title:
Magnetically-induced buckling of a whirling conducting rod with
  applications to electrodynamic space tethers

abstract:
  We study the effect of a magnetic field on the behaviour of a slender
conducting elastic structure, motivated by stability problems of electrodynamic
space tethers. Both statical (buckling) and dynamical (whirling) instability
are considered and we also compute post-buckling configurations. The equations
used are the geometrically exact Kirchhoff equations. Magnetic buckling of a
welded rod is found to be described by a surprisingly degenerate bifurcation,
which is unfolded when both transverse anisotropy of the rod and angular
velocity are considered. By solving the linearised equations about the (quasi-)
stationary solutions we find various secondary instabilities. Our results are
relevant for current designs of electrodynamic space tethers and potentially
for future applications in nano- and molecular wires.


title: Optical Properties of III-Mn-V Ferromagnetic Semiconductors

abstract:
  We review the first decade of extensive optical studies of ferromagnetic,
III-Mn-V diluted magnetic semiconductors. Mn introduces holes and local moments
to the III-V host, which can result in carrier mediated ferromagnetism in these
disordered semiconductors. Spectroscopic experiments provide direct access to
the strength and nature of the exchange between holes and local moments; the
degree of itineracy of the carriers; and the evolution of the states at the
Fermi energy with doping. Taken together, diversity of optical methods reveal
that Mn is an unconventional dopant, in that the metal to insulator transition
is governed by the strength of the hybridization between Mn and its p-nictogen
neighbor. The interplay between the optical, electronic and magnetic properties
of III-Mn-V magnetic semiconductors is of fundamental interest and may enable
future spin-optoelectronic devices.


title:
Scaling Limits for Width Two Partially Ordered Sets: The Incomparability
  Window

abstract:
  We study the structure of a uniformly randomly chosen partial order of width
2 on n elements. We show that under the appropriate scaling, the number of
incomparable elements converges to the height of a one dimensional Brownian
excursion at a uniformly chosen random time in the interval [0,1], which
follows the Rayleigh distribution.


title: Emergency Centre Organization and Automated Triage System

abstract:
  The excessive rate of patients arriving at accident and emergency centres is
a major problem facing South African hospitals. Patients are prioritized for
medical care through a triage process. Manual systems allow for inconsistency
and error. This paper proposes a novel system to automate accident and
emergency centre triage and uses this triage score along with an artificial
intelligence estimate of patient-doctor time to optimize the queue order. A
fuzzy inference system is employed to triage patients and a similar system
estimates the time but adapts continuously through fuzzy Q-learning. The
optimal queue order is found using a novel procedure based on genetic
algorithms. These components are integrated in a simple graphical user
interface. Live tests could not be performed but simulations reveal that the
average waiting time can be reduced by 48 minutes and priority is given to
urgent patients


title:
Room temperature surface piezoelectricity in SrTiO3 ceramics via
  piezoresponse force microscopy

abstract:
  SrTiO3 ceramics are investigated by piezoresponse force microscopy.
Piezoelectric contrast is observed on polished surfaces in both vertical and
lateral regimes and depends on the grain orientation varying in both sign
(polarization direction) and amplitude. The observed contrast is attested to
the surface piezoelectricity due to flexoelectric effect (strain
gradient-induced polarization) caused by the surface relaxation. The estimated
flexoelectric coefficient is approximately one order of magnitude smaller as
compared to those recently measured in SrTiO3 single crystals. The observed
enhancement of piezoresponse signal at the grain boundaries is explained by the
dipole moments associated with inhomogeneous distribution of oxygen vacancies.


title: Non-relativistic Branes

abstract:
  We construct gravitational non-relativistic brane solutions of type IIA/IIB
string theories and M-theory and their near-horizon geometries. The
non-relativistic M2 and M5-brane metrics have Schroedinger symmetries with
dynamical exponent z=3/2 and z=3, respectively, whereas the known D3-brane
solution has z=2. The non-relativistic D-brane, NS5-brane, F-string and KK
monopole metrics have asymptotically space and time translations, space
rotations, Galilean symmetries and a particle number symmetry. We construct two
different gravitational backgrounds of a non-relativistic D1-D5 system, both
having asymptotically Schroedinger symmetry with exponent z=2. We study the
properties of the solutions and their phase diagram.


title: On the Origin of the 511 keV Emission in the Galactic Centre

abstract:
  Diffuse 511 keV line emission, from the annihilation of cold positrons, has
been observed in the direction of the Galactic Centre for more than 30 years.
The latest high-resolution maps of this emission produced by the SPI instrument
on INTEGRAL suggest at least one component of the emission is spatially
coincident with the distribution of ~70 luminous, low-mass X-ray binaries
detected in the soft gamma-ray band. The X-ray band, however, is generally a
more sensitive probe of X-ray binary populations. Recent X-ray surveys of the
Galactic Centre have discovered a much larger population (>4000) of faint, hard
X-ray point sources. We investigate the possibility that the positrons observed
in the direction of the Galactic Centre originate in pair-dominated jets
generated by this population of fainter accretion-powered X-ray binaries. We
also consider briefly whether such sources could account for unexplained
diffuse emission associated with the Galactic Centre in the microwave (the WMAP
`haze') and at other wavelengths. Finally, we point out several unresolved
problems in associating Galactic Centre 511 keV emission with the brightest
X-ray binaries.


title: Fixed Points of Quantum Gravity and the Renormalisation Group

abstract:
  We review the asymptotic safety scenario for quantum gravity and the role and
implications of an underlying ultraviolet fixed point. We discuss
renormalisation group techniques employed in the fixed point search, analyse
the main picture at the example of the Einstein-Hilbert theory, and provide an
overview of the key results in four and higher dimensions. We also compare
findings with recent lattice simulations and evaluate phenomenological
implications for collider experiments.


title:
Measurement of the dark matter velocity anisotropy profile in galaxy
  clusters

abstract:
  Dark matter particles form halos that contribute the major part of the mass
of galaxy clusters. The formation of these cosmological structures have been
investigated both observationally and in numerical simulations, which have
confirmed the existence of a universal mass profile. However, the dynamic
behaviour of dark matter in halos is not as well understood. We have used
observations of 16 equilibrated galaxy clusters to show that the random
velocities of dark matter particles are larger on average along the radial
direction than along the tangential, and that the magnitude of this velocity
anisotropy is radially varying. Our measurement implies that the collective
behaviour of dark matter particles is fundamentally different from that of
normal particles and the radial variation of the anisotropy velocity agrees
with the predictions of numerical simulation.


title: Top quark pair cross section measurement at ATLAS

abstract:
  An accurate determination of the top quark pair production cross section at
the LHC provides a valuable check of the Standard Model. Given the high
statistics which will be available (about one top quark pair per second, at a
luminosity of 10^33 cm^-2 s^-1), this check can be performed relatively fast
after the turn on of the LHC. The prospects for measuring the total top quark
pair cross section with the ATLAS detector during the initial period of LHC
running will be presented here. The cross section is determined in the single
lepton channel and in the dilepton channel.


title: Top Quark Mass in the Dilepton and Alljets Channels

abstract:
  Recent measurements of the top quark mass in the dilepton ($t\bar{t}\to
\bar{b}\ell^{-}\bar{\nu_{\ell}}b \ell^{'+}\nu^{'}_{\ell}$) and alljets
($t\bar{t}\to b\bar{b}q\bar{q}'q'\bar{q}$) decay channels from the CDF and D0
collaborations are presented. These decay channels provide unique challenges
from the lepton+jets decay channel. Results utilizing up to 2.8 fb$^{-1}$ of
$p\bar{p}$ collider data from the Fermilab Tevatron are discussed.


title:
The statistics of accelerations seen in radial velocity searches for
  planets

abstract:
  Radial velocity searches for extrasolar planets have discovered stars
undergoing slow accelerations. The accelerations are likely due to one or more
gas giant planets or brown dwarfs orbiting with period longer than the total
time span of observations. The stellar acceleration is proportional to the mass
of the companion divided by the square of its radius from the star. In this
paper we predict the distribution of accelerations using a Monte Carlo method
and assuming a semi-major axis and mass distribution for the companions. Radial
velocity surveys find that ~20 and 10% of stars surveyed exhibit accelerations
above ~10 and 25 m s^-1 yr^-1, respectively. We find that an extrapolation of
the size and period distribution found by radial velocity surveys within ~5 AU
or companion imaging surveys predicts too few systems with detectable
accelerations. The fractions of stars with accelerations above these values can
be matched if every star hosts a gas giant planet or brown dwarf with
semi-major axes between 4 and 20 AU or if a significant fraction (~70%) of
stars host 3 or more massive planets in this range. If brown dwarfs are not
discovered in imaging surveys then we would infer that there is a large
population of gas giant planets present with semi-major axes in the 5 to 30 AU
range.


title:
Multiwavelength Signatures of Cosmic Ray Acceleration by Young Supernova
  Remnants

abstract:
  An overview is given of multiwavelength observations of young supernova
remnants, with a focus on the observational signatures of efficient cosmic ray
acceleration. Some of the effects that may be attributed to efficient cosmic
ray acceleration are the radial magnetic fields in young supernova remnants,
magnetic field amplification as determined with X-ray imaging spectroscopy,
evidence for large post-shock compression factors, and low plasma temperatures,
as measured with high resolution optical/UV/X-ray spectroscopy. Special
emphasis is given to spectroscopy of post-shock plasma's, which offers an
opportunity to directly measure the post-shock temperature. In the presence of
efficient cosmic ray acceleration the post-shock temperatures are expected to
be lower than according to standard equations for a strong shock. For a number
of supernova remnants this seems indeed to be the case.


title: High Mass Resonance Searches at CDF

abstract:
  Recent searches for dijet, dielectron, and dimuon resonances by the CDF
Collaboration are presented. No evidence for a signal is found in any channel,
so 95% confidence level upper limits are set on the new particle production.


title: Beyond the Standard Model Neutral Higgs Searches at the Tevatron

abstract:
  We present an overview of the full range of Higgs searches in models beyond
the Standard Model at the Tevatron. This includes both searches for
Fermiophobic Higgs and for SUSY Higgs at high tan beta. No excess is seen in
the data, so model dependent limits are set.


title:
Simbol-X: A Formation Flight Mission with an Unprecedented Imaging
  Capability in the 0.5-80 Kev Energy Band

abstract:
  The discovery of X-ray emission from cosmic sources in the 1960s has opened a
new powerful observing window on the Universe. In fact, the exploration of the
X-ray sky during the 70s-90s has established X-ray astronomy as a fundamental
field of astrophysics. Today, the emission from astrophysical sources is by
large best known at energies below 10 keV. The main reason for this situation
is purely technical since grazing incidence reflection has so far been limited
to the soft X-ray band. Above 10 keV all the observations have been obtained
with collimated detectors or coded mask instruments. To make a leap step
forward in X-ray astronomy above 10 keV it is necessary to extend the principle
of focusing X ray optics to higher energies, up to 80 keV and beyond. To this
end, ASI and CNES are presently studying the implementation of a X-ray mission
called Simbol-X.
  Taking advantage of emerging technology in mirror manufacturing and
spacecraft formation flying, Simbol-X will push grazing incidence imaging up to
80 keV and beyond, providing a strong improvement both in sensitivity and
angular resolution compared to all instruments that have operated so far above
10 keV. This technological breakthrough will open a new high-energy window in
astrophysics and cosmology. Here we will address the problematic of the
development for such a distributed and deformable instrument. We will focus on
the main performances of the telescope, like angular resolution, sensitivity
and source localization. We will also describe the specificity of the
calibration aspects of the payload distributed over two satellites and
therefore in a not "frozen" configuration.


title: The canonical transformation and massive CSW vertices for MHV-SQCD

abstract:
  The similarity of massive CSW scalar vertices and quark vertices can be
understood using a kind of light-cone SUSY transformation presented in this
paper. We also show that the canonical transformation generating the MHV-SQCD
lagrangian, can be fixed by applying this light-cone SUSY transformation to the
canonical transformation for MHV-QCD obtained in paper arxiv:0805.0239. Most of
the massive CSW vertices for SQCD can also be pinned down in this way.


title: The Molecular Properties of Galactic HII Regions

abstract:
  We derive the molecular properties for a sample of 301 Galactic HII regions
including 123 ultra compact (UC), 105 compact, and 73 diffuse nebulae. We
analyze all sources within the BU-FCRAO Galactic Ring Survey (GRS) of 13CO
emission known to be HII regions based upon the presence of radio continuum and
cm-wavelength radio recombination line emission. Unlike all previous large area
coverage 13CO surveys, the GRS is fully sampled in angle and yet covers ~75
square degrees of the Inner Galaxy. The angular resolution of the GRS 46"
allows us to associate molecular gas with HII regions without ambiguity and to
investigate the physical properties of this molecular gas. We find clear CO/HII
morphological associations in position and velocity for ~80% of the nebular
sample. Compact HII region molecular gas clouds are on average larger than UC
clouds: 2.2' compared to 1.7'. Compact and UC HII regions have very similar
molecular properties, with ~5K line intensities and ~4 km/s line widths. The
diffuse HII region molecular gas has lower line intensities, ~3K, and smaller
line widths, ~3.5 km/s. These latter characteristics are similar to those found
for quiescent molecular clouds in the GRS. Our sample nebulae thus show
evidence for an evolutionary sequence wherein small, dense molecular gas clumps
associated with UC HII regions grow into older compact nebulae and finally
fragment and dissipate into large, diffuse nebulae.


title: A Global Event Description using Particle Flow with the CMS Detector

abstract:
  The CMS Detector consists of a large volume silicon tracker immersed in a
high four Tesla magnetic field, together with a high resolution/granularity
electromagnetic calorimeter and a nearly full solid angle coverage hadronic
calorimeter. Particle flow reconstruction provides a global pp-collision event
description by exploiting the combined information across all CMS
sub-detectors, optimizing the reconstruction and the identification of each
particle (photons, electrons, muons, unstable neutral hadrons, charged hadrons
and neutral hadrons) in an event. This summary introduces the CMS particle flow
algorithm, discusses the challenges associated with the LHC environment, and
presents some first example results in the context of hadronic decays of taus
as well as missing transverse energy.


title:
Effective Field calculations of the Energy Spectrum of the
  $\mathcal{PT}% $-Symmetric ($-x^{4}$) Potential

abstract:
  In this work, we show that the traditional effective field approach can be
applied to the $\mathcal{PT}$-symmetric wrong sign ($-x^{4}$) quartic
potential. The importance of this work lies in the possibility of its extension
to the more important $\mathcal{PT}$-symmetric quantum field theory while the
other approaches which use complex contours are not willing to be applicable.
We calculated the effective potential of the massless $-x^{4}$ theory as well
as the full spectrum of the theory. Although the calculations are carried out
up to first order in the coupling, the predicted spectrum is very close to the
exact one taken from other works. The most important result of this work is
that the effective potential obtained, which is equivalent to the Gaussian
effective potential, is bounded from below while the classical potential is
bounded from above. This explains the stability of the vacuum of the theory.
The obtained quasi-particle Hamiltonian is non-Hermitian but
$\mathcal{PT}$-symmetric and we showed that the calculation of the metric
operator can go perturbatively. In fact, the calculation of the metric operator
can be done even for higher dimensions (quantum field theory) which, up till
now, can not be calculated in the other approaches either perturbatively or in
a closed form due to the possible appearance of field radicals. Moreover, we
argued that the effective theory is perturbative for the whole range of the
coupling constant and the perturbation series is expected to converge rapidly
(the effective coupling $g_{eff}={1/6}$).


title:
Next-to-the-Leading-Order Hadronic Corrections for Standard Model and
  Beyond

abstract:
  We explore various extensions of computational packages such as Feynarts and
FormCalc in application to calculation of the electron-proton scattering
asymmetries relevant to the G0 and QWeak experiments. Our calculations where
completed up to the Next-to-the-Leading-Order (one-loop) using the dipole form
factor in hadronic vertices. We saw no significant difference between monopole
and dipole type of asymmetry over the range of Q^2 = 0.1 - 1.0 GeV^2. Our
results are in the good agreement with theoretical predictions by the G0
collaboration, but show discrepancy from the experiment. This discrepancy from
the experimental results is due to the strange content of the proton and
possibly new physics as well.


title: Cosmography with Galaxy Clusters

abstract:
  In the present work we focus on future experiments using cluster abundance
observations to constraint the Dark Energy equation of state parameter, w. To
obtain tight constraints from this kind of experiment, a reliable sample of
galaxy clusters must be obtained from deep and wide-field images. We therefore
present the computational environment (2DPHOT) that allow us to build the
galaxy catalog from the images and the Voronoi Tessellation cluster finding
algorithm that we use to identify the galaxy clusters on those catalogs. To
test our pipeline with data similar in quality to what will be gathered by
future wide field surveys, we process images from the Deep fields obtained as
part of the LEGACY Survey (four fields of one square degree each, in five
bands, with depth up to r'=25). We test our cluster finder by determining the
completeness and purity of the finder when applied to mock galaxy catalogs made
for the Dark Energy Survey cluster finder comparison project by Risa Wechsler
and Michael Busha. This procedure aims to understand the selection function of
the underlying dark matter halos.


title: Search for Anomalous Production of Photon+Jets

abstract:
  Many new physics models predict mechanisms that could produce a photon and
jets signature. We search in the photon + jets channel, independent of any
model, for new physics using CDF Run II data collected at the Fermilab Tevatron
from p-pbar collisions at a center of mass energy of 1.96 TeV. A variety of
techniques are applied to estimate the standard model expectation and
non-collision backgrounds. We examine several kinematic distributions including
transverse energy of the photon and invariant masses for discrepancies with the
standard model.


title:
Empirical Models of Pressure and Density in Saturn's Interior:
  Implications for the Helium Concentration, its Depth Dependence, and Saturn's
  Precession Rate

abstract:
  We present 'empirical' models (pressure vs. density) of Saturn's interior
constrained by the gravitational coefficients J_2, J_4, and J_6 for different
assumed rotation rates of the planet. The empirical pressure-density profile is
interpreted in terms of a hydrogen and helium physical equation of state to
deduce the hydrogen to helium ratio in Saturn and to constrain the depth
dependence of helium and heavy element abundances. The planet's internal
structure (pressure vs. density) and composition are found to be insensitive to
the assumed rotation rate for periods between 10h:32m:35s and 10h:41m:35s. We
find that helium is depleted in the upper envelope, while in the high pressure
region (P >~ 1 Mbar) either the helium abundance or the concentration of
heavier elements is significantly enhanced. Taking the ratio of hydrogen to
helium in Saturn to be solar, we find that the maximum mass of heavy elements
in Saturn's interior ranges from ~ 6 to 20 M_Earth. The empirical models of
Saturn's interior yield a moment of inertia factor varying from 0.22271 to
0.22599 for rotation periods between 10h:32m:35s and 10h:41m:35s, respectively.
A long-term precession rate of about 0.754" yr^{-1} is found to be consistent
with the derived moment of inertia values and assumed rotation rates over the
entire range of investigated rotation rates. This suggests that the long-term
precession period of Saturn is somewhat shorter than the generally assumed
value of 1.77 x 10^6 years inferred from modeling and observations.


title: Searches for New Physics at CDF

abstract:
  In this note we present the results of several searches for physics beyond
the standard model. All final states use 2 inverse fb\of data produced at
Tevatron in p-pbar collisions at 1.96 TeV and collected by the CDF Run II
detector. None of the analysis is heavily optimized for any specific model. All
signatures contain missing transverse energy in the final state and all, except
for one, have at least one photon in the final state. Unfortunately, no
interesting excesses of events over the SM prediction are observed in any final
states, except may be for the last one.


title:
Can a strong magnetic background modify the nature of the chiral
  transition in QCD?

abstract:
  The presence of a strong magnetic background can modify the nature and the
dynamics of the chiral phase transition at finite temperature: for high enough
magnetic fields, comparable to the ones expected to be created in noncentral
high-energy heavy ion collisions at RHIC and the LHC, the original crossover is
turned into a first-order transition. We illustrate this effect within the
linear sigma model with quarks to one loop in the ${\rm MS}$ scheme for
$N_{f}=2$.


title: The SNO+ Experiment

abstract:
  The SNO+ experiment is the follow-up to the Sudbury Neutrino Observatory
(SNO). The heavy water that was in SNO will be replaced with a liquid
scintillator of linear alkylbenzene (plus fluor). SNO+ has many physics goals
including detecting pep and CNO solar neutrinos, detecting geo-neutrinos,
studying reactor neutrino oscillations, serving as a supernova neutrino
detector and carrying out a search for neutrinoless double beta decay by adding
neodymium to the liquid scintillator. Since a large amount of 150Nd isotope can
be added to SNO+, a competitive search would be possible, with sensitivity
below 100 meV using natural Nd and sensitivity below 40 meV with enriched
neodymium.


title:
An Efficient Quantum Algorithm for the Hidden Subgroup Problem over
  Weyl-Heisenberg Groups

abstract:
  Many exponential speedups that have been achieved in quantum computing are
obtained via hidden subgroup problems (HSPs). We show that the HSP over
Weyl-Heisenberg groups can be solved efficiently on a quantum computer. These
groups are well-known in physics and play an important role in the theory of
quantum error-correcting codes. Our algorithm is based on non-commutative
Fourier analysis of coset states which are quantum states that arise from a
given black-box function. We use Clebsch-Gordan decompositions to combine and
reduce tensor products of irreducible representations. Furthermore, we use a
new technique of changing labels of irreducible representations to obtain
low-dimensional irreducible representations in the decomposition process. A
feature of the presented algorithm is that in each iteration of the algorithm
the quantum computer operates on two coset states simultaneously. This is an
improvement over the previously best known quantum algorithm for these groups
which required four coset states.


title: Double Beta Decay: Scintillators

abstract:
  Scintillator detectors can be used in experiments searching for neutrinoless
double beta decay. A wide variety of double beta decay candidate isotopes can
be made into scintillators or can be loaded into scintillators. Experimental
programs developing liquid xenon, inorganic crystals, and Nd-loaded liquid
scintillator are described in this review. Experiments with 48Ca and 150Nd
benefit from their high endpoint which places the neutrinoless double beta
decay signal above most backgrounds from natural radioactivity.


title: Dynamical conductivity of ungated suspended graphene

abstract:
  Frequency dependent conductivity of Coulomb interacting massless Dirac
fermions coupled to random scalar and random vector potentials is found as a
function of frequency in the regime controlled by a line of fixed points. Such
model provides a low energy description of a weakly rippled suspended graphene.
The main finding is that at the neutrality point the a.c. conductivity is not
frequency independent and may either increase or decrease with decreasing
frequency, depending on the values of the disorder variances $\Delta_{\phi}$,
$\Delta_{A}$ and the Coulomb coupling $\alpha=e^2/(\eps v_F)$. The low
frequency behavior is characterized by the values of two dimensionless
parameters $\gamma=\Delta_{\phi}/\alpha^2$ and $\Delta_A$ which are RG
invariants, and for small values of which the electron-hole "puddles" are
effectively screened making the results asymptotically exact.


title: Neutrino Oscillation Measurements with IceCube

abstract:
  We present preliminary results for a neutrino oscillation analysis in
progress on data collected with the IceCube 22-string detector during 2007 and
2008. The goal of this analysis is to measure muon neutrino disappearance as a
function of energy for a constant baseline length of the diameter of the Earth
by studying vertically up-going muon neutrinos. At this baseline disappearance
effects are expected to become sizable at neutrino energies below 100 GeV. This
energy range has not been previously explored with IceCube, however due to
IceCube's vertical geometry there is some sensitivity for this specific class
of events. Based on preliminary selection criteria, we show that IceCube has
the potential to detect these events and we estimate the sensitivity to
determining oscillation parameters.


title:
Search for Supersymmetry Using the Trilepton Signature of
  Chargino-Neutralino Production

abstract:
  We use the three lepton and missing energy "trilepton" signature to search
for chargino-neutralino production with $2.0 fb^{-1}$ of integrated luminosity
collected by the CDF II experiment at the Tevatron $p\bar{p}$ collider. We
expect approximately 11 supersymmetric events for a specific choice of
parameters of the mSUGRA model, but our observation of 7 events is consistent
with the standard model expectation of 6.4 events. We constrain the mSUGRA
model of supersymmetry and rule out chargino masses up to $145 GeV/c^2$ for a
specific choice of parameters.


title:
The kinematic signature of damped Lyman alpha systems: Using the D-index
  to screen for high column density HI absorbers

abstract:
  Using a sample of 21 damped Lyman alpha systems (DLAs) and 35 sub-DLAs, we
evaluate the D-index = EW / Delta v x 1000 from high resolution spectra of the
MgII lambda 2796 profile. This sample represents an increase in sub-DLA D-index
statistics by a factor of four over the sample used by Ellison (2006). We
investigate various techniques to define the velocity spread (Delta v) of the
MgII line to determine an optimal D-index for the identification of DLAs. The
success rate of DLA identification is 50 -- 55%, depending on the velocity
limits used, improving by a few percent when the column density of FeII is
included in the D-index calculation. We recommend the set of parameters that is
judged to be most robust, have a combination of high DLA identification rate
(57%) and low DLA miss rate (6%) and most cleanly separate the DLAs and
sub-DLAs (Kolmogorov-Smirnov probability 0.5%). These statistics demonstrate
that the D-index is the most efficient technique for selecting low redshift DLA
candidates: 65% more efficient than selecting DLAs based on the equivalent
widths of MgII and FeII alone. We also investigate the effect of resolution on
determining the N(HI) of sub-DLAs. We convolve echelle spectra of sub-DLA Lya
profiles with Gaussians typical of the spectral resolution of instruments on
the Hubble Space Telescope and compare the best fit N(HI) values at both
resolutions. We find that the fitted HI column density is systematically
over-estimated by ~ 0.1 dex in the moderate resolution spectra compared to the
best fits to the original echelle spectra. This offset is due to blending of
nearby Lya clouds that are included in the damping wing fit at low resolution.


title: Dust in the inner regions of debris disks around A stars

abstract:
  We present infrared interferometric observations of the inner regions of two
A-star debris disks, beta Leo and zeta Lep, using the FLUOR instrument at the
CHARA interferometer on both short (30 m) and long (>200 m) baselines. For the
target stars, the short baseline visibilities are lower than expected for the
stellar photosphere alone, while those of a check star, delta Leo, are not. We
interpret this visibility offset of a few percent as a near-infrared excess
arising from dust grains which, due to the instrumental field of view, must be
located within several AU of the central star. For beta Leo, the near-infrared
excess producing grains are spatially distinct from the dust which produces the
previously known mid-infrared excess. For zeta Lep, the near-infrared excess
may be spatially associated with the mid-infrared excess producing material. We
present simple geometric models which are consistent with the near and
mid-infrared excess and show that for both objects, the near-infrared producing
material is most consistent with a thin ring of dust near the sublimation
radius with typical grain sizes smaller than the nominal radiation pressure
blowout radius. Finally, we discuss possible origins of the near-infrared
emitting dust in the context of debris disk evolution models.


title:
Interlacing and non-orthogonality of spectral polynomials for the Lam\'e
  operator

abstract:
  Polynomial solutions to the generalized Lam\'e equation, the Stieltjes
polynomials, and the associated Van Vleck polynomials have been studied since
the 1830's in various contexts including the solution of Laplace equations on
an ellipsoid. Recently there has been renewed interest in the distribution of
the zeros of Van Vleck polynomials as the degree of the corresponding Stieltjes
polynomials increases. In this paper we show that the zeros of Van Vleck
polynomials corresponding to Stieltjes polynomials of successive degrees
interlace. We also show that the spectral polynomials formed from the Van Vleck
zeros are not orthogonal with respect to any weight. This furnishes a
counterexample, coming from a second order differential equation, to the
converse of the well known theorem that the zeros of orthogonal polynomials
interlace.


title:
A shift in Jupiter's equatorial haze distribution imaged with the
  Multi-Conjugate Adaptive Optics Demonstrator at the VLT

abstract:
  Jupiter was imaged during the Science Demonstration of the MCAO Demonstrator
(MAD) at the European Southern Observatory's UT3 Very Large Telescope unit. Io
and Europa were used as natural guide stars on either side of Jupiter,
separated from each other by about 1.6 arcmin from 23:41 to 01:32 UT (2008 Aug
16/17). The corrected angular resolution was 0.090 arcsec across the entire
field of view, as measured on background stars.
  The observations at 2.02, 2.14, and 2.16 micrometers were sensitive to
portions of the Jovian spectrum with strong methane absorption. The data probe
the upper troposphere, which is populated with a fine (~0.5 micrometer) haze.
Two haze sources have been proposed: lofting of fine cloud particles into the
stable upper troposphere, and condensation of hydrazine produced via ammonia
photochemistry. The upper tropospheric haze is enhanced over Jupiter's
equatorial region.
  Dramatic changes in the underlying cloud cover--part of the 2006/2007 "global
upheaval"--may be associated with changes in the equatorial haze distribution
now evident in the 2008 MAD images. Haze reflectivity peaked at 5 degrees N in
HST/NICMOS data from 2005, but it now peaks at the equator. The observations
suggest that haze variation is controlled by particle size, cloud source
variation, diffusion, and horizontal transport.


title:
Pinning mode resonances of 2D electron stripe phases: Effect of in-plane
  magnetic field

abstract:
  We study the anisotropic pinning-mode resonances in the rf conductivity
spectra of the stripe phase of 2D electron systems (2DES) around Landau level
filling 9/2, in the presence of an in-plane magnetic field, B_ip. The
polarization along which the resonance is observed switches as B_ip is applied,
consistent with the reorientation of the stripes. The resonance frequency, a
measure of the pinning interaction between the 2DES and disorder, increases
with B_ip. The magnitude of this increase indicates that disorder interaction
is playing an important role in determining the stripe orientation.


title: Searches for the Higgs Boson

abstract:
  Searches for this Higgs boson are reaching an exciting time. This proceeding
reports the progress on Standard Model Higgs boson searches at the Tevatron and
the prospects for Higgs boson searches at the Large Hadron Collider. Also
reported are the results of non Standard Model searches and prospects at the
Tevatron, Large Hadron Collide and B factories. Included in this result are the
first limits on the mass of the Standard Model Higgs boson at high masses
beyond the kinematic reach of the Large Electron Positron collider.


title: Measurements of Exclusive B -> Xc l nubar Decays and |Vcb| at BaBar

abstract:
  We present recent results on exclusive Bbar -> Xc l- nubar_l decays and
measurements of the CKM matrix element |Vcb| based on data collected at the
Upsilon(4S) resonance with the babar detector at the PEP-II e+e- storage rings.


title: Recent Progress in Formal Theory

abstract:
  This is a summary talk covering recent progress in perturbative methods for
gauge theories and gravity, applications of AdS/CFT duality, vacuum energy, and
string theory models of particle physics and cosmology.


title: Characterising Testing Preorders for Finite Probabilistic Processes

abstract:
  In 1992 Wang & Larsen extended the may- and must preorders of De Nicola and
Hennessy to processes featuring probabilistic as well as nondeterministic
choice. They concluded with two problems that have remained open throughout the
years, namely to find complete axiomatisations and alternative
characterisations for these preorders. This paper solves both problems for
finite processes with silent moves. It characterises the may preorder in terms
of simulation, and the must preorder in terms of failure simulation. It also
gives a characterisation of both preorders using a modal logic. Finally it
axiomatises both preorders over a probabilistic version of CSP.


title: (Non)Automaticity of number theoretic functions

abstract:
  Denote by $\lambda(n)$ Liouville's function concerning the parity of the
number of prime divisors of $n$. Using a theorem of Allouche, Mend\`es France,
and Peyri\`ere and many classical results from the theory of the distribution
of prime numbers, we prove that $\lambda(n)$ is not $k$--automatic for any $k>
2$. This yields that $\sum_{n=1}^\infty \lambda(n) X^n\in\mathbb{F}_p[[X]]$ is
transcendental over $\mathbb{F}_p(X)$ for any prime $p>2$. Similar results are
proven (or reproven) for many common number--theoretic functions, including
$\phi$, $\mu$, $\Omega$, $\omega$, $\rho$, and others.


title:
Insights into classical irreversible computation using quantum
  information concepts

abstract:
  The method of using concepts and insight from quantum information theory in
order to solve problems in reversible classical computing (introduced in Ref.
[1]) have been generalized to irreversible classical computing. The method have
been successfully tested on two computational tasks. Several basic logic gates
have been analyzed and the nonlocal content of the associate quantum
transformations have been calculated. The results provide us with new
interesting insight into the notion of complexity of logic operations.


title:
Measurements of the Top Quark Mass in the Dilepton Decay Channel at the
  D0 Experiment

abstract:
  We present the most recent measurements of the top quark mass in the dilepton
decay channel at the D0 experiment using proton-antiproton collisions with a
center-of-mass energy of 1.96 TeV at the Tevatron collider. Two different
methods have been used: the Neutrino Weighting and the Matrix Element method.
The combined results yield a top mass of 174.4 +-3.8 GeV.


title: Fossil remnants of reionization in the halo of the Milky Way

abstract:
  Our recently completed one billion particle Via Lactea II simulation of a
Milky Way-sized dark matter halo resolves over 50,000 gravitationally bound
clumps orbiting today within the virialized region of the main host. About
2,300 of these subhalos have one or more "progenitors" above 1e6 Msun at
redshift 11, i.e. massive enough for their gas to have cooled via excitation of
H2 and fragmented prior to the epoch of cosmic reionization. We count 4,500
such progenitors: if these were able to convert a fraction of their gas content
into very metal-poor stars with a Salpeter initial mass function (IMF), they
would be shining today with a visual magnitude M_V=6.7 per solar mass in stars.
Assuming a universal baryon fraction, we show that mean star formation
efficiencies as low as 0.1% in progenitors below 1e8 Msun would overproduce the
abundance of the faint Galatic dwarf spheroidals observed by the Sloan Digital
Sky Survey. Star formation at first light must have occurred either with an IMF
lacking stars below 0.9 Msun, or was intrinsically very inefficient in small
dark matter halos. If the latter, our results may be viewed as another hint of
a minimum scale in galaxy formation.


title:
Nonlinear resistance of 2D electrons in crossed electric and magnetic
  fields

abstract:
  The longitudinal resistivity of two dimensional (2D) electrons placed in
strong magnetic field is significantly reduced by applied electric field, an
effect which is studied in a broad range of magnetic fields and temperatures in
GaAs quantum wells with high electron density. The data are found to be in good
agreement with theory, considering the strong nonlinearity of the resistivity
as result of non-uniform spectral diffusion of the 2D electrons. Inelastic
processes limit the diffusion. Comparison with the theory yields the inelastic
scattering time of the two dimensional electrons. In the temperature range
T=2-10(K) for overlapping Landau levels, the inelastic scattering rate is found
to be proportional to T^2, indicating a dominant contribution of the
electron-electron scattering to the inelastic relaxation. In a strong magnetic
field, the nonlinear resistivity demonstrates scaling behavior, indicating a
specific regime of electron heating of well-separated Landau levels. In this
regime the inelastic scattering rate is found to be proportional to T^3,
suggesting the electron-phonon scattering as the dominant mechanism of the
inelastic relaxation.


title: Nonlinear plasmonic slot waveguides

abstract:
  We study nonlinear modes in subwavelength slot waveguides created by a
nonlinear dielectric slab sandwiched between two metals. We present the
dispersion diagrams of the families of nonlinear plasmonic modes and reveal
that the symmetric mode undergoes the symmetry-breaking bifurcation with the
energy primarily localized near one of the interfaces. We also find that the
antisymmetric mode may split into two brunches giving birth to two families of
nonlinear antisymmetric modes.


title: Distributed Estimation over Wireless Sensor Networks with Packet Losses

abstract:
  A distributed adaptive algorithm to estimate a time-varying signal, measured
by a wireless sensor network, is designed and analyzed. One of the major
features of the algorithm is that no central coordination among the nodes needs
to be assumed. The measurements taken by the nodes of the network are affected
by noise, and the communication among the nodes is subject to packet losses.
Nodes exchange local estimates and measurements with neighboring nodes. Each
node of the network locally computes adaptive weights that minimize the
estimation error variance. Decentralized conditions on the weights, needed for
the convergence of the estimation error throughout the overall network, are
presented. A Lipschitz optimization problem is posed to guarantee stability and
the minimization of the variance. An efficient strategy to distribute the
computation of the optimal solution is investigated. A theoretical performance
analysis of the distributed algorithm is carried out both in the presence of
perfect and lossy links. Numerical simulations illustrate performance for
various network topologies and packet loss probabilities.


title: Search for H->WW->ll at D0

abstract:
  A search for the Higgs boson in H -> WW -> ll(l = e, mu) decays in ppbar
collisions at a center-of-mass energy of sqrt{s}=1.96 TeV is presented. The
data have been collected by the Run II DO detector between April 2002 and June
2008, corresponding to 3 fb^{-1} of integrated luminosity. In order to maximize
the sensitivity the multivariate technique of Artificial Neural Networks is
used. No excess above the Standard Model background is observed and limits on
the production cross section times branching ratio sigma x BR(H -> WW -> ll)
for m_H=115 - 200 GeV using a Higgs mass grid of 5 GeV have been set.


title:
Beam oscillations and curling in chirped periodic structures with
  metamaterials

abstract:
  We study the propagation of electromagnetic waves in one-dimensional chirped
periodic structures composed of alternating layers of negative-index (or
left-handed) metamaterial and conventional dielectric, under the condition of
the zero average refractive index. We consider the case when the periodic
structure has a linear chirp, and the chirp is introduced by varying linearly
the thickness of the layers across the structure. We apply an asymptotic
analytical method for the analysis of the Bloch oscillations and find that, in
a sharp contrast to ordinary periodic dielectric structures, the energy flow in
multi-layered stacks with metamaterials may have the opposite direction at the
band edges, thus providing novel possibilities for the beam steering in the
transmission band.


title: The vanishing viscosity limit for a dyadic model

abstract:
  A dyadic shell model for the Navier-Stokes equations is studied in the
context of turbulence. The model is an infinite nonlinearly coupled system of
ODEs. It is proved that the unique fixed point is a global attractor, which
converges to the global attractor of the inviscid system as viscosity goes to
zero. This implies that the average dissipation rate for the viscous system
converges to the anomalous dissipation rate for the inviscid system (which is
positive) as viscosity goes to zero. This phenomenon is called the dissipation
anomaly predicted by Kolmogorov's theory for the actual Navier-Stokes
equations.


title:
Differential operator realizations of superalgebras and free field
  representations of corresponding current algebras

abstract:
  Based on the particular orderings introduced for the positive roots of finite
dimensional basic Lie superalgebras, we construct the explicit differential
operator representations of the $osp(2r|2n)$ and $osp(2r+1|2n)$ superalgebras
and the explicit free field realizations of the corresponding current
superalgebras $osp(2r|2n)_k$ and $osp(2r+1|2n)_k$ at an arbitrary level $k$.
The free field representations of the corresponding energy-momentum tensors and
screening currents of the first kind are also presented.


title:
Quenches in quantum many-body systems: One-dimensional Bose-Hubbard
  model reexamined

abstract:
  When a quantum many-body system undergoes a quench, the time-averaged
density-matrix $\rho$ governs the time-averaged expectation value of any
observable. It is therefore the key object to look at when comparing results
with equilibrium predictions. We show that the weights of $\rho$ can be
efficiently computed with Lanczos diagonalization for relatively large Hilbert
spaces. As an application, we investigate the crossover from perturbative to
non-perturbative quenches in the non-integrable Bose-Hubbard model: on finite
systems, an approximate Boltzmann distribution is observed for small quenches,
while for larger ones the distributions do not follow standard equilibrium
predictions. Studying thermodynamical features, such as the energy fluctuations
and the entropy, shows that $\rho$ bears a memory of the initial state.


title: Second maximal subgroups of the finite alternating and symmetric groups

abstract:
  A subgroup of a finite group G is said to be second maximal if it is maximal
in every maximal subgroup of G that contains it. A question which has received
considerable attention asks: can every positive integer occur as the number of
the maximal subgroups that contain a given second maximal subgroup in some
finite group G? Various reduction arguments are available except when G is
almost simple. Following the classification of the finite simple groups, finite
almost simple groups fall into three categories: alternating and symmetric
groups, almost simple groups of Lie type, sporadic groups and automorphism
groups of sporadic groups. This thesis investigates the finite alternating and
symmetric groups, and finds that in such groups, except three well known
examples, no second maximal subgroup can be contained in more than 3 maximal
subgroups.


title:
Spectrum of SU(2) gauge theory with two fermions in the adjoint
  representation

abstract:
  We present preliminary results of lattice simulations of SU(2) gauge theory
with two Wilson fermions in the adjoint representation. This theory has
recently attracted considerable attention because it might possess an infrared
fixed point (or an almost-fixed-point), and hence be a candidate for a walking
technicolor theory. In this work we study the particle spectrum of the theory,
and compare it with more familiar spectrum of the theory with SU(2) gauge
fields and two flavors of fundamental representation fermions.


title: General Searches for New Physics

abstract:
  A model-independent global search for new physics has been performed at the
CDF experiment. This search examines nearly 400 final states, looking for
discrepancies between the observed data and the standard model expectation in
populations, kinematic shapes, and the tails of the summed transverse momentum
distributions. A new approach also searches in approximately 5000 mass
variables looking for `bumps' that may indicate resonant production of new
particles. The results of this global search for new physics in 2/fb are
presented. In addition, a model-independent search for deviations from the
Standard Model prediction is performed in e+p and e-p collisions at HERA II
using all H1 data recorded during the second running phase. This corresponds to
integrated luminosities of 178/pb and 159/pb for e+p and e-p collisions,
respectively. A statistical algorithm is used to search for deviations in the
distributions of the scalar sum of transverse momenta or invariant mass of
final state particles, and to quantify their significance.


title:
Foundations of a Multi-way Spectral Clustering Framework for Hybrid
  Linear Modeling

abstract:
  The problem of Hybrid Linear Modeling (HLM) is to model and segment data
using a mixture of affine subspaces. Different strategies have been proposed to
solve this problem, however, rigorous analysis justifying their performance is
missing. This paper suggests the Theoretical Spectral Curvature Clustering
(TSCC) algorithm for solving the HLM problem, and provides careful analysis to
justify it. The TSCC algorithm is practically a combination of Govindu's
multi-way spectral clustering framework (CVPR 2005) and Ng et al.'s spectral
clustering algorithm (NIPS 2001). The main result of this paper states that if
the given data is sampled from a mixture of distributions concentrated around
affine subspaces, then with high sampling probability the TSCC algorithm
segments well the different underlying clusters. The goodness of clustering
depends on the within-cluster errors, the between-clusters interaction, and a
tuning parameter applied by TSCC. The proof also provides new insights for the
analysis of Ng et al. (NIPS 2001).


title:
Density effect on multi-wavelength luminosities on star formation
  regions in NGC 3184 and NGC 3938

abstract:
  We analyzed the regions of star formation in the spiral galaxies NGC 3184 and
NGC 3938 from archive images at multiple wavelengths (NUV from GALEX, H-alpha
from JKT and KPNO, 8 and 24 um from Spitzer, and CO from BIMA). We used the
Clump Find Algorithm to extract the properties of the star forming tracers
shown as emission regions at each wavelength. We obtained a power-law relation
between the luminosity and the emission region volume that scales as expected,
$L proportional to V, for the H-alpha and NUV emission; but much faster for the
dust (8 and 24 um) and molecular gas emitting regions in CO. This is
interpreted as a change on the emissivity with the size of the cloud, either by
an augmentation of the overall density or due to the presence of high density
clumps, with high local emissivity coefficients. Although the clumpy nature of
molecular gas may not be surprising, the clumpy nature of mid-infrared emission
regions, that could be explained by newly formed high to intermediate mass
stars embedded into the dust and heating it, is clearly revealed in both
galaxies.


title: Reconstruction of Cosmic and Beam-Halo Muons with the CMS Detector

abstract:
  The powerful muon and tracker systems of the CMS detector together with
dedicated reconstruction software allow precise and efficient measurement of
muon tracks originating from proton-proton collisions. The standard muon
reconstruction algorithms, however, are inadequate to deal with muons that do
not originate from collisions. We present the design, implementation, and
performance of a dedicated cosmic muon track reconstruction algorithm, which
features pattern recognition optimized for muons that are not coming from the
interaction point, i.e. cosmic muons and beam-halo muons. To evaluate the
performance of the new algorithm, data taken during Cosmic Challenge phases I
and II as well as beam-halo muons recorded during the first LHC beam operation
were studied. In addition, a variety of more general topologies of cosmic muons
and beam-halo muons were studied using simulated data to demonstrate some key
features of the new algorithm.


title:
Measurement of Large Transverse Momentum Hadrons and Constraints on
  Medium Opacity Parameters

abstract:
  The PHENIX experiment has measured {\piz}s in Au+Au collisions at
sqrt(s_{NN}) = 200 GeV, with good statistics for transverse momentum, pT, up to
20 GeV/c. A fivefold suppression is found, which is essentially constant for
5<pT<20 GeV/c. While the production of high pT pions in high energy p+p
collisions is well described in the framework of perturbative QCD, production
in ultra-relativistic heavy ion collisions involves additional degrees of
freedom related the opacity of the deconfined medium produced in the
collisions. The uncertainties of the latest measurement are small enough to
constrain model-dependent opacity-related parameters, such as the transport
coefficient of the medium, qhat or initial gluon density dN^g/dy at the level
of +/- 20-25% (one standard deviation), by applying a statistical method
proposed. From the dependence of the suppression level to the number of
participant nucleons, we have also confirmed that the energy loss increases as
pT of partons increases. The latest PHENIX result on high transverse momentum
hadrons are presented, and the property of the medium created in the collisions
is discussed in detail.


title:
Coherent manipulation of magnetization precession in ferromagnetic
  semiconductor (Ga,Mn)As with successive optical pumping

abstract:
  We report dynamic control of magnetization precession by light alone. A
ferromagnetic (Ga,Mn)As epilayer was used for experiments. Amplitude of
precession was modulated to a large extent by tuning the time interval between
two successive optical pump pulses which induced torques on magnetization
through a non-thermal process. Nonlinear effect in precession motion was also
discussed.


title: Optimal codes in deletion and insertion metric

abstract:
  We improve the upper bound of Levenshtein for the cardinality of a code of
length 4 capable of correcting single deletions over an alphabet of even size.
We also illustrate that the new upper bound is sharp. Furthermore we will
construct an optimal perfect code capable of correcting single deletions for
the same parameters.


title: A survey on Cox rings

abstract:
  We survey the construction of the Cox ring of an algebraic variety X and
study the birational geometry of X when its Cox ring is finitely generated.


title:
Decomposition of Almost Poisson Structure of Non-Self-Adjoint Dynamical
  Systems

abstract:
  Non-self-adjoint dynamical systems, e.g., nonholonomic systems, can admit an
almost Poisson structure, which is formulated by a kind of Poisson bracket
satisfying the usual properties except for the Jacobi identity. A general
theory of the almost Poisson structure is investigated based on a decomposition
of the bracket into a sum of a Poisson one and an almost Poisson one. The
corresponding relation between Poisson structure and symplectic structure is
proved, making use of Jacobiizer and symplecticizer. Based on analysis of
pseudo-symplectic structure of constraint submanifold of Chaplygin nonholonomic
systems, an almost Poisson bracket for the systems is constructed and
decomposed into a sum of a canonical Poisson one and an almost Poisson one.
Similarly, an almost Poisson structure, which can be decomposed into a sum of
canonical one and an almost Lie-Poisson one, is also constructed on an affine
space with torsion whose autoparallels are utilized to described the free
motion of some non-self-adjoint systems. The decomposition of the almost
Poisson bracket directly leads to a decomposition of a dynamical vector field
into a sum of usual Hamiltionian vector field and an almost Hamiltonian one,
which is useful to simplifying the integration of vector fields.


title: Newtonian perturbations and the Einstein-Yang-Mills-dilaton equations

abstract:
  In this paper we show that problem of proving the existence of a countable
number of solutions to the static spherically symmetric SU(2)
Einstein-Yang-Mills-dilaton (EYMd) equations can be reduced to proving the
non-existence of solutions to the linearized Yang-Mills-dilaton equations
(lYMd) satisfying certain asymptotic conditions. The reduction from a
non-linear to a linear problem is achieved using a Newtonian perturbation type
argument.


title: Search for Dark Matter

abstract:
  The search for dark matter is a very wide an active field of research, and I
necessarily concentrate here only in some aspects of it. I will review the
prospects for direct and indirect dark matter searches of Weakly Interacting
Massive Particles in the dark halo of our galaxy and focus in particular on the
data of GLAST, PAMELA and DAMA.


title:
Oscillation and Future Detection of Failed Supernova Neutrinos from
  Black Hole Forming Collapse

abstract:
  Recently, stellar collapse involving black hole formation from massive stars
is suggested to emit enormous fluxes of neutrinos on par with ordinary
core-collapse supernovae. We investigate their detectability for the currently
operating neutrino detector, SuperKamiokande. Neutrino oscillation is also
taken into account for the evaluation. We find that the event number is larger
than or comparable to that of supernova neutrinos and, hence, black hole
formation is also a candidate for neutrino astronomy. Moreover, we find that
the event number depends dominantly on the equation of state used in the
computations of the black hole formation. This fact implies that the detection
of neutrinos emitted from the black hole progenitors is very valuable to probe
the properties of the equation of state for hot and/or dense matter.


title: An existence proof for the gravitating BPS monopole

abstract:
  We prove the existence of the gravitating BPS monopole in
Einstein-Yang-Mills-Higgs (EYMH) theory. Existence is established using a
Newtonian perturbation argument which shows that a Yang-Mills-Higgs BPS
monopole solution can be be continued analytically in powers of $1/c^{2}$ to an
EYMH solution.


title: Detection of Geoneutrinos: Can We Make the Gnus Work for Us?

abstract:
  The detection of electron anti-neutrinos from natural radioactivity in the
earth has been a goal of neutrino researchers for about half a century. It was
accomplished by the KamLAND Collaboration in 2005, and opens the way towards
studies of the Earth's radioactive content, with very important implications
for geology. New detectors are operating (KamLAND and Borexino), building
(SNO+) and being proposed (Hanohano, LENA, Earth and others) that will go
beyond the initial observation and allow interesting geophysical and
geochemical research, in a means not otherwise possible. Herein we describe the
approaches being taken (large liquid scintillation instruments), the
experimental and technical challenges (optical detectors, directionality), and
prospects for growth of this field. There is related spinoff in particle
physics (neutrino oscillations and hierarchy determination), astrophysics
(solar neutrinos, supernovae, exotica), and in the practical matter of remote
monitoring of nuclear reactors.


title: Bs Mixing at D0 experiment

abstract:
  In this report, we present a preliminary measurement of the Bs0 mixing
parameter using samples of four partially reconstructed semileptonic Bs0 decays
and one fully reconstructed hadronic decay mode, corresponding to approximately
2.4 fb^{-1} of integrated luminosity. We perform an unbinned likelihood fit to
the proper decay length and obtain Dms = 18.53 +- 0.93 (stat.) +- 0.30 (syst)
ps^{-1}$.


title:
Level-3 Calorimetric Resolution available for the Level-1 and Level-2
  CDF Triggers

abstract:
  As the Tevatron luminosity increases sophisticated selections are required to
be efficient in selecting rare events among a very huge background. To cope
with this problem, CDF has pushed the offline calorimeter algorithm
reconstruction resolution up to Level 2 and, when possible, even up to Level 1,
increasing efficiency and, at the same time, keeping under control the rates.
  The CDF Run II Level 2 calorimeter trigger is implemented in hardware and is
based on a simple algorithm that was used in Run I. This system has worked well
for Run II at low luminosity. As the Tevatron instantaneous luminosity
increases, the limitation due to this simple algorithm starts to become clear:
some of the most important jet and MET (Missing ET) related triggers have large
growth terms in cross section at higher luminosity. In this paper, we present
an upgrade of the Level 2 Calorimeter system which makes the calorimeter
trigger tower information available directly to a CPU allowing more
sophisticated algorithms to be implemented in software. Both Level 2 jets and
MET can be made nearly equivalent to offline quality, thus significantly
improving the performance and flexibility of the jet and MET related triggers.
However in order to fully take advantage of the new L2 triggering capabilities
having at Level 1 the same L2 MET resolution is necessary. The new Level-1 MET
resolution is calculated by dedicated hardware. This paper describes the
design, the hardware and software implementation and the performance of the
upgraded calorimeter trigger system both at Level 2 and Level 1.


title:
Top Quark Mass Measurement Using a Matrix Element Method with
  Quasi-Monte Carlo Integration

abstract:
  We report an updated measurement of the top quark mass obtained from ppbar
collisions at sqrt(s) = 1.96 TeV at the Fermilab Tevatron using the CDF II
detector. Our measurement uses a matrix element integration method to obtain a
signal likelihood, with a neural network used to identify background events and
a likelihood cut applied to reduce the effect of badly reconstructed events. We
use a 2.7 fb^-1 sample and observe 422 events passing all of our cuts. We find
m_t = 172.2 +/- 1.0 (stat.) +/- 0.9 (JES) +/- 1.0 (syst.) GeV/c^2, or m_t =
172.2 +/- 1.7 (total) GeV/c^2.


title:
Abstract integrals in algebra: coalgebras, Hopf algebras and compact
  groups

abstract:
  We generalize the results on existence and uniqueness of integrals from
compact groups and Hopf algebras in a pure (co)algebraic setting, and find a
series of new results on (quasi)-co-Frobenius and semiperfect coalgebras. For a
coalgebra $C$, we introduce the generalized space of integrals
$\int_M=\Hom^C(C,M)$ associated to a right $C$-comodule $M$ and study
connections between "uniqueness of integrals" $\dim(\int_M)\leq \dim(M)$ and
"existence of integrals" $\dim(\int_M)\geq \dim(M)$ for all $M$ and
representation theoretic properties of $C$: (quasi)-co-Frobenius, semiperfect.
We show that a coalgebra is co-Frobenius if and only if existence and
uniqueness of integrals holds for any finite dimensional $M$. We give the
interpretation for $\int_M$ for the coalgebra of representative functions of a
compact group - they will be "quantum"-invariant vector integrals. As
applications, new proofs of well known characterizations of co-Frobenius
coalgebras and Hopf algebras are obtained, as well as the uniqueness of
integrals in Hopf algebras. We also give the consequences for the
representation theory of infinite dimensional algebras. We give an extensive
class of examples which show that the results of the paper are the best
possible. These examples are then used to give all the previously unknown
connections between the various important classes of coalgebras appearing in
literature.


title: Spherical symmetry of generalized EYMH fields

abstract:
  The possible actions of symmetry groups on generalized Higgs fields coupled
to an Einstein-Yang-Mills field are studied with differential geometrical
techniques involving principal and associated bundles. A classification of
conjugacy classes of these actions and the form of the corresponding invariant
Einstein-Yang-Mills-Higgs (EYMH) fields is obtained and then applied to the
case of static spherically symmetric fields over four dimensional space-time.
The representations of the gauge group for which spherically symmetric Higgs
fields exist are identified and the set of all field equations for the
independent functions that describe these fields is analyzed and the
corresponding ordinary system of differential equations is derived and shown to
be consistent.


title: Circular thin position for knots in the 3-sphere

abstract:
  A regular circle-valued Morse function on the knot complement C(K) = S^3\K is
a function f from C(K) to S^1 which separates critical points and which behaves
nicely in a neighborhood of the knot. Such a function induces a handle
decomposition on the knot exterior E(K) = S^3\N (K), with the property that
every regular level surface contains a Seifert surface for the knot. We
rearrange the handles in such a way that the regular surfaces are as simple as
possible. To make this precise the concept of circular width for E(K) is
introduced. When E(K) is endowed with a handle decomposition which realizes the
circular width we will say that the knot K is in circular thin position. We use
this to show that many knots have more than one non-isotopic incompressible
Seifert surface. We also analyze the behavior of the circular width under some
knot operations.


title:
Azimuthal correlations between charged hadrons and direct photons at
  high-p$_{t}$ in $p+p$ and $Au+Au$ collisions at $\sqrt{s_{NN}}$ = 200 GeV

abstract:
  Recent results at STAR for direct $\gamma$-charged hadron azimuthal
correlations in heavy-ion collisions are presented. These correlations are used
to study the color charge density of the medium through the medium-induced
modification of high-p$_T$ parton fragmentation. Azimuthal correlations of
direct photons at high transverse energy 8 $<$ E$_T$ $<$ 16 GeV with away-side
charged hadrons of transverse momentum 3 $<$ p$_T$ $<$ 6 GeV/c have been
measured over a broad range of centrality for $Au+Au$ collisions and $p+p$
collisions at $\sqrt{s_{NN}}$ = 200 GeV in the STAR experiment. The per-trigger
away-side yield of direct $\gamma$ is smaller than from $\pi^{0}$ triggers in
the same centrality class.


title: The Newtonian limit for perfect fluids

abstract:
  We prove that there exists a class of non-stationary solutions to the
Einstein-Euler equations which have a Newtonian limit. The proof of this result
is based on a symmetric hyperbolic formulation of the Einstein-Euler equations
which contains a singular parameter $\ep = v_T/c$ where $v_T$ is a
characteristic velocity scale associated with the fluid and $c$ is the speed of
light. The symmetric hyperbolic formulation allows us to derive $\ep$
independent energy estimates on weighted Sobolev spaces. These estimates are
the main tool used to analyze the behavior of solutions in the limit $\ep
\searrow 0$.


title:
X-ray studies of HESS J1837--069 with Suzaku and ASCA: a VHE gamma-ray
  source originated from the pulsar wind nebula

abstract:
  We present the ASCA and Suzaku studies of the TeV source HESS J1837--069,
which has not been identified in other wave-lengths. We confirm the presence of
two X-ray sources in the Suzaku XIS image, AX J1838.0--0655 and AX
J1837.3--0652, near both ends of the elongated TeV emission region. The XIS
spectra of the two sources are reproduced by an absorbed power-law model, whose
parameters are all consistent with those determined by the ASCA data. Recently,
70.5 ms X-ray pulsation has been detected with RXTE in the sky region including
HESS J1837--069 (2008, ApJ, 681, 515). Using the ASCA GIS data which has both
timing and imaging capabilities, we identified the pulsation source as AX
J1838.0--0655. The pulse periods determined by ASCA and Suzaku, and that
reported with RXTE indicate steady spin-down at $\dot{P} = 4.917(4) \times
10^{-14}$ s s$^{-1}$. These results suggest that AX J1838.0--0655 is an
intrinsically stable source, and presumably a pulsar wind nebula (PWN). We
discuss the possibility that AX J1838.0--0655 is associated with HESS
J1837--069 and the VHE gamma-ray emission is originated from the PWN.


title: Extra-dimensional cosmology with domain-wall branes

abstract:
  We show how to define a consistent braneworld cosmology in a model in which
the brane is constructed as a field-theoretic domain wall of finite thickness.
The Friedmann, Robertson-Walker metric is recovered in the region of the brane,
but, remarkably, with scale factor that depends on particle energy and on
particle species, constituting a breakdown of the weak equivalence principle on
sufficiently small scales. This unusual effect comes from the extended nature
of particles confined to a domain-wall brane, and the fact that they feel an
"average" of the bulk spacetime. We demonstrate how to recover the standard
results of brane cosmology in the infinitely-thin brane limit, and comment on
how our results have the potential to place bounds on parameters such as the
thickness of domain-wall braneworlds.


title: Searches at the Tevatron for a High Mass Standard Model Higgs Boson

abstract:
  We report on searches for a standard model (SM) Higgs boson in $p\bar(p)$
collisions at a center of mass energy sqrt{s}=1.96 TeV with the CDF and D0
detectors using an integrated luminosity of more than 3.0/fb. For a SM Higgs
with mass greater than 135 GeV, the dominant decay mode is two W bosons and the
searches presented are based upon the subsequent electron and muon decays of
the two W bosons. Significant improvement in background modeling and signal
predictions have been implemented since previous preliminary results. No
significant excess is observed, and limits on standard model Higgs production
are calculated. The observed 95% confidence level upper limits are found to be
a factor of 1.63 (2.0) higher than the predicted SM cross section at m_H = 165
GeV for the CDF (D0) experiment while the expected limits are a factor of 1.66
(1.9) higher than the predicted SM cross section.


title: Search for Physics beyond Standard Model at HERA

abstract:
  Recent results on searches for signals of physics beyond Standard Model at
the ep collider HERA are reviewed. Limits obtained for contact interaction
models, large extra dimensions and finite quark radius are presented. Searches
for excited-fermion resonances yield unique limits on excited electrons and
neutrinos. Finally, measurement of W production cross section in ep collision
is presented.


title: Morphology of epitaxial core-shell nanowires

abstract:
  We analyze the morphological stability against azimuthal, axial, and general
helical perturbations for epitaxial core-shell nanowires in the growth regimes
limited by either surface diffusion or evaporation-condensation surface
kinetics. For both regimes, we find that geometric parameters (i.e., core
radius and shell thickness) play a central role in determining whether the
nanowire remains cylindrical or its shell breaks up into epitaxial islands
similar to those observed during Stranski-Krastanow growth in thin epilayers.
The combination of small cores and rapid growth of the shell emerge as key
ingredients for stable shell growth. Our results provide an explanation for the
different core-shell morphologies reported in the Si-Ge system experimentally,
and also identify a growth-induced intrinsic mechanism for the formation of
helical nanowires.


title: No quantum friction between uniformly moving plates

abstract:
  The Casimir forces between two plates moving parallel to each other are found
by calculating the vacuum electromagnetic stress tensor. The perpendicular
force between the plates is modified by the motion but there is no lateral
force on the plates. Electromagnetic vacuum fluctuations do not therefore give
rise to "quantum friction" in this case, contrary to previous assertions. The
result shows that the Casimir-Polder force on a particle moving at constant
speed parallel to a plate also has no lateral component.


title: Difference operators and determinantal point processes

abstract:
  We consider a family {P} of determinantal point processes arising in
representation theory and random matrix theory. The processes live on the
one-dimensional lattice and their correlation kernels correspond to projection
operators in the l^2 Hilbert space on the lattice. Moreover, these projections
are spectral projections associated to certain selfadjoint second order
difference operators on the lattice. The aim of the note is to demonstrate that
the difference operators in question can be efficiently employed in the study
of limit transitions inside the family {P}.


title: Post-Newtonian expansions for perfect fluids

abstract:
  We prove the existence of a large class of dynamical solutions to the
Einstein-Euler equations that have a first post-Newtonian expansion. The
results here are based on the elliptic-hyperbolic formulation of the
Einstein-Euler equations used in \cite{Oli06}, which contains a singular
parameter $\ep = v_T/c$, where $v_T$ is a characteristic velocity associated
with the fluid and $c$ is the speed of light. As in \cite{Oli06}, energy
estimates on weighted Sobolev spaces are used to analyze the behavior of
solutions to the Einstein-Euler equations in the limit $\ep\searrow 0$, and to
demonstrate the validity of the first post-Newtonian expansion as an
approximation.


title:
Inclusive Search for the Standard Model Higgs Boson in the
  H->gamma+gamma Channel at the LHC with CMS

abstract:
  A brief summary of the CMS discovery potential for the Standard Model Higgs
boson in the H->gamma+gamma channel is presented. We review both a standard
cut-based search and a more optimized analysis that takes advantage of the wide
range of signal/background expectations as function of the possible selection
cuts. As the Higgs discovery in this channel will rely heavily on performance
of the CMS electromagnetic calorimeter, the relevant aspects of its design and
operation in situ at the LHC are also briefly discussed.


title: Measurements of Photon Plus Heavy Flavor Jet Cross Sections

abstract:
  Measurements of differential photon + c jet and photon + b jet production
cross sections are presented using approximately 1 fb-1 of data collected by
the D0 detector at the Tevatron proton-antiproton collider at a center-of-mass
energy of 1.96 TeV. Isolated photons are selected in the rapidity range |y| <
1.0 and jets selected with rapidities |y| < 0.8. The measurements are compared
to next-to-leading order theoretical predictions.


title: Isometry groups of proper CAT(0)-spaces

abstract:
  Let G be a closed subgroup of the isometry group of a proper CAT(0)-space X.
We show that if G is non-elementary and contains a rank-one element then its
second bounded cohomology group with coefficients in the regular representation
is non-trivial. As a consequence, up to passing to an open subgroup of finite
index, either G is a compact extension of a totally disconnected group or G is
a compact extension of a simple Lie group of rank one.


title:
Stationary phase-kink states and dynamical phase transitions controlled
  by surface impedance in THz wave emission from intrinsic Josephson junctions

abstract:
  As possible states to characterize THz wave emission from intrinsic Josephson
junctions without external fields, the McCumber-like state and $\pi$-phase-kink
state have been proposed. In the present article it is numerically shown that
both states are stationary according to the bias current $J$ and surface
impedance $Z$. The McCumber-like state is stable for low $J$ and small $Z$. For
higher $J$, the $\pi$-phase-kink state accompanied with symmetry breaking along
the c axis is stable even for Z=1, though strong emission in the vicinity of
cavity resonance points only takes place for larger $Z$. Different emission
behaviors for Z=1 and 10 are precisely compared. The dynamical phase diagram
for $1 \le Z \le 10$ and the optimal value of $Z$ for the strongest emission
are also evaluated.


title:
Multi-Tev Gamma-Ray Observation from the Crab Nebula Using the Tibet-III
  Air Shower Array Finely Tuned by the Cosmic-Ray Moon's Shadow

abstract:
  The Tibet-III air shower array, consisting of 533 scintillation detectors,
has been operating successfully at Yangbajing in Tibet, China since 1999. Using
the dataset collected by this array from 1999 November through 2005 November,
we obtained the energy spectrum of $\gamma$-rays from the Crab Nebula,
expressed by a power law as $(dJ/dE) = (2.09\pm0.32)\times10^{-12} (E/{\rm 3
TeV})^{-2.96\pm0.14} {\rm cm}^{-2} {\rm s}^{-1} {\rm TeV}^{-1}$ in the energy
range of 1.7 to 40 TeV. This result is consistent with other independent
$\gamma$-ray observations by imaging air Cherenkov telescopes. In this paper,
we carefully checked and tuned the performance of the Tibet-III array using
data on the moon's shadow in comparison with a detailed Monte Carlo simulation.
The shadow is shifted to the west of the moon's apparent position as an effect
of the geomagnetic field, although the extent of this displacement depends on
the primary energy positively charged cosmic rays. This finding enables us to
estimate the systematic error in determining the primary energy from its shower
size. This error is estimated to be less than $\pm$12% in our experiment. This
energy scale estimation is the first attempt among cosmic-ray experiments at
ground level. The systematic pointing error is also estimated to be smaller
than $0\fdg011$. The deficit rate and position of the moon's shadow are shown
to be very stable within a statistical error of $\pm$6% year by year. This
guarantees the long-term stability of point-like source observation with the
Tibet-III array. These systematic errors are adequately taken into account in
our study of the Crab Nebula.


title: Measurements of B hadron lifetimes at CDF

abstract:
  Using data samples in excess of 1 fb^-1 collected by the CDF II detector we
present several world's best measurements of B hadron lifetimes. They include
B_s meson lifetime in a flavor-specific decay mode, combining fully and
partially reconstructed hadronic decays, B_c^+ meson lifetimes in semileptonic
B_c^+ -> J/psi l+ X, l+=mu+,e+ decays and Lambda_b baryon lifetime in
Lambda_c^+ pi- fully-reconstructed decays. In addition, we introduce a Monte
Carlo independent technique for measuring B hadron lifetimes in data samples
biased by displaced vertex triggers.


title:
SN1987A: Revisiting the Data and the Correlation between Neutrino and
  Gravitational Detectors

abstract:
  We re-examine the data taken by the neutrino detectors during the supernova
SN1987A. It is found that the Kamiokande data, in addition to the well known
burst at 7:35 hours UT, show another one at 7:54 hours, with seven pulses in
6.2 seconds. This second burst supports the idea that the duration of the
collapse was much longer than a few seconds, as already suggested by the LSD
detection at 2:56 hours the same day, i.e. four and a half hours earlier. The
correlations between the gravitational wave detectors (Rome and Maryland) and
the neutrino detectors are also revisited. It is shown that the g.w. detectors
exhibit significant correlations with both the LSD and the Kamiokande detectors
over periods of one-two hours that are centered, in both cases, at the LSD
time.


title:
Measurement of the Solar Neutrino Flux with an Array of Neutron
  Detectors in the Sudbury Neutrino Observatory

abstract:
  The Sudbury Neutrino Observatory has measured the $^8$B solar neutrino flux
using an array of 3He proportional counters. Results obtained using a
Markov-Chain Monte-Carlo (MCMC) parameter estimation, integrating over a
standard extended likelihood, yield effective neutrino fluxes of:
phi_nc=5.54+0.33-0.31(stat)+0.36-0.34(syst) x 10^6 /cm^2/s,
phi_cc=1.67+0.05-0.04(stat)+0.07-0.08(syst) x 10^6 /cm^2/s, and
phi_es=1.77+0.24-0.21(stat)+0.09-0.10(syst) x 10^6 /cm^2/s. These measurements
are in agreement with previous solar neutrino flux measurements, and with
neutrino oscillation model results. Including these flux measurements in a
global analysis of solar and reactor neutrino results yields an improved
precision on the solar neutrino mixing angle of theta=34.4+1.3-1.2 degrees, and
Delta m^2=7.59+0.19-0.21 eV^2.


title:
A supercharacter theory for the Sylow p-subgroups of the finite
  symplectic and orthogonal groups

abstract:
  We define the superclasses for a classical finite unipotent group $U$ of type
$B_{n}(q)$, $C_{n}(q)$, or $D_{n}(q)$, and show that, together with the
supercharacters defined in a previous paper, they form a supercharacter theory.
In particular, we prove that the supercharacters take a constant value on each
superclass, and evaluate this value. As a consequence, we obtain a
factorization of any superclass as a product of elementary superclasses. In
addition, we also define the space of superclass functions, and prove that it
is spanned by the supercharacters. As as consequence, we (re)obtain the
decomposition of the regular character as an orthogonal linear combination of
supercharacters. Finally, we define the supercharacter table of $U$, and prove
various orthogonality relations for supercharacters (similar to the well-known
orthogonality relations for irreducible characters).


title: Non-perturbative renormalization of three-quark operators

abstract:
  High luminosity accelerators have greatly increased the interest in
semi-exclusive and exclusive reactions involving nucleons. The relevant
theoretical information is contained in the nucleon wavefunction and can be
parametrized by moments of the nucleon distribution amplitudes, which in turn
are linked to matrix elements of local three-quark operators. These can be
calculated from first principles in lattice QCD. Defining an RI-MOM
renormalization scheme, we renormalize three-quark operators corresponding to
low moments non-perturbatively and take special care of the operator mixing.
After performing a scheme matching and a conversion of the renormalization
scale we quote our final results in the MSbar scheme at mu=2 GeV.


title: Feshbach-Einstein condensates

abstract:
  We investigate the phase diagram of a two-species Bose-Hubbard model
describing atoms and molecules on a lattice, interacting via a Feshbach
resonance. We identify a region where the system exhibits an exotic super-Mott
phase and regions with phases characterized by atomic and/or molecular
condensates. Our approach is based on a recently developed exact quantum Monte
Carlo algorithm: the Stochastic Green Function algorithm with tunable
directionality. We confirm some of the results predicted by mean-field studies,
but we also find disagreement with these studies. In particular, we find a
phase with an atomic but no molecular condensate, which is missing in all
mean-field phase diagrams.


title: NIR/Optical Counterparts of Hotspots in Radio Galaxies

abstract:
  We present new high spatial resolution VLT and VLA observations of a sample
of nine low-power (P_{1.4 GHz} < 10^{25} W/Hz) radio hotspots. Infrared/optical
emission is definitely detected in four of the nine observed objects, resulting
in a detection rate of at least 45%. This emission is interpreted as
synchrotron radiation from the electrons accelerated in the hot spots. The
integrated spectra of these hotspots reveal typical break frequencies between
10^5 and 10^6 GHz, two orders of magnitude higher than typically found in
high-power hotspots. This supports the idea that in low-power hotspots with
their relatively low magnetic field strengths electrons emit most of their
energy at higher frequencies. A simple spectral ageing analysis would imply
that the emitting electrons have been injected into the hotspot volume less
than ~10^3 years ago. We discuss possible scenarios to explain the lack of
older electrons in the hotspot region. In particular, the extended morphology
of the NIR/optical emission would suggest that efficient re-acceleration
mechanisms rejuvenate the electron populations.


title: The strong-coupling limit of minimal lattice Landau gauge

abstract:
  We study the gluon and ghost propagators of lattice Landau gauge in the
strong coupling limit $\beta = 0$ in pure SU(2) lattice gauge theory to find
evidence of the conformal infrared behaviour of these propagators as predicted
by a variety of functional continuum methods for asymptotically small momenta
$q^2 \ll \Lambda_\mathrm{QCD}^2$. In the strong-coupling limit, this same
behaviour is obtained for the larger values of $a^2q^2$ (in units of the
lattice spacing $a$), where it is otherwise swamped by the gauge field
dynamics. Deviations for $a^2 q^2 < 1 $ are well parametrized by a transverse
gluon mass $\propto 1/a$. Perhaps unexpectedly, these deviations are thus no
finite-volume effect but persist in the infinite-volume limit. They furthermore
depend on the definition of gauge fields on the lattice, while the asymptotic
conformal behaviour does not.


title: Testing the Standard Model with WGamma and ZGamma at the Tevatron

abstract:
  Results on analyses involving WGamma and ZGamma production from the CDF and
D0 experiments at the Fermilab Tevatron Collider at Sqrt(s) = 1.96 TeV are
presented here. Using 1-2 fb^-1 of data, cross sections, anomalous coupling
limits, and the WGamma Radiation Amplitude Zero are reviewed.


title:
Non-thermal emissions from outer magnetospheric accelerators of
  middle-aged pulsars

abstract:
  We discuss $\gamma$-ray emissions from the outer gap accelerators of
middle-aged pulsars for part of the series of our studies. A two-dimensional
electrodynamic model is used to solve the distribution of accelerating electric
fields with electron and positron pair creation and radiation processes in the
magnetic meridional plane. We compute the curvature radiation and the
synchrotron radiation by solving the evolution of the Lorentz factor and the
pitch angle. The calculated spectra are compared with observed phase-averaged
spectra. We also use a three-dimensional geometrical model to discuss the pulse
profiles. We argue that the outer gap of middle-aged pulsars occupies the whole
region between the last-open field lines and the critical magnetic field lines,
which are perpendicular to the rotational axis at the light cylinder. We assume
that there is no outer gap accelerator inside the light cylinder between the
rotational axis and the critical magnetic field lines. For the Geminga pulsar,
we demonstrate that the outward curvature radiation dominates in the spectrum
above 10 MeV, while the inward synchrotron radiation dominates below 10 MeV. We
find that the computed spectrum is consistent with the observations in X-ray
through $\gamma$-ray bands. With the pulse morphology of the $\gamma$-ray
emissions, we argue that the inclination angle and the viewing angle for the
Geminga pulsar are $\alpha\sim 50^{\circ}$ and $\xi\sim 90^{\circ}$,
respectively.


title: Higgs couplings in the MSSM at large tan(beta)

abstract:
  We consider tan(beta)-enhanced quantum effects in the minimal supersymmetric
standard model (MSSM) including those from the Higgs sector. To this end, we
match the MSSM to an effective two-Higgs doublet model (2HDM), assuming that
all SUSY particles are heavy, and calculate the coefficients of the operators
that vanish or are suppressed in the MSSM at tree-level. Our result clarifies
the dependence of the large-tan(beta) resummation on the renormalization
convention for tan(beta), and provides analytic expressions for the Yukawa and
trilinear Higgs interactions. The numerical effect is analyzed by means of a
parameter scan, and we find that the Higgs-sector effects, where present, are
typically larger than those from the "wrong-Higgs" Yukawa couplings in the
2HDM.


title:
Study of the discontinuity of the exchange-correlation potential in an
  exactly soluble case

abstract:
  It was found by Perdew, Parr, Levy, and Balduz [Phys. Rev. Lett. {\bf 49},
1691 (1982)] and by Sham and Schl\"uter [Phys. Rev. Lett. {\bf 51}, 1884
(1983)] that the exact Kohn-Sham exchange-correlation potential of an open
system may jump discontinuosly as the particle number crosses an integer, with
important physical consequences. Recently, Sagvolden and Perdew [Phys. Rev. A
{\bf 77}, 012517 (2008)] have analyzed the discontinuity of the
exchange-correlation potential as the particle number crosses one, with an
illustration that uses a model density for the H$^-$ ion. In this work, we
extend their analysis to the case in which the external potential is the simple
harmonic confinement, choosing spring-constant values for which the
two-electron hamiltonian has an analytic solution. This way, we can obtain the
exact, analytic, exchange and correlation potentials for particle number
fluctuating between zero and two, illustrating the discontinuity as the
particle number crosses one without introducing any model or approximation. We
also discuss exchange and correlation separately.


title:
Fabrication of the preferentially orientated LiNbO3 nanoparticles and
  their ferroelectric behaviors

abstract:
  (00l)-Oriented LiNbO3 ultra-thin film was fabricated on Pt/Ti/SiO2/Si
substrate using pulsed laser deposition. The film shrunk into crystalline state
nanoparticles that still kept (00l) preferential orientation as being annealed
in the oxygen atmosphere at 500 oC for 2 hours. These LiNbO3 nanoparticles
exhibited the ferroelectricity, showing asymmetrical hysteresis loop which
might originate from the large internal field at the interface. These
nanoparticles could be used for further studying on the size effects and the
ferroelectricity of nanocrystal.


title: Compact C*-quantum groupoids

abstract:
  We propose a definition of compact quantum groupoids in the setting of
C*-algebras, associate to such a quantum groupoid a regular
C*-pseudo-multiplicative unitary, and use this unitary to construct a dual Hopf
C*-bimodule and to pass to a measurable quantum groupoid in the sense of Enock
and Lesieur. Moreover, we discuss examples related to compact and to \'etale
groupoids and study principal compact C*-quantum groupoids.


title: Time-reversal-odd phenomena in QCD

abstract:
  Single-spin asymmetries were long thought to vanish in high-energy scattering
processes because of their specific time-reversal behavior. Time-reversal-odd
phenomena, however, appear naturally when one includes effects of intrinsic
transverse momenta of partons. The partons, quarks and gluons, enter the
description of high-energy scattering processes in correlators which contain
quark and gluon fields. The correlators, parameterized in terms of distribution
and fragmentation functions, constitute matrix elements of non-local field
configurations. For transverse momentum dependent (TMD) correlators the
non-locality is along a light-front, in contrast to the non-locality along the
light-cone for collinear correlators, integrated over transverse momenta. The
TMD correlators require a careful treatment to assure color gauge invariance,
leading to nontrivial gauge links connecting the parton fields. These give rise
to time-reversal-odd phenomena, showing up as single spin and azimuthal
asymmetries. The gauge links, arising from multi-gluon initial and final state
interactions, depend on the color flow in the process, which has consequences
for issues like universality and factorization.


title: Electromagnetic radiation and resonance phenomena in quantum mechanics

abstract:
  It is demonstrated that, if one remains in the framework of quantum mechanics
taken alone, stationary states (energy eigenstates) are in no way singled out
with respect to nonstationary ones, and moreover the stationary states would be
difficult if possible to realize in practice. Owing to the nonstationary states
any quantum system can absorb or emit energy in arbitrary continuous amounts.
The peculiarity of the stationary states appears only if electromagnetic
radiation that must always accompany nonstationary processes in real systems is
taken into account. On the other hand, when the quantum system absorbs or emits
energy in the form of a wave the determining role is played by resonance
interaction of the system with the wave. Here again the stationary states
manifest themselves. These facts and influence of the resonator upon the
incident wave enable one to explain all effects ascribed to manifestation of
the corpuscular properties of light (the photoelectric effect, the Compton
effect etc.) solely on a base of the wave concept of light.


title: The efficient low-mass Seyfert MCG-05-23-016

abstract:
  The Seyfert 1.9 galaxy MCG-05-23-016 has been shown to exhibit a complex
X-ray spectrum. This source has moderate X-ray luminosity, hosts a comparably
low-mass black hole, but accretes at a high Eddington rate, and allows us to
study a super massive black hole in an early stage. Three observations of the
INTEGRAL satellite simultaneous with pointed Swift/XRT observations performed
from December 2006 to June 2007 are used in combination with public data from
the INTEGRAL archive to study the variability of the hard X-ray components and
to generate a high-quality spectrum from 1 to 150 keV. The AGN shows little
variability in the hard X-ray spectrum, with some indication of a variation in
the high-energy cut-off energy ranging from 50 keV to >>100 keV, with an
electron plasma temperature in the 10 - 90 keV range. The reflection component
is not evident and, if present, the reflected fraction can be constrained to R
< 0.3 for the combined data set. Comparison to previous observations shows that
the reflection component has to be variable. No variability in the UV and
optical range is observed on a time scale of 1.5 years. The hard X-ray spectrum
of MCG-05-23-016 appears to be stable with the luminosity and underlying power
law varying moderately and the optical/UV flux staying constant. The spectral
energy distribution appears to be similar to that of Galactic black hole
systems, e.g. XTE 1118+480 in the low state. The AGN exhibits a remarkably high
Eddington ratio of L(bol)/L(Edd)> 0.8 (or L(bol)/L(Edd) > 0.1, if we consider a
higher mass of the central engine) and, at the same time, a low cut-off energy
around 70 keV. Objects like MCG-05-23-016 might indicate the early stages of
super massive black holes, in which a strong accretion flow feeds the central
engine.


title:
Quantum phases of light coupled to a periodic Bose-Einstein condensate
  in a cavity

abstract:
  We study a composite photon-Bose condensed atoms (BEC) system in an optical
lattice confined in a cavity. We show that the system is able to produce an
effective photon-photon repulsion in the presence of an external pump. We
predict for the first time zero-temperature quantum phases of light coupled to
BEC in the photon blockade regime in the presence of an external pump.


title:
Design of a Fractional Order PID Controller Using Particle Swarm
  Optimization Technique

abstract:
  Particle Swarm Optimization technique offers optimal or suboptimal solution
to multidimensional rough objective functions. In this paper, this optimization
technique is used for designing fractional order PID controllers that give
better performance than their integer order counterparts. Controller synthesis
is based on required peak overshoot and rise time specifications. The
characteristic equation is minimized to obtain an optimum set of controller
parameters. Results show that this design method can effectively tune the
parameters of the fractional order controller.


title:
Simultaneous X-ray/optical/UV snapshots of active galactic nuclei from
  XMM-Newton: spectral energy distributions for the reverberation mapped sample

abstract:
  We employ contemporaneous optical, UV and X-ray observations from the
XMM-Newton EPIC-pn and Optical Monitor (OM) archives to present, for the first
time, simultaneous spectral energy distributions (SEDs) for the majority of the
Peterson et al. (2004) reverberation mapped sample of active galactic nuclei
(AGN). The raw data were reduced using the latest pipelines and are all
analysed consistently. The virial mass estimates from Peterson et al. (2004)
allow us to calculate Eddington ratios lambda_Edd for the sample using the
bolometric accretion luminosities determined directly from the SEDs. We
calculate hard X-ray bolometric corrections kappa_2-10keV for the sample and
confirm a trend for increasing bolometric correction with Eddington ratio
proposed in previous studies. Our comparison with previous work on these
objects suggests that the OM bandpass may be less susceptible to intrinsic
reddening than the far-UV peak of the thermal disc spectrum in AGN, yielding
larger bolometric corrections than previous work: kappa_2-10keV ~ 15 - 30 for
lambda_Edd <~ 0.1, kappa_2-10keV ~ 20 - 70 for 0.1 <~ lambda_Edd <~ 0.2 and
kappa_2-10keV ~ 70 - 150 for lambda_Edd >~ 0.2, but part of this increase could
be attributed to spectral complexity preventing accurate recovery of the
intrinsic luminosity in some sources. Long-term optical-UV variability
contributes a second-order, but significant change to the total bolometric
luminosity when comparing multiple observations for individual objects.We also
consider the effect of a recently proposed correction for radiation pressure
when determining black hole masses with reverberation mapping, and find that
the revised mass estimates do not significantly alter the range of bolometric
corrections seen but may yield a narrower distribution of Eddington ratios.


title:
Analytic continuation and embeddings in weighted backward shift
  invariant subspaces

abstract:
  By a famous result, functions in backward shift invariant subspaces in Hardy
spaces are characterized by the fact that they admit a pseudocontinuation a.e.
on $\T$. More can be said if the spectrum of the associated inner function has
holes on $\T$. Then the functions of the invariant subspaces even extend
analytically through these holes. We will discuss the situation in weighted
backward shift invariant subspaces. The results on analytic continuation will
be applied to consider some embeddings of weighted invariant subspaces into
their unweighted companions. Such weighted versions of invariant subspaces
appear naturally in the context of Toeplitz operators. A connection between the
spectrum of the inner function and the approximate point spectrum of the
backward shift in the weighted situation is established in the spirit of
results by Aleman, Richter and Ross.