leading
  Logarithmic Order of QCD

abstract:
  A factorization algorithm for a patron shower model based on the evolution of
momentum distributions proposed in a previous work is studied. The scaling
violation of initial state parton distributions is generated using parton
showers to an accuracy of the next-to-leading logarithmic (NLL) order of
quantum chromodynamics (QCD) using the information from only splitting
functions and initial parton distributions at some fixed low energy. In the
algorithm proposed in this paper, the total momentum of the initial state
partons is conserved in any factorization scheme for mass singularities. As an
example, the scaling violation of the parton distributions and the transverse
momentum distributions due to initial state parton radiation are calculated
with the jet calculs scheme.


title: High Density Preheating Effects on Q-ball Decays and MSSM Inflation

abstract:
  Non-perturbative preheating decay of post-inflationary condensates often
results in a high density, low momenta, non-thermal gas. In the case where the
non-perturbative classical evolution also leads to Q-balls, this effect shields
them from instant dissociation, and may radically change the thermal history of
the universe. For example, in a large class of inflationary scenarios,
motivated by the MSSM and its embedding in string theory, the reheat
temperature changes by a multiplicative factor of $10^{12}$.


title: Light-front wavefunction dependence of the quark recombination

abstract:
  We present an extension of the recombination formalism to analyze the effects
from the variation of the hadron wavefunctions. The hadron spectra are
sensitive to the shape of the wavefunctions. However, when we fit the
wavefunction parameters to the physical observables, such as the average charge
radius, the final spectra are very similar each other. We discuss our numerical
results in comparison with the published PHENIX and STAR data at RHIC. In the
hadron spectra, the recombination of thermal partons dominates at intermediate
transverse momentum ($P_{T}$ = 2 $\sim$ 5 GeV), and the fragmentation dominates
at high $P_{T}$ ($>$ 5 GeV). The yield ratios and the nuclear modification
factors for various hadron species are also estimated and compared to the
experimental data. We present a new prediction on $\bar{p}/p$ and $K^{-}/K^{+}$
ratios, including the jet quenching effects to the fragmentation mechanism.


title: The influence of flow on the jet quenching power in heavy-ion collisions

abstract:
  The flow pattern and evolution of the medium created in ultrarelativistic
heavy ion collisions can have significant influence on the energy loss of hard
partons traversing the medium. We demonstrate that within a range of
assumptions for longitudinal and transverse flow which are all compatible with
the measured hadronic single particle distributions, the quenching power of the
medium can vary within almost a factor five. Thus, the choice of the medium
evolution is one of the biggest uncertainties in jet quenching calculations and
needs to be addressed with some care.


title: Leading twist moments of the neutron structure function F2n

abstract:
  We perform a global analysis of neutron F2n structure function data, obtained
by combining proton and deuteron measurements over a large range of kinematics.
  From these data the lowest moments (n <= 10) of the leading twist neutron F2n
structure function are extracted. Particular attention is paid to nuclear
effects in the deuteron, which become increasingly important for the higher
moments. Our results for the nonsinglet, isovector (p - n) combination of the
leading twist moments are used to test recent lattice simulations. We also
determine the lowest few moments of the higher twist contributions, and find
these to be approximately isospin independent, suggesting the possible
dominance of ud correlations over uu and dd in the nucleon.


title:
Relations for Direct CP asymmetries \\in $B\to \rm PP$ and $B\to \rm PV$
  decays

abstract:
  The presence of additional strong phase from power corrections and other
chirally enhanced terms makes it more difficult to predict direct CP
asymmetries in two-body charmless B decays. In this talk, I would like to
report on a recent work on QCD Factorisation and Power Corrections in Charmless
B Decays. Using the measured branching ratios for $B\to \rm PV$, it is shown
that power corrections in charmless B decays are probably large, at least for
penguin dominated $\rm PV$ channels. Since the tree-penguin interference
responsible for direct CP asymmetries in two-body charmless B decays are
related by CKM factors and SU(3) symmetry, we find that, if power corrections
other than the chirally enhanced power corrections and annihilation topology
were negligible, QCD Factorisation would predict the direct CP asymmetry of $B
\to \pi^+ \pi^-$ to be about 3 times larger than that of $B \to \pi^\pm K^\mp$,
with opposite sign, in agreement with the latest measurement from Belle.
Similar relations are also given for direct CP asymmetries in $B\to\rm PV$ .


title: Multihadron production features in different reactions

abstract:
  We consider multihadron production processes in different types of collisions
in the framework of the picture based on dissipating energy of participants and
their types. In particular, the similarities of such bulk observables like the
charged particle mean multiplicity and the pseudorapidity density at
midrapidity measured in nucleus-nucleus, (anti)proton-proton and
electron-positron interactions are analysed. Within the description proposed a
good agreement with the measurements in a wide range of nuclear collision
energies from AGS to RHIC is obtained. The predictions up to the LHC energies
are made and compared to experimental extrapolations.


title:
Correlators of hadron currents: the model and the ALEPH data on
  tau-decay

abstract:
  The model with the meson spectrum, consisting of zero-width equidistant
resonances, is considered with connection to current correlators in coordinate
space. The comparison of the explicit expressions for the correlators, obtained
in this model, with the experimental data of ALEPH collaboration on tau-decay
is made and good agreement is found.


title: New Diffraction Results from CDF

abstract:
  We report measurements of hard diffractive processes performed by the CDF
collaboration in proton-antiproton collisions at the Fermilab Tevatron collider
at $\sqrt{s}$=1960 GeV. The characteristics of the diffractive structure
function from diffractive dijet production studies are presented. The results
of exclusive dijet production in double pomeron exchange are discussed in the
context of exclusive Higgs production at the LHC.


title: QCD Effective Field Theories for Heavy Quarkonium

abstract:
  QCD nonrelativistic effective field theories (NREFT) are the modern and most
suitable frame to describe heavy quarkonium properties. Here I summarize few
relevant concepts and some of the interesting physical applications (spectrum,
decays, production) of NREFT.


title:
Factorizable electroweak O(alpha) corrections for top quark pair
  production and decay at a linear e+e- collider

abstract:
  We calculate the standard model predictions for top quark pair production and
decay into six fermions at a linear e+ e- collider. We include the factorizable
electroweak O(alpha) corrections in the pole approximation and QED corrections
due to the initial state radiation in the structure function approach. The
effects of the radiative corrections on the predictions are illustrated by
showing numerical results for two selected six-fermion reactions e+ e- -> b
nu_mu mu+ bar{b} mu- bar{nu_mu} and e+ e- -> b nu_mu mu+ bar{b} d bar{u}.


title:
Thermal and interfacial properties of a Quark Gluon Plasma droplet in a
  hadronic medium via a statistical model

abstract:
  Thermal and interfacial properties of a QGP droplet in a hadronic medium are
computed using a statistical model of the system. The results indicate a weakly
first order transition at a transition temperature \sim (160 \pm 5) MeV. The
interfacial surface tension is proportional to the cube of the transition
temperaure irrespective of the magnitude of the transition temperature. The
velocity of sound in the QGP droplet is predicted to be in the range (0.27 \pm
0.02) times the velocity of light in vacuum, and this value is seen to be
independent of the value of the transition temperature as well as the model
parameters. These predictions are in remarkable agreement with Lattice
Simulation results and extant MIT Bag model predictions.


title: Electric Dipole Moments in Split Supersymmetry

abstract:
  We perform a quantitative study of the neutron and electron electric dipole
moments (EDM) in Supersymmetry, in the limit of heavy scalars. The leading
contributions arise at two loops. We give the complete analytic result,
including a new contribution associated with Z-Higgs exchange, which plays an
important and often leading role in the neutron EDM. The predictions for the
EDM are typically within the sensitivities of the next generation experiments.
We also analyse the correlation between the electron and neutron EDM, which
provides a robust test of Split Supersymmetry.


title: Pythia Tune A, Herwig, and Jimmy in Run 2 at CDF

abstract:
  We study the behavior of the charged particle and energy components of the
"underlying event" in hard scattering proton-antiproton collisions at 1.96TeV.
The goal is to produce data on the "underlying event" that is corrected to the
particle level so that it can be used to tune the QCD Monte-Carlo models
without requiring CDF detector simulation. Unlike the previous CDF Run 2
"underlying event" analysis which used JetClu to define "jets" and compared
uncorrected data with the QCD Monte-Carlo models after detector simulation
(i.e., CDFSIM), this analysis uses the MidPoint jet algorithm and corrects the
observables to the particle level. The corrected observables are then compared
with the QCD Monde-Carlo models at the particle level (i.e., generator level).
The QCD Monte-Carlo models include PYTHIA Tune A, HERWIG, and a tuned version
of JIMMY.


title: QCD At Moderately Large Distances

abstract:
  Invited talk at European Workshop on the QCD Structure of the Nucleon
(QCD-N\'02), Ferrara, Italy, 3--6 Apr 2002


title: Gribov program of understanding confinement

abstract:
  Invited talk at 9th International Workshop on Deep Inelastic Scattering (DIS
2001), Bologna, Italy, 27 Apr -1 May 2001


title: Strength of the Trilinear Higgs Boson Coupling in Technicolor Models

abstract:
  We discuss the strength of the trilinear Higgs boson coupling in technicolor
(or composite) models in a model independent way. The coupling is determined as
a function of a very general ansatz for the technicolor self-energy, and turns
out to be equal or smaller than the one of the standard model Higgs boson
depending on the dynamics of the theory. With this trilinear coupling we
estimate the cross section for Higgs boson pair production at the LHC. This
measurement is quite improbable in the case of a heavy standard model Higgs
boson, but it will be even worse when this boson is dynamically generated.


title: Pentaquark Decay in QCD Sum Rules

abstract:
  In a diquark-diquark-antiquark picture of the pentaquark we study the decay
$\Theta \to K^{+} n$ within the framework of QCD sum rules. After evaluation of
the relevant three-point function, we extract the coupling $g_{\Theta nK}$
which is directly related to the pentaquark width. Restricting the decay
diagrams to those with color exchange between the meson-like and baryon-like
clusters reduces the coupling constant by a factor of four. Whereas a small
decay width might be possible for a positive parity pentaquark, it seems
difficult to explain the measured width for a pentaquark with negative parity.


title:
Towards the Anomalous Dimension to Order Lambda_QCD/m_b for Phase Space
  Restricted B --> X(u) ell anti-nu and B --> X(s) gamma

abstract:
  We examine the anomalous dimension matrix appropriate for the phase space
restricted B --> X(u) ell anti-nu and B --> X(s) gamma decay spectra to
subleading nonperturbative order. The effects of the time ordered products of
the HQET Lagrangian with the leading order shape function operator are
calculated, as are the anomalous dimensions of subleading operators. We
establish the renormalizability and closure of a subset of the non-local
operator basis, a requirement for the establishment of factorization theorems
at this order. Operator mixing is found between the operators which occur to
subleading order, requiring the subleading operator basis be extended. We
comment on the requirement for new shape functions to be introduced to
characterize the matrix elements of these new operators, and the
phenomenological consequences for extractions of $|V_{ub}|$.


title: Is it SUSY?

abstract:
  If a signal for physics beyond the Standard Model is observed at the Tevatron
collider or LHC, we will be eager to interpret it. Because only certain
observables can be studied at a hadron collider, it will be difficult or
impossible to measure masses and spins that could easily establish what physics
was being seen. Nevertheless, different underlying physics implies different
signatures. We examine the main signatures for supersymmetry, with some
emphasis on recognizing supersymmetry in parts of parameter space where generic
signatures are reduced or absent. We also consider how to distinguish
supersymmetry from alternatives that most closely resemble it, such as
Universal Extra Dimensions (UED). Using the robust connection between spins and
production cross section, we think it will not be difficult to distinguish UED
from supersymmetry. We expect that by considering patterns of signatures it is
very likely that it will not be difficult to find a compelling interpretation
of any signal of new physics.


title:
Recent Developments in Parallelization of the Multidimensional
  Integration Package DICE

abstract:
  DICE is a general purpose multidimensional numerical integration package.
There can be two ways in the parallelization of DICE, "distributing random
numbers into workers" and "distributing hypercubes into workers". Furthermore,
there can be the combination of both ways. So far, we had developed the
parallelization code using the former way and reported it in ACAT2002 in
Moscow. Here, we will present the recent developments of parallelized DICE in
the latter way as the 2nd stage of our parallelization activities.


title: Two mixing angle description of radiative VPgamma decays

abstract:
  An analysis of various radiative $VP\gamma$ decays is performed using the two
mixing angle description of the $\eta$-$\eta^\prime$ system. The agreement is
excellent. Our results are expressed both in the ``octet-singlet'' and in the
``quark-flavour'' basis. It turns out that at the present experimental
accuracy, the two angles are significantly different in the former, but not in
the latter basis.


title: Reconsidering extra time-like dimensions

abstract:
  In this study we reconsider the phenomenological problems related to
tachyonic modes in the context of extra time-like dimensions. First we
reconsider a lower bound on the size of extra time-like dimensions. Next we
discuss the issues of spontaneous decay of stable fermions through tachyonic
decays and disappearance of fermions due to tachyonic contributions to their
self-energies. We find that the tachyonic modes due to extra time-like
dimensions are less problematic than the tachyonic modes in the usual
4-dimensional setting because the most troublesome Feynman diagrams are
forbidden once the conservation of momentum in the extra time-like dimensions
is imposed.


title: Radiative return method as a tool in hadronic physics

abstract:
  A short review of both theoretical and experimental aspects of the radiative
return method is presented. It is emphasised that the method gives not only
possibility of the independent from the scan method measurement of the hadronic
cross section, but also can provide information concerning details of the
hadronic interactions. New developments in the PHOKHARA event generator are
also reviewed. The 3 pion and kaon pair production is implemented within the
version 5.0 of the program, together with contributions of the radiative phi
decays to the 2 pion final states.
  Missing NLO radiative corrections to the e+e- -> mu+ mu- gamma process will
be implemented in the forthcoming version of the generator.


title: Neutrino statistics and non-standard commutation relations

abstract:
  Recently it was suggested that the neutrino may violate the Pauli exclusion
Principle (PEP). This renews interest in the systematic search for bilinear
commutation relations that could describe deviations from PEP. In the context
of this search we prove a no-go theorem which forbids a finite occupancy limit
for an arbitrary system with a bilinear commutation relation. In other words,
either the upper limit on the occupancy number is 1 (the ordinary fermionic
case) or there is no upper limit at all. Some examples of the latter class
include the usual Bose statistics, as well as non-standard quon statistics and
infinite statistics.


title:
Revealing treacherous points for successful light-front phenomenological
  applications

abstract:
  Light-front dynamics(LFD) plays an important role in hadron phenomenology as
evidenced from recent development of generalized parton distributions and other
quantities involving hadrons. For successful LFD applications to hadron
phenomenology, however, treacherous points such as zero-mode contributions
should be taken into account. For a concrete example of zero-mode contribution,
we present Standard Model analysis of vector anomaly in the CP-even form
factors of W^{\pm} gauge bosons. Main distinguished features of LFD is
discussed in comparison with other Hamiltonian dynamics. We also present a
power counting method to correctly pin down which hadron form factors receive
the zero-mode contribution and which ones do not. Indications from our analysis
to hadron phenomenology are discussed.


title:
An experiment to detect gravity at sub-mm scale with high-Q mechanical
  oscillators

abstract:
  Silicon double paddle oscillators are well suited for the detection of weak
forces because of their high Q factor (about 10^5 at room temperature). We
describe an experiment aimed at the detection of gravitational forces between
masses at sub-mm distance using such an oscillator. Gravitational excitation is
produced by a rotating aluminium disk with platinum segments. The force
sensitivity of this apparatus is about 10 fN at room temperature for 1000 s
averaging time at room temperature. The current limitations to detection of the
gravitational force are mentioned.


title: Status of Polarized and Unpolarized Deep Inelastic Scattering

abstract:
  The current status of deep inelastic scattering is briefly reviewed. We
discuss future theoretical developments desired and measurements needed to
further complete our understanding of the picture of nucleons at short
distances.


title: Theory of Neutrinos: A White Paper

abstract:
  During 2004, four divisions of the American Physical Society commissioned a
study of neutrino physics to take stock of where the field is at the moment and
where it is going in the near and far future. Several working groups looked at
various aspects of this vast field. The summary was published as a main report
entitled ``The Neutrino Matrix'' accompanied by short 50 page versions of the
report of each working group. Theoretical research in this field has been quite
extensive and touches many areas and the short 50 page report provided only a
brief summary and overview of few of the important points. The theory
discussion group felt that it may be of value to the community to publish the
entire study as a white paper and the result is the current article. After a
brief overview of the present knowledge of neutrino masses and mixing and some
popular ways to probe the new physics implied by recent data, the white paper
summarizes what can be learned about physics beyond the Standard Model from the
various proposed neutrino experiments. It also comments on the impact of the
experiments on our understanding of the origin of the matter-antimatter
asymmetry of the Universe and the basic nature of neutrino interactions as well
as the existence of possible additional neutrinos. Extensive references to
original literature are provided.


title:
Charged lepton mixing and oscillations from neutrino mixing in the early
  Universe

abstract:
  Charged lepton mixing as a consequence of neutrino mixing is studied for two
generations $e,\mu$ in the temperature regime $m_\mu \ll T \ll M_W$ in the
early Universe. We state the general criteria for charged lepton mixing,
critically reexamine aspects of neutrino equilibration and provide arguments to
suggest that neutrinos may equilibrate as mass eigenstates in the temperature
regime \emph{prior} to flavor equalization. We assume this to be the case, and
that neutrino mass eigenstates are in equilibrium with different chemical
potentials. Charged lepton self-energies are obtained to leading order in the
electromagnetic and weak interactions. The upper bounds on the neutrino
asymmetry parameters from CMB and BBN without oscillations, combined with the
fit to the solar and KamLAND data for the neutrino mixing angle, suggest that
for the two generation case there is resonant \emph{charged lepton} mixing in
the temperature range $T \sim 5 \mathrm{GeV}$. In this range the charged lepton
oscillation frequency is of the same order as the electromagnetic damping rate.


title:
Consistency checks of different pion-pion scattering data sets using
  forward dispersion relations

abstract:
  We review our evaluation of forward dispersion relations for direct fits to
the different, and often conflicting, pion-pion scattering experimental
analyses. We find that some of the most commonly used data sets do not satisfy
these constraints by several standard deviations. We also provide a consistent
pion-pion amplitude by improving a global fit to data with these dispersion
relations.


title:
Chiral-dispersive calculations of pion-pion scattering confront
  experiment

abstract:
  In a series of papers we have applied several sum rules and forward
dispersion relations, to pion-pion scattering. We have found that some widely
used data sets fail to satisfy these constraints, and we have provided an
amplitude that describes data consistently with the dispersive tests.
Furthermore, we noted that the input and precision claimed in a Roy equation
analysis by Colangelo, Gasser and Leutwyler, lead to several mismatches with
some sum rules. Subsequently, Caprini, Colangelo, Gasser and Leutwyler claimed
that our Regge parametrization was incorrect. We collect here the answers to
their various claims, and try to clarify the points of agreement and
disagreement, showing experimental evidence that substantiates our results, and
that, in addition, their representation fails to satisfy all three forward
dispersion relations up to sqrt{s}<=800 MeV by several standard deviations.


title:
Light composite Higgs and precision electroweak measurements on the Z
  resonance: An update

abstract:
  We update our analysis of technicolour theories with techniquarks in higher
dimensional representations of the technicolour gauge group in the light of the
new electroweak precision data on the Z resonance.


title: pi-pi scattering amplitudes constrained by Roy's equations

abstract:
  The scalar-isoscalar, scalar-isotensor and vector-isovector pi-pi amplitudes
have been fitted simultaneously to experimental data and to to Roy's equations.
Resulting pi-pi phase shifts up to 1600 MeV and near threshold observables have
been analyzed. Only the amplitudes fitted to the "down-flat" set of phase
shifts in scalar-isoscalar wave fulfill crossing symmetry conditions and can be
regarded as physical.


title: Phase effects in neutrino conversions during a supernova shock wave

abstract:
  Neutrinos escaping from a core collapse supernova a few seconds after bounce
pass through the shock wave, where they may encounter one or more resonances
corresponding to $\Delta m^2_{\rm atm}$. The neutrino mass eigenstates in
matter may stay coherent between these multiple resonances, giving rise to
oscillations in the survival probabilities of neutrino species. We provide an
analytical approximation to these inevitable phase effects, that relates the
density profile of the shock wave to the oscillation pattern. The phase effects
are present only if the multiple resonances encountered by neutrinos are
semi-adiabatic, which typically happens for $10^{-5} \lsim \sin^2 \theta_{13}
\lsim 10^{-3}$. The observability of these oscillations is severely limited by
the inability of the detectors to reconstruct the neutrino energy faithfully.
For typical shock wave profiles, the detection of these phase effects seems
rather unlikely. However, if the effects are indeed identified in the $\nuebar$
spectra, they would establish inverted hierarchy and a nonzero value of
$\theta_{13}$.


title: Unraveling Soft Components in the Shape Function for Inclusive B Decays

abstract:
  We present a systematic study of the shape function for inclusive B-meson
decays in the heavy-quark limit, which is based on the QCD equations of motion
and heavy-quark symmetry, and takes into account the cusp divergence due to
radiative corrections.


title: Generalized parton distributions from form factors

abstract:
  The electromagnetic nucleon form factors provide constraints on generalized
quark distributions. Key results of the study presented here are a strong
dependence of the average impact parameter of quarks on their longitudinal
momentum fraction, a striking difference in the t dependence of u and d quark
contributions to elastic form factors, and an estimate of the orbital angular
momentum carried by valence quarks in the nucleon.


title:
Pion condensation in electrically neutral cold matter with finite baryon
  density

abstract:
  The possibility of the pion condensation phenomenon in cold and electrically
neutral dense baryonic matter is investigated in $\beta$-equilibrium. For
simplicity, the consideration is performed in the framework of a NJL model with
two quark flavors at zero current quark mass and for rather small values of the
baryon chemical potential, where the diquark condensation might be ignored. Two
sets of model parameters are used. For the first one, the pion condensed phase
with finite baryon density is realized. In this phase both electrons and the
pion condensate take part in the neutralization of the quark electric charge.
For the second set of model parameters, the pion condensation is impossible if
the neutrality condition is imposed. The behaviour of meson masses vs quark
chemical potential has been studied in electrically neutral matter.


title: Chiral Breit-Wigner

abstract:
  Chiral symmetry and unitarization are combined into generalized Breit-Wigner
expressions describing scalar resonances, which contain free parameters and
allow flexible descriptions of masses, widths and pole positions. This
theoretical tool is especially designed to be used in analyses of low-energy
data.


title:
Angular correlations in single-top-quark and Wjj production at
  next-to-leading order

abstract:
  I demonstrate that the correlated angular distributions of final-state
particles in both single-top-quark production and the dominant Wjj backgrounds
can be reliably predicted. Using these fully-correlated angular distributions,
I propose a set of cuts that can improve the single-top-quark discovery
significance by 25%, and the signal to background ratio by a factor of 3 with
very little theoretical uncertainty. Up to a subtlety in t-channel
single-top-quark production, leading-order matrix elements are shown to be
sufficient to reproduce the next-to-leading order correlated distributions.


title: Top Partners in Little Higgs Theories with T-parity

abstract:
  We consider a class of little Higgs theories with T-parity where ALL new
particles responsible for canceling the standard model contributions to the
one-loop quadratic divergences in the Higgs potential are odd under T-parity,
including the heavy top partner which was previously taken to be T-even. The
new construction significantly simplifies the spectrum in the top sector and
completely changes the phenomenology of the top partner. At hadron colliders
the signals of this class of T-invariant models appear to be even more similar
to supersymmetry. We initiate a study on the collider phenomenology and discuss
the challenge of distinguishing this class of models from supersymmetry at the
Large Hadron Collider.


title:
On Scalar Meson Dominance in Semi- and Non-Leptonic Weak Pseudoscalar
  Meson Decays

abstract:
  Aspects of Scalar Meson Dominance in semi- and non-leptonic weak pseudoscalar
meson decays are shortly discussed on the basis of the Quark-Level Linear Sigma
Model.


title: High mass diffraction at the Tevatron and the LHC

abstract:
  We use a Monte Carlo implementation of recently developped models of
exclusive diffractive $W$, top, Higgs and stop productions to assess the
sensitivity of the LHC experiments.


title: One Explanation for the Exotic State Y(4260)

abstract:
  In this Letter we interpret the Y(4260), a state recently discovered by the
BaBar Collaboration that has a mass within the range of conventional charmonium
states, as having a molecular-state structure. In our scheme this
molecular-like state is not constructed out of two-quark mesons, but rather out
of baryons, i.e., the Y(4260) is a baryonium state. With this interpretation,
the unusual measured properties of the Y(4260) are easily understood and some
further peculiar decay characteristics are predicted.


title:
A role of parton charges and masses in the exclusive photon-photon
  production of meson pairs

abstract:
  The exclusive photon-photon production of the $K$-meson pairs has been
analyzed within the partonic model of QCD for the kinematical conditions of
BELLE experiment. The cross section dependences on partonic masses, charges,
and a shape of $K$-meson wave function have been studied for the process under
discussion.


title: A D-brane inspired U(3)_CxU(3)_LxU(3)_R model

abstract:
  Motivated by D-brane scenarios, we consider a non-supersymmetric model based
on the gauge symmetry U(3)_CxU(3)_LxU(3)_R$ which is equivalent to the SU(3)^3
``trinification'' model supplemented by three U(1)s. Two U(1) combinations are
anomalous while the third U(1)_Z' is anomaly free and contributes to the
hypercharge generator. This hypercharge embedding correspods to
sin^2\theta_W=6/19 in the case of full gauge coupling unification. The U(3)^3
symmetry is broken down to the Standard Model by vev's of two (1,3,\bar3)-
scalar multiplets supplemented by two Higgs fields in (1,3,1) and (1,1,3)
representations. The latter break U(1)_Z' and provide heavy masses to the extra
lepton doublets. Fermions belong to (3,\bar 3,1)+(\bar 3,1,3)+ (1,3,\bar 3)
representations as in the trinification model. The model predicts a natural
quark-lepton hierarchy, since quark masses are obtained from tree-level
couplings, while charged leptons receive masses from fourth order Yukawa terms,
as a consequence of the extra abelian symmetries. Light Majorana neutrino
masses are obtained through a see-saw type mechanism operative at the SU(3)_R
breaking scale of the order M_R\ge 10^9 GeV.


title:
Invariance group important for the interpretation of Bose-Einstein
  correlations

abstract:
  A group of transformations changing the phases of the elements of the
single-particle density matrix, but leaving unchanged the predictions for
identical particles concerning the momentum distributions, momentum
correlations etc., is identified. Its implications for the determinations of
the interaction regions from studies of Bose-Einstein correlations are
discussed.


title: Isotropization and Thermalization in Heavy Ion Collisions

abstract:
  We argue that isotropization and, consequently, thermalization of the system
of gluons and quarks produced in an ultrarelativistic heavy ion collision does
not follow from Feynman diagram analysis to any order in the coupling constant.
We conclude that the apparent thermalization of quarks and gluons, leading to
success of perfect fluid hydrodynamics in describing heavy ion collisions at
RHIC, can only be attributed to the non-perturbative QCD effects not captured
by Feynman diagrams.
  We proceed by modeling these non-pertrubative thermalization effects using
viscous hydrodynamics. We point out that matching Color Glass Condensate inital
conditions with viscous hydrodynamics leads to continuous evolution of all
components of energy-momentum tensor and, unlike the case of ideal
hydrodynamics, does not give a discontinuity in the longitudinal pressure. An
important consequence of such a matching is a relationship between the
thermalization time and shear viscosity: we observe that small viscosity leads
to short thermalization time.


title: Finite size effects on pion spectra in relativistic heavy-ion collisions

abstract:
  We compute the pion inclusive transverse momentum distribution assuming
thermal equilibrium together with transverse flow and accounting for finite
size effects and energy loss at the time of decoupling. We compare to data on
mid-rapidity pions produced in central collisions in RHIC at sqrt{s_{NN}}=200
GeV. We find that a finite size for the system of emitting particles results in
a power-like fall-off of the spectra that follows the data up to larger p_t
values, as compared to a simple thermal model.


title: Kination Dominated Reheating and Cold Dark Matter Abundance

abstract:
  We consider the decay of a massive particle under the complete or partial
domination of the kinetic energy density generated by a quintessential
exponential model and we impose a number of observational constraints
originating from nucleosynthesis, the present acceleration of the universe and
the dark-energy-density parameter. We show that the presence of kination causes
a prolonged period during which the temperature is frozen to a plateau value,
much lower than the maximal temperature achieved during the process of
reheating in the absence of kination. The decoupling of a cold dark matter
particle during this period is analyzed, its relic density is calculated both
numerically and semi-analytically and the results are compared with each other.
Using plausible values (from the viewpoint of particle models) for the mass and
the thermal averaged cross section times the velocity of the cold relic, we
investigate scenaria of equilibrium or non-equilibrium production. In both
cases, acceptable results for the cold dark matter abundance can be obtained,
by constraining the initial energy density of the decaying particle, its decay
width, its mass and the averaged number of the produced cold relics. The
required plateau value of the temperature is, in most cases, lower than about
40 GeV


title: Two-loop sunset diagrams with three massive lines

abstract:
  In this paper, we consider the two-loop sunset diagram with two different
masses, m and M, at spacelike virtuality q^2 = -m^2. We find explicit
representations for the master integrals and an analytic result through
O(epsilon) in d=4-2epsilon space-time dimensions for the case of equal masses,
m = M.


title: News about TeV-scale Black Holes

abstract:
  Collider produced black holes are the most exciting prediction from models
with large extra dimensions. These black holes exist in an extreme region, in
which gravity meets quantum field theory, particle physics, and thermodynamics.
An investigation of the formation and decay processes can therefore provide us
with important insights about the underlying theory and open a window to the
understanding of Physics at the Planck scale. The production and the
evaporation of TeV-scale black holes yields distinct signatures that have been
examined closely during the last years, with analytical approaches as well as
by use of numerical simulations. I present new results for the LHC, which take
into account that, instead of a final decay, a black hole remnant can be left.
  This is a summary of the talk given at the Quark Matter 2005, Budapest,
Hungary, Aug. 2005.


title: Light Cone Sum Rules for gamma* N -> Delta Transition Form Factors

abstract:
  A theoretical framework is suggested for the calculation of gamma* N -> Delta
transition form factors using the light-cone sum rule approach. Leading-order
sum rules are derived and compared with the existing experimental data. We find
that the transition form factors in a several GeV region are dominated by the
``soft'' contributions that can be thought of as overlap integrals of the
valence components of the hadron wave functions. The ``minus'' components of
the quark fields contribute significantly to the result, which can be
reinterpreted as large contributions of the quark orbital angular momentum


title: Analyticity as a Robust Constraint on the LHC Cross Section

abstract:
  It is well known that high energy data alone do not discriminate between
asymptotic $\ln s$ and $\ln^2s$ behavior of $pp$ and $\bar pp$ cross sections.
By exploiting high quality low energy data, analyticity resolves this ambiguity
in favor of cross sections that grow asymptotically as $\ln^2s$. We here show
that two methods for incorporating the low energy data into the high energy
fits give numerically identical results and yield essentially identical tightly
constrained values for the LHC cross section. The agreement can be understood
as a new analyticity constraint derived as an extension of a Finite Energy Sum
Rule.


title: A Review On Diquark Physics in QCD Phase Transition

abstract:
  The importance of diquarks has been noticed in the context of several
elementary particle processes. In recent years the study of diquarks has become
of considerable interest in highlighting its role in high density physics from
the point of view of astrophysical situations and cosmological conditions. In
the present paper an attempt is made to briefly review the role of diquarks in
conventional physics and in Quantum Chromodynamic phase transition. The
importance of equation of state for point-like scalar diquark (PSD) and
extended scalar diquark (ESD) gas and matter is reviewed. In this regard, the
sensitivity of ESD energy on the effective interaction parameter, within the
frame work of \phi^4 theory, is studied. The role of diquarks in astro-physical
situations and cosmological conditions with reference to the early phases of
the origin of the universe is discussed. The recent discovery of \theta^+
(1540) baryon - a pentaquark, which may be considered as a two highly
correlated ud-diquark pairs and an anti strange quark, is also highlighted.


title:
Hadron Spectroscopy and Wavefunctions in QCD and the AdS/CFT
  Correspondence

abstract:
  The AdS/CFT correspondence has led to important insights into the properties
of quantum chromodynamics even though QCD is a broken conformal theory. A
holographic model based on a truncated AdS space can be used to obtain the
hadronic spectrum of light $q \bar q, qqq$ and $gg$ bound states. Specific
hadrons are identified by the correspondence of string modes with the dimension
of the interpolating operator of the hadron's valence Fock state, including
orbital angular momentum excitations. The predicted mass spectrum is linear $M
\propto L$ at high orbital angular momentum. Since only one parameter, the QCD
scale $\Lambda_{QCD}$, is introduced, the agreement with the pattern of
physical states is remarkable. In particular, the ratio of $\Delta$ to nucleon
trajectories is determined by the ratio of zeros of Bessel functions. One can
also use the extended AdS/CFT space-time theory to obtain a model for hadronic
light-front wavefunctions, thus providing a relativistic description of hadrons
in QCD at the amplitude level. The model wavefunctions display confinement at
large inter-quark separation and conformal symmetry at short distances. In
particular, the scaling and conformal properties of the LFWFs at high relative
momenta agree with perturbative QCD. These AdS/CFT model wavefunctions could be
used as an initial ansatz for a variational treatment of the light-front QCD
Hamiltonian. Hadron form factors in both the space-like and time-like regions
are also predicted.


title: SCET Analysis of B -> K pi, B -> K Kbar, and B -> pi pi Decays

abstract:
  B -> K pi and related decays are studied in the heavy quark limit of QCD
using the soft collinear effective theory (SCET). We focus on results that
follow solely from integrating out the scale mb, without expanding the
amplitudes for the physics at smaller scales such as alphas(sqrt{Epi
LambdaQCD}). The reduction in the number of hadronic parameters in SCET leads
to multiple predictions without the need of SU(3). We find that the
CP-asymmetry in $B^-\to pi^0 K^-$ should have a similar magnitude and the same
sign as the well measured asymmetry in $\bar B^0 \to\pi^+ K^-$. Our prediction
for Br(K^+\pi^-) exceeds the current experimental value at the 2 sigma level.
We also use our results to determine the corrections to the Lipkin and
CP-asymmetry sum rules in the standard model and find them to be quite small,
thus sharpening their utility as a tool to look for new physics.


title: Physics with a very first low-energy beta-beam

abstract:
  We describe the importance of having low-energy (10-100 MeV) neutrino beams
produced through the decay of boosted radioactive ions (``beta-beams''). We
focus on the interest for neutrino-nucleus interaction studies and their impact
for astrophysics, nuclear and particle physics. In particular, we discuss the
relation to neutrinoless double-beta decay. Finally, we mention the status as
far as the feasibility of low-energy beta-beams is concerned.


title: Improved Naturalness and the Two Higgs Doublet Model

abstract:
  The natural cutoff scale for the quadratically divergent top quark
contribution to the Higgs mass parameter can be significantly raised above the
surprisingly low standard model value, with important consequences for the LHC:
the physics that cancels the top quark divergence may be out of reach, while an
electroweak sector with "improved naturalness" may be discovered. Such a
sector, consistent with electroweak precision tests, arises in the two Higgs
doublet model with heavy Higgs and top quark interactions that approach strong
coupling.


title: Pole wave-function renormalization prescription for unstable particles

abstract:
  We base a new wave-function renormalization prescription on the pole mass
renormalization prescription, in which the Wave-function Renormalization
Constant (WRC) is extracted by expanding the particle's propagator around its
pole, rather than its physical mass point as convention. We find the difference
between the new and the conventional WRC is gauge-parameter dependent for
unstable particles beyond one-loop level, which will lead to some physical
results gauge dependent under the conventional wave-function renormalization
prescription beyond one-loop level.


title: New Physics in b -> s bar(s) s Decay. II: Study of B -> V1 V2 Modes

abstract:
  Various nonleptonic decay channels mediated by the quark-level subprocess
$b\to s\bar{s} s$ show hints of deviation from the Standard Model expectations.
We analyse the double-vector decay $B\to\phi K^\ast$ with different generic new
physics structures and find the constraints on the parameter spaces of new
physics. The allowed parameter spaces are compatible with, but further narrowed
down from, those obtained from a similar analysis using pseudoscalar modes. We
also discuss further predictions for this channel as well as for
$B_s\to\phi\phi$, and show how even a partial measurement of the observables
may discriminate between different models of new physics.


title:
Feasibility study of model-independent approach to phi_3 measurement
  using Dalitz plot analysis

abstract:
  We present results of a feasibility study of a model-independent way to
measure the angle phi_3 of the unitarity triangle. The method involves B->DK
decays where the neutral D decays to the K_S Pi+ Pi- final state, together with
the sample of decays of CP-tagged D mesons (produced, e. g. in psi(3770)->DDbar
process) to the same final state. We consider different approaches to the
extraction of phi_3 and obtain the expected statistical accuracy of the phi_3
measurement as a function of B and D_CP statistics.


title: QCD Effective Couplings in Minkowskian and Euclidean Domains

abstract:
  We argue for essential upgrading of the defining equations (9.5) and (9.6) in
Section 9.2 "The QCD coupling ... " of PDG review and their use for data
analysis in the light of recent development of the QCD theory. Our claim is
twofold. First, instead of universal expression (9.5) for QCD coupling
$\bar{\alpha}_s$, one should use various ghost-free couplings $\alpha_E(Q^2),
\alpha_M(s)...$ specific for a given physical representation, Euclidean,
Mincowskian etc. Second, instead of power expansion (9.6) for observable, we
recommend to use nonpower functional ones over particular functional sets
${{\cal A}_k(Q^2)}$, ${{\mathfrak A}_k(s)}...$ related by suitable integral
transformations. We remind that use of this modified prescription results in a
better correspondence of reanalyzed low energy data with the high energy ones.


title: The background for Cherenkov gluons at RHIC and LHC energies

abstract:
  The pseudorapidity distribution of centers of dense isolated groups of
particles in HIJING model is determined. It can be considered as the background
for Cherenkov gluons. If peaks over this background were found in experiment,
they would indicate the onset of new collective effects.


title: Anomalous Magnetic Moments and Quark Orbital Angular Momentum

abstract:
  We derive an inequality for the distribution of quarks with non-zero orbital
angular momentum, and thus demonstrate, in a model-independent way, that a
non-vanishing anomalous magnetic moment requires both a non-zero size of the
target as well as the presence of wave function components with quark orbital
angular momentum L_z>0.


title: Soft and hard jets in QCD

abstract:
  Multiplicity of sets of soft jets with energies ranging in some interval is
determined. The possible role of collective effects is discussed.


title: Nonthermal production of baryon and dark matter

abstract:
  We study nonthermal production of baryon and dark matter. If we extend the
MSSM by introducing some singlet chiral superfields so as to enlarge the
conserved global symmetry, the abundance of the baryon and the dark matter in
the universe may be explained as the charge asymmetry of that symmetry. In such
a case, the baryon energy density and the dark matter energy density in the
present universe can be correlated each other and take the similar order values
naturally.


title: Light Superpartners at Hadron Colliders

abstract:
  Uncertainties of the MSSM predictions are due to an unknown SUSY breaking
mechanism. To reduce these uncertainties, one usually imposes constraints on
the MSSM parameter space. Recently, two new constraints became available, both
from astrophysics: WMAP precise measurement of the amount of the Dark Matter in
the Universe and EGRET data on an excess in diffuse gamma ray flux. Being
interpreted as a manifestation of supersymmetry these data lead to severe
constraints on parameter space and single out a very restricted area. The key
feature of this area is the splitting of light gauginos from heavy squarks and
sleptons. We study the phenomenological properties of this scenario, in
particular, the cross-sections of superparticle production, their decay
patterns and signatures for observation at hadron colliders, Tevatron and LHC.
We found that weakly interacting particles in this area are very light so that
the cross-sections may reach fractions of a pb with jets and/or leptons as
final states accompanied by missing energy taken away by light neutralino with
a mass around 100 GeV.


title:
Full one-loop supersymmetric corrections to charged Higgs boson pair
  production in $\gamma\gamma$ collisions

abstract:
  The complete one-loop electroweak corrections to charged Higgs boson pair
production in $\gamma\gamma$ collision mode at linear colliders in the minimal
supersymmetric standard model (MSSM), are calculated in this paper. We discuss
the dependence of the corrections to the subprocess $\gamma\gamma \to
H^{+}H^{-}$ on the related parameters, such as the colliding energy, charged
Higgs boson mass $M_{H^{\pm}}$ and some supersymmetric parameters $\tan \beta$,
$M_{SUSY}$ and gaugino mass parameter $M_2$. We find that the corrections
generally reduce the Born cross sections and the relative one-loop corrections
to both the subprocess typically in the range of -10% to -30%. We also present
the numerical results at the SPS1a' point from the SPA project. We conclude
that the full one-loop electroweak corrections to subprocess $\gamma \gamma \to
H^{+}H^{-}$ and the parent process $e^+e^- \to \gamma \gamma \to H^{+}H^{-}$
are significant and therefore should be considered in precise analysis of
charged Higgs boson pair productions via $\gamma\gamma$ collision at future
linear colliders.


title: Flavor and CP violating physics from new supersymmetric thresholds

abstract:
  Treating the MSSM as an effective theory, we study the implications of having
dimension five operators in the superpotential for flavor and CP-violating
processes, exploiting the linear decoupling of observable effects with respect
to the new threshold scale \Lambda. We show that the assumption of weak scale
supersymmetry, when combined with the stringent limits on electric dipole
moments and lepton flavor-violating processes, provides sensitivity to \Lambda
as high as 10^7-10^9 GeV, while the next generation of experiments could
directly probe the high-energy scales suggested by neutrino physics.


title:
Electric dipole and magnetic quadrupole moments of the $W$ boson via a
  CP-violating $HWW$ vertex in effective Lagrangians

abstract:
  The possibility of nonnegligible $W$ electric dipole ($\widetilde{\mu}_W$)
and magnetic quadrupole ($\widetilde{Q}_W$) moments induced by the most general
$HWW$ vertex is examined via the effective Lagrangian technique. It is assumed
that new heavy fermions induce an anomalous CP-odd component of the $HWW$
vertex, which can be parametrized by an $SU_L(2)\times U_Y(1)$-invariant
dimension-six operator. This anomalous contribution, when combined with the
standard model CP-even contribution, lead to CP-odd electromagnetic properties
of the $W$ boson, which are characterized by the form factors $\Delta
\widetilde{\kappa}$ and $\Delta \widetilde{Q}$. It is found that $\Delta
\widetilde{\kappa}$ is divergent, whereas $\Delta \widetilde{Q}$ is finite,
which reflects the fact that the latter cannot be generated at the one-loop
level in any renormalizable theory. Assuming reasonable values for the unknown
parameters, we found that $\widetilde{\mu}_W\sim 3-6\times 10^{-21}$ e-cm,
which is eight orders of magnitude larger than the SM prediction and close to
the upper bound derived from the neutron electric dipole moment. The estimated
size of the somewhat less-studied $\widetilde{Q}_W$ moment is of the order of
$-10^{-36}$ e-cm^2, which is fifteen orders of magnitude above the SM
contribution.


title: Viewing Lepton Mixing through the Cabibbo Haze

abstract:
  We explore the hypothesis that the Cabibbo angle is an expansion parameter
for lepton as well as quark mixing. Cabibbo effects are deviations from zero
mixing for the quarks but are deviations from unknown mixings for the leptons,
such that lepton mixing is veiled by a Cabibbo haze. We present a systematic
classification of parametrizations and catalog the leading order Cabibbo
effects. We find that the size of the CHOOZ angle is not always correlated with
the observability of CP violation. This phenomenological approach has practical
merit both as a method for organizing top-down flavor models and as a guideline
for planning future experiments.


title: Neutralino annihilation beyond leading order

abstract:
  High-precision measurements of the relic dark matter density and the
calculation of dark matter annihilation branching fractions in the sun or the
galactic halo today motivate the computation of the neutralino annihilation
cross section beyond leading order. We consider neutralino annihilation via
squark exchange and parameterize the effective annihilation vertex as a
dimension-six operator suppressed by two powers of the squark mass and related
to the divergence of the axial vector current of the final-state quarks. Since
the axial vector current is conserved at tree level in the limit of massless
quarks, this dimension-six operator contains a suppression by the quark mass.
The quark mass suppression can be lifted in two ways: (1) by corrections to the
dimension-six operator involving the anomalous triangle diagram, and (2) by
going to dimension-eight. We address the first of these possibilities by
evaluating the anomalous triangle diagram, which contributes to neutralino
annihilation to gluon pairs. We relate the triangle diagram via the anomaly
equation to the decay of a pseudoscalar into two gluons and use the
Adler-Bardeen theorem to extract the next-to-leading order (NLO) QCD
corrections to chi chi --> gg from the known corrections to pseudoscalar decay.
The strong dependence of the dominant chi chi --> q qbar cross section on the
relative velocity of the neutralinos makes these NLO corrections unimportant at
chi decoupling but significant today.


title:
Quantum Treatment of the Multiple Scattering and Collective Flow in
  Intensity Interferometry

abstract:
  We apply the path-integral method to study the multiple scattering and
collective flow in intensity interferometry in high-energy heavy-ion
collisions. We show that the Glauber model and eikonal approximation in an
earlier quantum treatment are special examples of the more general
path-integral method. The multiple scattering and collective flow lead
essentially to an initial source at a shifted momentum, with a multiple
collision absorption factor that depends on the pion absorption cross section
and a phase factor that depends on the deviations of the in-medium particle
momenta from their asymptotic values.


title: Lepton-nucleus scattering in the impulse approximation regime

abstract:
  We discuss theoretical calculations of electron- and neutrino-nucleus
scattering, carried out using realistic nuclear spectral functions and
including the effect of final state interactions. Comparison between electron
scattering data and the calculated inclusive cross sections off oxygen shows
that the Fermi gas model fails to provide a satisfactory description of the
measured cross sections, and inclusion of nuclear dynamics is needed. The role
of Pauli blocking in charged-current neutrino induced reactions at low $Q^2$ is
also analyzed.


title: Initial-state nuclear effects in proton-nucleus collisions

abstract:
  Two important initial-state nuclear effects in hadron-nucleus collisions are
considered. The ratios of inclusive differential cross sections for Drell-Yan
dimuon production are calculated. The calculated results are compared to the
E866 data. It is shown that consideration of multiple soft rescatterings of
incident quarks in nuclei and initial-state quark energy loss effects allow to
get a good agreement between the calculated results and the experimental data.


title:
Possible violation of the spin-statistics relation for neutrinos:
  checking through future galactic supernova

abstract:
  We use the detection of neutrinos from a future galactic type-II supernova
event in a water Cerenkov detector like Super-Kamiokande to constrain the
possible violation of spin-statistics by neutrinos resulting in their obeying a
mixed statistics instead of Fermi-Dirac.


title: Light-cone sum rules: A SCET-based formulation

abstract:
  We describe the construction of light-cone sum rules (LCSRs) for exclusive
$B$-meson decays into light energetic hadrons from correlation functions within
soft-collinear effective theory (SCET). As an example, we consider the SCET sum
rule for the $B \to \pi$ transition form factor at large recoil, including
radiative corrections from hard-collinear loop diagrams at first order in the
strong coupling constant.


title: The Heavy Quark Fragmentation Function at NNLO

abstract:
  We present a general discussion of collider processes with not-completely
inclusive production of heavy flavors. We review the Perturbative Fragmentation
Functions formalism as the appropriate tool for studying such processes and
detail the extension of this formalism at Next-to-Next-to-Leading order. We
conclude that the prospects for the future in this field are bright and at
present are limited by the available experimental data. Hopefully, the future
ILC will be able to fill this gap.


title: From high-energy QCD to statistical physics

abstract:
  I discuss recent progress in understanding the high-energy evolution in QCD,
which points towards a remarkable correspondence with the reaction-diffusion
problem of statistical physics. This enables us to determine the asymptotic
behaviour of the scattering amplitudes in QCD.


title: Pomerons loops and duality in high energy QCD

abstract:
  I discuss the physical picture underlying the evolution equations with
Pomeron loops recently derived in multicolor QCD at high energy and
qualitatively explain the notion of `self-duality'.


title: Small-x QCD effects in forward-jet and Mueller-Navelet jet production

abstract:
  We investigate small-x QCD effects in forward-jet production in deep
inelastic scattering in the kinematic regime where the virtuality of the photon
and the transverse momentum of the jet are two hard scales of about the same
magnitude. We show that the data from HERA published by the H1 and ZEUS
collaborations are well described by leading-logarithmic BFKL predictions.
Parametrizations containing saturation effects expected to be relevant at
higher energies also compare well to the present data. We extend our analysis
to Mueller-Navelet jets at the LHC and discuss to what extent this observable
could test these small-x effects and help distinguishing between the different
descriptions.


title: Gauss-Bonnet Brane Cosmology with Radion Stabilization

abstract:
  We study cosmology in a five-dimensional brane-world with a stabilizing
effective potential for the radion and matter localized on the two branes. We
consider the corrections induced by the Gauss-Bonnet contribution to the total
action performing and expansion around the two possible static solutions up to
second order in the ratio between brane matter energy density and brane
tensions. The Friedmann and acceleration equations on the visible brane are
obtained and discussed.


title:
The scalar and pseudoscalar sector in a five-dimensional approach to
  chiral symmetry breaking

abstract:
  We study the scalar and pseudoscalar sector in a five-dimenional model
describing chiral symmetry breaking. We calculate the scalar and pseudoscalar
two-point correlator, the mass spectrum and interactions. We also obtain the
scalar and pseudoscalar contributions to the coefficients of the chiral
lagrangian and determine the scalar form factor of the pseudo-Goldstone bosons.
Most quantities show a good agreement with QCD.


title: Solution to Trouble of D_sJ Particles

abstract:
  Recent discovery of D_sJ particles, which are considered to be a great
trouble by experimentalists as well as theorists, had already been resolved by
our potential model proposed some time ago by two of us (T.M. and T.M.), in
which the Hamiltonian and wave functions are expanded in 1/(heavy quark mass)
respecting heavy quark symmetry.
  Using our model, we explain how narrow states like D_sJ can be realized,
predict properties of 0^+ and 1^+ states of B and B_s heavy mesons, and
interpret how global SU(3) symmetry seems to be recovered for these 0^+ and 1^+
heavy mesons.


title: Diffraction at Tevatron and LHC in the Miettinen-Pumplin model

abstract:
  The process of soft diffractive dissociation in hadronic collisions is
discussed in the framework of the Miettinen-Pumplin model. A good description
of the data in the ISR-Tevatron energy range is found. Predictions for the
total, elastic and single diffractive cross sections for the LHC are also
presented. The total cross section is expected to be 15% smaller than that
given by Donnachie and Landshoff in the model with soft pomeron. The
diffractive cross section remains constant in the Tevatron-LHC energy range.


title:
Signals of non-extensive statistical mechanics in high-energy nuclear
  collisions

abstract:
  Starting from the presence of non-ideal plasma effects due to strongly
coupled plasma in the early stage of relativistic heavy-ion collisions, we
investigate, from a phenomenological point of view, the relevance of
non-conventional statistical mechanics effects on the rapidity spectra of net
proton yield at AGS, SPS and RHIC. We show that the broad rapidity shape
measured at RHIC can be very well reproduced in the framework of a non-linear
relativistic Fokker-Planck equation which incorporates non-extensive statistics
and anomalous diffusion.


title: Neutrino Mass Matrices with Vanishing Determinant and $\theta_{13}$

abstract:
  We investigate the prospects for scenarios with vanishing determinant
neutrino mass matrices and vanishing $\theta_{13}$ mixing angle. Normal and
inverse mass hierarchies are considered separately. For normal hierarchy it is
found that neutrinoless double beta decay cannot be observed by any of the
present or next generation experiments. For inverse hierarchy the neutrinoless
double beta decay is, on the contrary, accessible to experiments. We also
analyse for both hierarchies the case for texture zeros and equalities between
mass matrix elements. No texture zeros are found to be possible nor any such
equalities, apart from the obvious ones.


title: Natural Little Hierarchy from a Partially Goldstone Twin Higgs

abstract:
  We construct a simple theory in which the fine-tuning of the standard model
is significantly reduced. Radiative corrections to the quadratic part of the
scalar potential are constrained to be symmetric under a global U(4) x U(4)'
symmetry due to a discrete Z_2 "twin" parity, while the quartic part does not
possess this symmetry. As a consequence, when the global symmetry is broken the
Higgs fields emerge as light pseudo-Goldstone bosons, but with sizable quartic
self-interactions. This structure allows the cutoff scale, \Lambda, to be
raised to the multi-TeV region without significant fine-tuning. In the minimal
version of the theory, the amount of fine-tuning is about 15% for \Lambda = 5
TeV, while it is about 30% in an extended model. This provides a solution to
the little hierarchy problem. In the minimal model, the "visible" particle
content is exactly that of the two Higgs doublet standard model, while the
extended model also contains extra vector-like fermions with masses ~(1-2)TeV.
At the LHC, our minimal model may appear exactly as the two Higgs doublet
standard model, and new physics responsible for cutting off the divergences of
the Higgs mass-squared parameter may not be discovered. Several possible
processes that may be used to discriminate our model from the simple two Higgs
doublet model are discussed for the LHC and for a linear collider.


title: Neutrinos in a left-right model with a horizontal symmetry

abstract:
  We analyze the lepton sector of a Left-Right Model based on the gauge group
SU(2)_L x SU(2)_R x U(1), concentrating mainly on neutrino properties. Using
the seesaw mechanism and a horizontal symmetry, we keep the right-handed
symmetry breaking scale relatively low, while simultaneously satisfying
phenomenological constraints on the light neutrino masses. We take the
right-handed scale to be of order 10's of TeV and perform a full numerical
analysis of the model's parameter space, subject to experimental constraints on
neutrino masses and mixings. The numerical procedure yields results for the
right-handed neutrino masses and mixings and the various CP-violating phases.
We also discuss phenomenological applications of the model to neutrinoless
double beta decay, lepton-flavor-violating decays (including decays such as
\tau \to 3\mu) and leptogenesis.


title: TASI Lectures on Electroweak Symmetry Breaking from Extra Dimensions

abstract:
  This is a pedagogical introduction into the possible uses and effects of
extra dimensions in electroweak (TeV scale) physics, and in particular to
models of electroweak symmetry breaking via boundary conditions ("higgsless
models"). It is self contained: all the aspects of extra dimensional and
electroweak physics used here are reviewed, before we apply these concepts to
higgsless models. In the first lecture gauge theories in an extra dimension and
on an interval are discussed. In the second lecture we describe the basic
structure of higgsless models, while in the third lecture we discuss fermions
in extra dimensions and the inclusion of fermions into higgsless models. The
final lecture is devoted to the issue of electroweak precision observables in
theories beyond the standard model and its applications to extra dimensional
theories and in particular the higgsless models.


title: Lepton Photon Symposium 2005: Summary and Outlook

abstract:
  Lepton Photon 2005 told the saga of the Standard Model which is still
exhilarating because it leaves all questions of consequence unanswered.


title: D_{sJ}^+(2317)\to D_s^+\pi^0 decay width

abstract:
  We use the QCD sum rules to analize the hadronic decay $D_{sJ}^{+}(2317)\to
D_s^+\pi^0$, in the hypotesis that the $D_{sJ}^{+}(2317)$ can be identified as
a four-quark state. We use a diquak-antidiquark current and work to the order
of $m_s$ in full QCD, without relying on $1/m_c$ expansion. We find that the
partial decay width of the hadronic isospin violating mode is proportional to
the isovector quark condensate, $\langle0|\bar{d}d-\bar{u}u|0\rangle$. The
estimated partial decay width is of the order of 6 keV.


title: Physics Reach of Electron-Capture Neutrino Beams

abstract:
  To complete the picture of neutrino oscillations two fundamental parameters
need to be measured, theta13 and delta. The next generation of long baseline
neutrino oscillation experiments -superbeams, betabeams and neutrino factories-
indeed take aim at measuring them. Here we explore the physics reach of a new
candidate: an electron-capture neutrino beam. Emphasis is made on its
feasibility thanks to the recent discovery of nuclei that decay fast through
electron capture, and on the interplay with a betabeam (its closest relative).


title: Charge screening effect in the hadron-quark mixed phase

abstract:
  The Coulomb interaction effect and the surface effect are consistently taken
into account in the hadron-quark mixed phase. These two finite-size effects
greatly change the properties of the mixed phase and restrict its density
region. In particular, the charge screening effect and the rearrangement of the
charged particles are elucidated. Keeping the Gibbs conditions throughout the
numerical procedure, we show the Maxwell construction effectively regain the
physical meaning and the equation of state becomes similar to that given by the
Maxwell construction.


title:
Gauge invariance of elementary particle processes taking place in
  presence of a background magnetic field

abstract:
  Elementary particle scatterings and decays in presence of a background
magnetic field are very common in physics, specially after the observation that
the core of the neutron stars can sustain a magnetic field of the order of
$10^{13} {\rm G}$. The important point about these calculations is that they
are done in a background of a gauge field and as a result the calculations are
prone to gauge arbitrariness. In this work we will investigate how this gauge
arbitrariness is eradicated in processes where the initial and final particles
taking part in the interactions are electrically neutral. Some comments on
those processes where the initial or final state consists of electrically
charged particles is presented at the end of the article.


title: The Standard Model of Particle Physics

abstract:
  A concise introduction to the Standard Model of fundamental particle
interactions is presented.


title: Soft dynamics of large transverse momentum processes

abstract:
  We discuss the point that the processes with high transverse momenta could
have a nonperturbative origin. This discussion is motivated by the fact that
there are several experimental indications that such processes can originate
from soft dynamics. The model combined with unitarity and impact parameter
picture provides simple mechanism for the hadron production and reproduces
power like dependence of the differential cross-sections in such processes at
high transverse momenta and exponential behavior at small values of p_t. This
model can be used for support of the argument that the soft dynamics can be
responsible for large transverse momenta processes.


title: The Thermal Model and the Transition from Baryonic to Mesonic Freeze-Out

abstract:
  The present status of the thermal model is reviewed and the recently
discovered sharp peak in the $K^+/\pi^+$ ratio is discussed in this framework.
It is shown that the rapid change is related to a transition from a baryon
dominated hadronic gas to a meson dominated one. Further experimental tests to
clarify the nature of the transition are discussed. In the thermal model the
corresponding maxima in the Xi/pi and Omega/pi ratios occur at slightly
different beam energies.


title:
Heavy-to-light ratios as a test of medium-induced energy loss at RHIC
  and the LHC

abstract:
  The ratio of nuclear modification factors of high-$p_T$ heavy-flavored mesons
tolight-flavored hadrons (heavy-to-light ratio) is shown to be a sensitive tool
to test medium-induced energy loss at RHIC and LHC energies. Heavy-to-light
ratios of $D$ mesons at RHIC in the region $7<p_T<12$ GeV, and of $D$ and $B$
mesons at the LHC in the region $10<p_T<20$ GeV, are proposed for such a test.
Finally, the different contributions to the nuclear modification factor for
electrons at RHIC are analyzed. Preliminary PHENIX and STAR data are compatible
with radiative energy loss provided the contribution of electrons from beauty
decays is small compared to that from charm.


title: Quantum Version of Gauge Invariance and Nucleon Internal Structure

abstract:
  The conflict between cononical commutation relation and gauge invariance,
which both the momentum and angular momentum of quark and gluon should satisfy,
is clarified. The quantum version of gauge invariance is studied. The gauge
independence of the matrix elements of quark momentum and angular momentum
operators between physical states are proved. We suggest to use the canonical
quark momentum and angular momentum distributions to describe the nucleon
internal structure in order to establish an internal consistent description of
hadron spectroscopy and hadron structure. The same problem for the atomic
spectroscopy and structure is discussed.


title: Do L3 data indicate the existence of an isotensor meson ?

abstract:
  The QCD analysis of the hard exclusive production of $\rho^+\rho^-$ and
$\rho^0\rho^0$ mesons in two photon collisions shows that the recent
experimental data obtained by the L3 Collaboration at LEP can be understood as
a signal for the existence of an exotic isotensor resonance with a mass around
$1.5 {\rm GeV}$.


title:
Radiative return via electron pair production: Monte Carlo simulation of
  the process e+ e- --> pi+ pi- e+ e-

abstract:
  Contributions from the reaction e+e- --> pi+pi- e+e- to the pion form factor
measurement via radiative return method are discussed basing on the results of
a Monte Carlo generator (EKHARA). The generator contains contributions from the
initial and final state emission of a e+e- pair from e+e- --> pi+pi- production
diagrams and the pi+pi- pair production from space-like and time-like Bhabha
diagrams. A detailed study is performed for the Phi- factory energy. Tests of
the generation procedure are also presented.


title: Could Spin-Charge Separation be the Source of Confinement?

abstract:
  Yang-Mills gauge field with gauge group SU(2) decomposes into a single charge
neutral complex vector, and two spinless charged scalar fields. At high
energies these constituents are tightly confined into each other by a compact
U(1) interaction, and the Yang-Mills Lagrangian describes the dynamics of
asymptotically free massless gauge vectors. But in a low energy and finite
density environment the interaction between the constituents can become weak,
and a spin-charge separation may occur. We suggest that the separation between
the spin and charge with the ensuing condensation of the charged scalars takes
place when the Yang-Mills theory enters confinement. The confining phase
becomes then surprisingly similar to the superconducting phase of a high-$T_c$
superconductor.


title: A New Look at an Old Mass Relation

abstract:
  New data from neutrino oscillation experiments motivate us to extend a
successful mass relation for the charged leptons to the other fundamental
fermions. This new universal relation requires a Dirac mass around 3 10^-2 eV
for the lightest neutrino and rules out a maximal atmospheric mixing. It also
suggests a specific decomposition of the CKM mixing matrix.


title: Dispersive approach to the axial anomaly and nonrenormalization theorem

abstract:
  Anomalous triangle graphs for the divergence of the axial-vector current are
studied using the dispersive approach generalized for the case of higher orders
of perturbation theory. The validity of this procedure is proved up to two-loop
level. By direct calculation in the framework of dispersive approach we have
obtained that the two-loop AVV amplitude is equal to zero. According to the
Vainshtein's theorem the transversal part of the anomalous triangle is not
renormalized in the chiral limit. We generalize this theorem for tha case of
finite fermion mass in the triangle loop.


title: Observable Neutron Antineutron Oscillation in High Scale Seesaw Models

abstract:
  We discuss a realistic high scale ($v_{BL}\sim 10^{12}$ GeV) supersymmetric
seesaw model based on the gauge group $SU(2)_L\times SU(2)_R\times SU(4)_c$
where neutron-anti-neutron oscillation can occur at an observable rate. This is
contrary to the naive dimensional arguments which say that
$\tau_{N-\bar{N}}\propto v_{BL}^5$ and is therefore unobservable if the seesaw
scale $v_{BL}\geq 10^{5}$ GeV. Two reasons for the enhanced rate in our model
are: (i) accidental global symmetries which keep some of the diquark Higgs
masses at the weak scale and (ii) a new supersymmetric contribution from a
lower dimensional operator. The net result is that $\tau_{N-\bar{N}}\propto
v_{BL}^2 v^3_{wk}$ rather than $v^5_{BL}$, causing the enhancement. The model
can also explain the origin of matter via leptogenesis and is testable at LHC
where the light diquark states can be produced.


title: A Weibel Instability in the Melting Color Glass Condensate

abstract:
  Based on hep-ph/0510121, we discuss further the numerical study of classical
SU(2) 3+1-D Yang-Mills equations for matter produced in a high energy heavy ion
collision. The growth of the amplitude of fluctuations as $\exp{(\Gamma
\sqrt{g^2\mu \tau})}$ (where $g^2\mu$ is a scale arising from the saturation of
gluons in the nuclear wavefunction) is shown to be robust over a wide range of
initial amplitudes that violate boost invariance. We argue that this growth is
due to a non-Abelian Weibel instability, the scale of which is set by a
dynamically generated plasmon mass. We find good agreement when we relate
$\Gamma$ to the prediction from kinetic theory.


title: Baryon Spectroscopy and the Constituent Quark Model

abstract:
  We explore further the idea that the lattice QCD data for hadron properties
in the region m_\pi^2 > 0.2 GeV^2 can be described by the constituent quark
model. This leads to a natural explanation of the fact that nucleon excited
states are generally stable for pion masses greater than their physical
excitation energies. Finally we apply these same ideas to the problem of how
pentaquarks might behave in lattice QCD, with interesting conclusions.


title: The Super-little Higgs

abstract:
  Supersymmetry combined with little-Higgs can render the Higgs vev
super-little, providing models of electroweak symmetry breaking free from
fine-tunings. We discuss the difficulties that arise in implementing this idea
and propose one simple successful model. Thanks to appropriately chosen Higgs
representations, D-terms give no tree-level mass term to the Goldstone. The
fermion representations are anomaly free, generation independent and embeddable
into an SU(6) GUT. A simple mechanism provides the large top quark mass.


title:
DGLAP evolution of truncated moments of parton densities within two
  different approaches

abstract:
  We solve the LO DGLAP QCD evolution equation for truncated Mellin moments of
the nucleon nonsinglet structure function. The results are compared with those,
obtained in the Chebyshev-polynomial approach for $x$-space solutions.
Computations are performed for a wide range of the truncation point
$10^{-5}\leq x_0\leq 0.9$ and $1\leq Q^2\leq 100 {\rm GeV}^2$. The agreement is
perfect for higher moments ($n\geq 2$) and not too large $x_0$ ($x_0\leq 0.1$),
even for a small number of terms in the truncated series (M=4). The accuracy of
the truncated moments method increases for larger $M$ and decreases very slowly
with increasing $Q^2$. For M=30 the relative error in a case of the first
moment at $x_0\leq 0.1$ and $Q^2=10 {\rm GeV}^2$ doesn't exceed 5%
independently on the shape of the input parametrisation. This is a quite
satisfactory result. Using the truncated moments approach one can avoid
uncertainties from the unmeasurable $x\to 0$ region and also study scaling
violations without making any assumption on the shape of input parametrisation
of parton distributions. Therefore the method of truncated moments seems to be
a useful tool in further QCD analyses.


title: Fermion Mixing and Soft Leptogenesis in a SUSY SO(10) x SU(2)_F Model

abstract:
  We have constructed a SUSY SO(10) x SU(2)_F model in which a set of symmetric
mass matrices with five texture zeros (having 11 parameters) leads to 22
measurable fermion masses, mixing angles and CP phases, all in agreement with
available experimental data within one sigma. The LMA solution for solar
neutrinos is obtained as well as neutrino mixing angles and absolute values of
neutrino masses. We have investigated the possibility of baryogenesis resulting
from soft leptogenesis. We find that, with soft SUSY masses assuming their
natural values of the order of a TeV, the observed baryon asymmetry in the
Universe can be accommodated in our model. Unlike models with lop-sided
textures which give rise to a dangerously large decay rate for mu -> e + gamma,
the decay rate we get is much suppressed and yet it is large enough to be
accessible to the next generation of experiments.


title:
Hadronic corrections to muon anomalous magnetic moment within the
  instanton liquid model

abstract:
  The current status of the muon anomalous magnetic moment problem is briefly
presented. The corrections to muon anomaly coming from the effects of hadronic
vacuum polarization, Z*\gamma\gamma* effective vertex and light-by-light
scattering are estimated within the instanton model of QCD vacuum.


title:
Bilarge neutrino mixing from supersymmetry with high-scale
  nonrenormalizable interactions

abstract:
  We suggest a supersymmetric (SUSY) explanation of neutrino masses and mixing,
where nonrenormalizable interactions in the hidden sector generate lepton
number violating Majorana mass terms for both right-chiral sneutrinos and
neutrinos. It is found necessary to start with a superpotential including an
array of gauge singlet chiral superfields. This leads to nondiagonal $\Delta L
= 2$ mass terms and almost diagonal SUSY breaking $A$-terms. As a result, the
observed pattern of bilarge mixing can be naturally explained by the
simultaneous existence of the seesaw mechanism and radiatively induced masses.
Allowed ranges of parameters in the gauge singlet sector are delineated,
corresponding to each of the cases of normal hierarchy, inverted hierarchy and
degenerate neutrinos.


title: Phase Structure and Instability Problem in Color Superconductivity

abstract:
  We address the phase structure of color superconducting quark matter at high
quark density. Under the electric and color neutrality conditions there appear
various phases as a result of the Fermi surface mismatch among different quark
flavors induced by finite strange quark mass; the color-flavor locked (CFL)
phase where quarks are all energy gapped, the u-quark superconducting (uSC)
phase where u-quarks are paired with either d- or s-quarks, the d-quark
superconducting (dSC) phase that is the d-quark analogue of the uSC phase, the
two-flavor superconducting (2SC) phase where u- and d-quarks are paired, and
the unpaired quark matter (UQM) that is normal quark matter without pairing.
Besides these possibilities, when the Fermi surface mismatch is large enough to
surpass the gap energy, the gapless superconducting phases are expected. We
focus our discussion on the chromomagnetic instability problem related to the
gapless CFL (gCFL) onset and explore the instability regions on the phase
diagram as a function of the temperature and the quark chemical potential. We
sketch how to reach stable physical states inside the instability regions.


title: Inflation With A Realistic SO(10) Model

abstract:
  We implement inflation within a realistic supersymmetric SO(10) model in
which the doublet-triplet splitting is realized through the Dimopoulos-Wilczek
mechanism, the MSSM $\mu$ problem is resolved, and higgsino mediated dimension
five nucleon decay is heavily suppressed. The cosmologically unwanted
topological defects are inflated away, and from $\delta T/ T$, the $B-L$
breaking scale is estimated to be of order $10^{16}-10^{17}$ GeV. Including
supergravity corrections, the scalar spectral index $n_s = 0.99\pm 0.01$, with
$|dn_s/ d{\rm ln}k| \lapproxeq 10^{-3}$.


title: Extracting the unitarity angle gamma in Bs to D0 h0, D0bar h0 Decays

abstract:
  The recently observed color-suppressed B0bar to D0 pi0, D0 eta, D0 eta', Ds+
K-, D0 K0bar, D0 rho0 and D0 omega decay modes all have rates larger than
expected. The color-suppressed Bs to D0 phi, D0bar phi modes, which were
suggested for the extraction of the unitarity angle gamma in the Gronau-London
method, could be larger than the previous estimation by one order of magnitude.
Several new theoretical clean modes in Bs decays are suggested for the
extraction of gamma. The proposed Bs to D0 h0, D0bar h0 decay modes with h0 =
pi0, eta, eta', rho0, omega in addition to h0 = phi are free from penguin
contributions. Their decay rates can be estimated from the observed
color-suppressed B0bar to D0 h0 rates through SU(3) symmetry. A combined study
of these D0 h0, D0bar h0 modes in addition to the D0 phi, D0bar phi modes is
useful in the extraction of gamma in the Bs system without involving the
Bs-Bsbar mixing. Since the b to u and b to c transitions belong to the same
topological diagram, the relative strong phase is likely to be small. In this
case, the CP asymmetries are suppressed and the untagged rates are very useful
in the gamma extraction.


title: Unusual condensates in quark and atomic systems

abstract:
  In these lectures we discuss condensates which are formed in quark matter
when it is squeezed and in a gas of fermionic atoms when it is cooled. The
behavior of these two seemingly very different systems reveals striking
similarities. In particular, in both systems the Bose-Einstein condensate to
Bardeen--Cooper-Schrieffer (BEC-BCS) crossover takes place.


title: SUGRA interactions within flavor triplets

abstract:
  A specific new quark permits that flavor generations constitute a
representation of the 3-dimensional SU(3) symmetry that characterizes the Z(3)
orbifold. In this context, color and supergravity bind triplets and 4-tuplets
into composite fields of spin 3/2 and spin 2; and the symmetry E(8) that
characterizes (the observable sector of) 10-spacetime is interpreted as having
reduced to SU(5)XSU(3), where SU(3) refers to the 3-dimensional symmetry
described above and SU(5) consists of colors and of isotopic spin classes that
are devoid of color and hypercharge. In this context, supergravity interactions
occur to color bound quarks that are experiencing asymptotic freedom within
triplets. Quark-lepton transitions are produced, but quickly reverse,
preserving the triplets. The symmetry consisting of six quark classes and six
lepton classes is also maintained because the predicted quark is an anomalous,
left-handed version of the strange quark.


title: QCD sum rules for the anti-charmed pentaquark

abstract:
  We present a QCD sum rule analysis for the anti-charmed pentaquark state with
and without strangeness. While the sum rules for most of the currents are
either non-convergent or dominated by the $DN$ continuum, the one for the
non-strange pentaquark current composed of two diquarks and an antiquark, is
convergent and has a structure consistent with a positive parity pentaquark
state after subtracting out the $DN$ continuum contribution. Arguments are
presented on the similarity between the result of the present analysis and that
based on the constituent quark models, which predict a more stable pentaquark
states when the antiquark is heavy.


title:
Lepton flavour violating Higgs Boson decays, tau --> mu gamma and B(s)
  --> mu+mu- in the constrained MSSM+NR with large tan beta

abstract:
  Realistic predictions are made for the rates of lepton flavour violating
Higgs boson decays, tau --> mu gamma, mu --> e gamma, Bs --> mu+mu-, Bs --> tau
mu and tau --> 3mu, via a top-down analysis of the Minimal Supersymmetric
Standard Model(MSSM) constrained by SU(5) unification with right-handed
Neutrinos and large tan beta. The third family neutrino Yukawa coupling is
chosen to be of order 1, in this way our model bares a significant resemblance
to supersymmetric SO(10). In this framework the large PMNS mixings result in
potentially large lepton flavour violation. Our analysis predicts tau --> mu
gamma and mu --> e gamma rates in the region (10^{-8}-10^{-6}) and
(10^{-15}-10^{-14}) respectively. We also show that the rates for lepton
flavour violating Higgs decays can be as large as 10^{-7}. The non-decoupling
nature of H --> tau mu is observed which leads to its decay rate becoming
comparable to that for tau --> mu gamma for large values of m_0 and M_1/2. We
also find that the present bound on Bs --> mu+mu- is an important constraint on
the rate of lepton flavour violating Higgs decays. The recently measured
Bs-Bsbar mixing parameter Delta Ms is also investigated.


title:
Distinguishing split supersymmetry in Higgs signals at the Large Hadron
  Collider

abstract:
  We examine the possibility of detecting signals of split supersymmetry in the
loop-induced decay h --> gamma gamma of the Higgs boson at the Large Hadron
Collider, where charginos, as surviving light fermions of the supersymmetric
spectrum, can contribute in the loop. We perform a detailed study of
uncertainties in various parameters involved in the analysis, and thus the net
uncertainty in the standard model prediction of the rate. After a thorough scan
of the parameter space, taking all constraints into account, we conclude that
it will be very difficult to infer about split supersymmetry from Higgs signals
alone.


title:
Four-Quark Mesons in Non-leptonic B Decays--Could They Resolve Some Old
  Puzzles?

abstract:
  We point out that non-leptonic B decays driven by b-->ccbar s should provide
a favourable environment for the production of hidden charm diquark-antidiquark
bound states that have been suggested to explain the resonances with masses
around 4 GeV recently observed by BaBar and BELLE. Studying their relative
abundances in non-leptonic B decays can teach us novel lessons about their
structure and the strong interactions. Through their decay into psi they can
provide a natural explanation of the excess of B-->psi X observed for p_psi < 1
GeV. Other phenomenological consequences are mentioned as well.