pinecone/core-2020-05-10-deduplication huggingface dataset:
Variational Method for Calculation of Plasma Phase Diagrams in Path
  Integral Representation

The use of variational method in functional integral approach is discussed
for fermion and boson systems with Coulomb interaction. The formal general
expression of thermodynamic potential is obtained by Feynman path integral
technique and representation of Coulomb interaction with functional integrals.
Introduced additional complex field show to transform the problem to
calculation of functional integrals containing third order vertices. The
thermodynamic potential can be found from variational principle with respect to
field cumulants. The calculation of the equation of state and critical
properties is demonstrated for symmetrical plasma by variation of finite number
of parameters in the propagator.Comment: 10 pages, 4 figures, compressed to appear in Contrib. Plasma Phy
Geometry effects at conductance quantization in quantum wires

The transmission through quantum wires is studied within a noninteracting
model taking into account the geometry of cleaved edge overgrowth devices. We
show that the junction between wide contact and narrow wire has almost no
influence on the transmission through these devices while a potential step
between contact and wire strongly effects the conduction. Our results are
compared with recent experimental findings.Comment: 4 pages, Rapid Research Note in physica status solidi (b), sceduled
  for Vol. 216/2, page R5 (1999) Online access:
  http://www.wiley-vch.de/berlin/journals/pss/rapid/contents/index.html#99-06
Extraction of K-->pipi Matrix Elements with Wilson Fermions

We present the status of a lattice calculation for the K-->pipi matrix
elements of the (delta S=1) effective weak Hamiltonian, directly with two pion
in the final state. We study the energy shift of two pion in a finite volume
both in the I=0 and I=2 channels. We explain a method to avoid the Goldstone
pole contamination in the computation of renormalization constants for (delta
I=3/2) operators. Finally we show some preliminary results for the matrix
elements of (delta I=1/2) operators. Our quenched simulation is done at
beta=6.0, with Wilson fermions, on a (24^3 X 64) lattice.Comment: 3 pages (5 figs), Lattice2001 (matrixelement
The High Density Effects in Heavy Quark Production at pA Colliders

In this paper we investigate the role of the high density effects in the
heavy quark production cross section in $pA$ processes at RHIC and LHC. We use,
as initial condition, a gluon distribution consistent with fixed target nuclear
data and the Glauber-Mueller approach to describe the high density effects. We
show that this process can be used as a probe of the presence of the high
density effects. Moreover, we include these effects in the calculation of the
heavy quark production in $AA$ collisions, verifying that they cannot be
disregarded both in the estimates of quarkonium suppression and in the initial
conditions of the quark-gluon plasma.Comment: 16 pages, 4 figures. Reduced version to be published in Phys. Lett.
  B. Discussion improved. Conclusions unchange
The low energy dynamics of charge two dyonic instantons

We explore the low energy dynamics of charge two instantons and dyonic
instantons in SU(2) 5-dimensional Yang-Mills. We make use of the moduli space
approximation and first calculate the moduli space metric for two instantons.
For dyonic instantons the effective action of the moduli space approximation
also includes a potential term which we calculate. Using the ADHM construction
we are able to understand some aspects of the topology and structure of the
moduli space. We find that instantons undergo right angled scattering after a
head on collision and we are able to give an analytic description of this in
terms of a quotient of the moduli space by symmetries of the ADHM data. We also
explore the scattering of instantons and dyonic instantons numerically in a
constrained region of the moduli space. Finally we exhibit some examples of
closed geodesics on the moduli space, and geodesics which hit the moduli space
singularities in finite time.Comment: 39+11 pages, 21 figures, version submitted to JHE
The Baryonic Tully-Fisher Relationship for S$^4$G Galaxies and the
  "Condensed" Baryon Fraction of Galaxies

We combine data from the Spitzer Survey for Stellar Structure in Galaxies
(S$^4$G), a recently calibrated empirical stellar mass estimator from Eskew et
al., and an extensive database of HI spectral line profiles to examine the
baryonic Tully-Fisher (BTF) relation. We find 1) that the BTF has lower scatter
than the classic Tully-Fisher (TF) relation and is better described as a linear
relationship, confirming similar previous results, 2) that the inclusion of a
radial scale in the BTF decreases the scatter but only modestly, as seen
previously for the TF relation, and 3) that the slope of the BTF, which we find
to be $3.5\pm 0.2$ ($\Delta$ log $M_{baryon}/\Delta$ log $v_c$), implies that
on average a nearly constant fraction ($\sim 0.4$) of all baryons expected to
be in a halo are "condensed" onto the central region of rotationally supported
galaxies. The condensed baryon fraction, $M_{baryon}/M_{total}$, is, to our
measurement precision, nearly independent of galaxy circular velocity (our
sample spans circular velocities, $v_c$, between 60 and 250 km s$^{-1}$, but is
extended to $v_c\sim 10$ km s$^{-1}$ using data from the literature). The
observed galaxy-to-galaxy scatter in this fraction is generally $\le$ a factor
of 2 despite fairly liberal selection criteria. These results imply that
cooling and heating processes, such as cold vs. hot accretion, mass loss due to
stellar winds, and AGN driven feedback, to the degree that they affect the
global galactic properties involved in the BTF, are independent of halo mass
for galaxies with $10 < v_c < 250$ km/s and typically introduce no more than a
factor of two range in the resulting $M_{baryon}/M_{total}$. Recent simulations
by Aumer et al. of a small sample of disk galaxies are in excellent agreement
with our data, suggesting that current simulations are capable of reproducing
the global properties of individual disk galaxies.Comment: accepted for publication in A
Intra Cluster Light properties in the CLASH-VLT cluster MACS
  J1206.2-0847

We aim at constraining the assembly history of clusters by studying the intra
cluster light (ICL) properties, estimating its contribution to the fraction of
baryons in stars, f*, and understanding possible systematics/bias using
different ICL detection techniques. We developed an automated method, GALtoICL,
based on the software GALAPAGOS to obtain a refined version of typical BCG+ICL
maps. We applied this method to our test case MACS J1206.2-0847, a massive
cluster located at z=0.44, that is part of the CLASH sample. Using deep
multi-band SUBARU images, we extracted the surface brightness (SB) profile of
the BCG+ICL and we studied the ICL morphology, color, and contribution to f*
out to R500. We repeated the same analysis using a different definition of the
ICL, SBlimit method, i.e. a SB cut-off level, to compare the results. The most
peculiar feature of the ICL in MACS1206 is its asymmetric radial distribution,
with an excess in the SE direction and extending towards the 2nd brightest
cluster galaxy which is a Post Starburst galaxy. This suggests an interaction
between the BCG and this galaxy that dates back to t <= 1.5 Gyr. The BCG+ICL
stellar content is 8% of M_(*,500) and the (de-) projected baryon fraction in
stars is f*=0.0177 (0.0116), in excellent agreement with recent results. The
SBlimit method provides systematically higher ICL fractions and this effect is
larger at lower SB limits. This is due to the light from the outer envelopes of
member galaxies that contaminate the ICL. Though more time consuming, the
GALtoICL method provides safer ICL detections that are almost free of this
contamination. This is one of the few ICL study at redshift z > 0.3. At
completion, the CLASH/VLT program will allow us to extend this analysis to a
statistically significant cluster sample spanning a wide redshift range:
0.2<z<0.6.Comment: 18 pages, 13 figures, accepted for publication in Astronomy and
  Astrophysic
Constructing warm inflationary model in brane-antibrane system

Recently, various observational data predict a possibility that inflation may
naturally occur in a warm region. In this scenario, radiation is produced
during the inflation epoch and reheating is avoided. The main question arises
that what is the origin of warm inflation in 4D universe? We answer to this
question in brane-antibrane system. We propose a model that allows all
cosmological parameters like the scale factor a, the Hubble parameter H and
phantom energy density depend on the equation of state parameter in transverse
dimension between two branes. Thus, an enhancement in these parameters can be a
signature of some evolutions in extra dimension. In our model, the expansion of
4D universe is controlled by the separation distance between branes and evolves
from non-phantom phase to phantom one. Consequently, phantom-dominated era of
the universe accelerates and ends up in big-rip singularity. Also, we show that
as the tachyon potential increases, the effect of interaction between branes on
the 4D universe expansion becomes systematically more effective, because at
higher energies there exists more channels for flowing energy from extra
dimension to other four dimensions. Finally, we test our model against WMAP and
Planck data and obtain the ripping time. According to experimental data,
$N\simeq 50$ case leads to $n_{s}\simeq 0.96$, where \emph{N} and $n_{s}$ are
the number e-folds and the spectral index respectively. This standard case may
be found in $0.01 < R_{Tensor-scalar } < 0.22$, where $R_{Tensor-scalar }$ is
the tensor-scalar ratio. At this point, the finite time that Big Rip
singularity occurs is $t_{rip}=33(Gyr)$.Comment: 16 pages, 3 figures, Accepted in Phys. Lett. B. arXiv admin note:
  text overlap with arXiv:0708.3233 by other author
CALIFA, the Calar Alto Legacy Integral Field Area survey. III. Second
  public data release

This paper describes the Second Public Data Release (DR2) of the Calar Alto
Legacy Integral Field Area (CALIFA) survey. The data for 200 objects are made
public, including the 100 galaxies of the First Public Data Release (DR1). Data
were obtained with the integral-field spectrograph PMAS/PPak mounted on the 3.5
m telescope at the Calar Alto observatory. Two different spectral setups are
available for each galaxy, (i) a low-resolution V500 setup covering the
wavelength range 3745-7500 \AA\ with a spectral resolution of 6.0 \AA\ (FWHM),
and (ii) a medium-resolution V1200 setup covering the wavelength range
3650-4840 \AA\ with a spectral resolution of 2.3 \AA\ (FWHM). The sample covers
a redshift range between 0.005 and 0.03, with a wide range of properties in the
Color-Magnitude diagram, stellar mass, ionization conditions, and morphological
types. All released cubes were reduced with the latest pipeline, including
improved spectrophotometric calibration, spatial registration and spatial
resolution. The spectrophotometric calibration is better than 6% and the median
spatial resolution is 2.5". Altogether the second data release contains over
1.5 million spectra. It is available at http://califa.caha.es/DR2.Comment: 33 pages, 20 figures, 7 tables, submitted to A&A. The CALIFA DR2
  homepage http://califa.caha.es/DR2 is open for the publi
Low-energy analysis of M and F theories on Calabi-Yau threefolds

We elucidate the interplay between gauge and supersymmetry anomalies in six-dimensional N=1 supergravity with generalized couplings between tensor and vector multiplets. We derive the structure of the five-dimensional supergravity resulting from the S_1 reduction of these models and give the constraints on Chern-Simons couplings that follow from duality to M theory compactified on a Calabi-Yau threefold. The duality is supported only on a restricted class of Calabi-Yau threefolds and requires a special type of intersection form. We derive five-dimensional central-charge formulas and discuss briefly the associated phase transitions. Finally, we exhibit connections with F-theory compactifications on Calabi-Yau manifolds that admit elliptic fibrations. This analysis suggests that F theory unifies Type-IIb three branes and M-theory five branes.We elucidate the interplay between gauge and supersymmetry anomalies in six-dimensional $N=1$ supergravity with generalized couplings between tensor and vector multiplets. We derive the structure of the five-dimensional supergravity resulting from the $S_1$ reduction of these models and give the constraints on Chern-Simons couplings that follow from duality to $M$ theory compactified on a Calabi-Yau threefold. The duality is supported only on a restricted class of Calabi-Yau threefolds and requires a special type of intersection form. We derive five-dimensional central-charge formulas and discuss briefly the associated phase transitions. Finally, we exhibit connections with $F$-theory compactifications on Calabi-Yau manifolds that admit elliptic fibrations. This analysis suggests that $F$ theory unifies Type-$IIb$ three branes and $M$-theory five branes.We elucidate the interplay between gauge and supersymmetry anomalies in six-dimensional N = 1 supergravity with generalized couplings between tensor and vector multiplets. We derive the structure of the five-dimensional supergravity resulting from the S 1 reduction of these models and give the constraints on Chem-Simons couplings that follow from duality to M -theory compactified on a Calabi-Yau threefold. The duality is supported only on a restricted class of Calabi-Yau threefolds and requires a special type of intersection form. We derive five-dimensional central-charge formulas and briefly discuss the associated phase transitions. Finally, we exhibit connections with F -theory compactifications on Calabi-Yau manifolds that admit elliptic fibrations. This analysis suggests that F -theory unifies type-IIb three-branes and M -theory five-branes
Dimensionally continued Oppenheimer-Snyder gravitational collapse ; 2, solutions in odd dimensions

The Lovelock gravity extends the theory of general relativity to higher dimensions in such a way that the field equations remain of second order. The theory has many constant coefficients with no a priori meaning. Nevertheless it is possible to reduce them to two, the cosmological constant and Newton's constant. In this process one separates theories in even dimensions from theories in odd dimensions. In a previous work gravitational collapse in even dimensions was analysed. In this work attention is given to odd dimensions. It is found that black holes also emerge as the final state of gravitational collapse of a regular dust fluid
Searches for neutral Higgs bosons in $e^{+}e^{-}$ collisions at centre-of-mass energies from 192 to 202 GeV

Searches for neutral Higgs bosons are performed with the 237 pb^-1 of data collected in 1999 by the ALEPH detector at LEP, for centre-of-mass energies between 191.6 and 201.6 GeV. These searches apply to Higgs bosons within the context of the Standard Model and its minimal supersymmetric extension (MSSM) as well as to invisibly decaying Higgs bosons. No evidence of a signal is seen. A lower limit on the mass of the Standard Model Higgs boson of 107.7 GeV/c^2 at 95% confidence level is set. In the MSSM, lower limits of 91.2 and 91.6 GeV/c^2 are derived for the masses of the neutral Higgs bosons h and A, respectively. For a Higgs boson decaying invisibly and produced with the Standard Model cross section, masses below 106.4 GeV/c^2 are excluded
Quark number susceptibilities from lattice QCD

Results from our recent investigations of quark number susceptibilities in both quenched and 2-flavour QCD are presented as a function of valence quark mass and temperature. A strong reduction (approx. 40%) is seen in the strange quark susceptibility above T_c in both the cases. A comparison of our isospin susceptibility results with the corresponding weak coupling expansion reveals once again the non-perturbative nature of the plasma up to 3T_c. Evidence relating the susceptibility to another non-perturbative phenomena, pionic screening lengths, is presented
Special geometry of Calabi-Yau compactifications near a rigid limit

We discuss, in the framework of special Kahler geometry, some aspects of the
"rigid limit" of type IIB string theory compactified on a Calabi-Yau threefold.
We outline the general idea and demonstrate by direct analysis of a specific
example how this limit is obtained. The decoupling of gravity and the reduction
of special Kahler geometry from local to rigid is demonstrated explicitly,
without first going to a noncompact approximation of the Calabi-Yau. In doing
so, we obtain the Seiberg-Witten Riemann surfaces corresponding to different
rigid limits as degenerating branches of a higher genus Riemann surface,
defined for all values of the moduli. Apart from giving a nice geometrical
picture, this allows one to calculate easily some gravitational corrections to
e.g. the Seiberg-Witten central charge formula. We make some connections to the
2/5-brane picture, also away from the rigid limit, though only at the formal
level.Comment: 6 pages, latex, no figures; to appear in the proceedings of "Quantum
  aspects of gauge theories, supersymmetry and unification", Neuchatel
  University, 18-23 September 199
Equilibrium sizes of jellium metal clusters in the stabilized
  spin-polarized jellium model

We have used the stabilized spin-polarized jellium model to calculate the
equilibrium sizes of metal clusters. Our self-consistent calculations in the
local spin-density approximation show that for an $N$-electron cluster, the
equilibrium is achieved for a configuration in which the difference in the
numbers of up-spin and down-spin electrons is zero or unity, depending on the
total number of electrons. That is, a configuration in which the spins are
maximally compensated. This maximum spin-compensation results in both the
alternation in the average distance between the nearest neighbor ions and the
odd-even alternations in the ionization energies of alkali metal clusters, in a
good agreement with the molecular dynamics findings and the experiment. These
suggest a realistic and more accurate method for calculating the properties of
metal clusters in the context of jellium model than previous jellium model
methods.Comment: 11 pages LaTex, 10 Postscript figures, to appear in Physica Status
  Solidi B 224 (3), (2001
Fluid Models for Kinetic Effects on Coherent Nonlinear Alfven Waves. II.
  Numerical Solutions

The influence of various kinetic effects (e.g. Landau damping, diffusive and
collisional dissipation, and finite Larmor radius terms) on the nonlinear
evolution of finite amplitude Alfvenic wave trains in a finite-beta environment
is systematically investigated using a novel, kinetic nonlinear Schrodinger
(KNLS) equation. The dynamics of Alfven waves is sensitive to the sense of
polarization as well as the angle of propagation with respect to the ambient
magnetic field. Numerical solution for the case with Landau damping reveals the
formation of dissipative structures, which are quasi-stationary, S-polarized
directional (and rotational) discontinuities which self-organize from parallel
propagating, linearly polarized waves. Parallel propagating circularly
polarized packets evolve to a few circularly polarized Alfven harmonics on
large scales. Stationary arc-polarized rotational discontinuities form from
obliquely propagating waves. Collisional dissipation, even if weak, introduces
enhanced wave damping when beta is very close to unity. Cyclotron motion
effects on resonant particle interactions introduce cyclotron resonance into
the nonlinear Alfven wave dynamics.Comment: 38 pages (including 23 figures and 1 table
On multi-particle entanglement

We build, using group-theoretic methods, a general framework for approaching
multi-particle entanglement. As far as entanglement is concerned, two states of
n spin-1/2 particles are equivalent if they are on the same orbit of the group
of local rotations (U(2)^n). We give a method for finding the number of
parameters needed to describe inequivalent n spin-1/2 particles states. We also
describe how entanglement of states on a given orbit may be characterized by
the stability group of the action of the group of local rotations on any point
on the orbit.Comment: 16 pages, LaTe
Kinematic Discrimination of tW and tt Productions Using Initial State
  Radiation

Production of a single top quark provides excellent opportunity for
understanding top quark physics and Cabibbo-Kobayashi-Maskawa structure of the
quark sector in the Standard Model. Although an associated production with a
b-quark has already been observed at the Tevatron in 2009, a single top
production in association with a W gauge boson has not been observed till 2014
at the LHC, where pair production of the top quark serves as the dominant
background. Due to the kinematic similarity between tW and the dominant
background, it is challenging to find suitable kinematic variables that offer
good signal-background separation, which naturally leads to the use of
multivariate methods. In this paper, we investigate kinematic structure of tW+j
channel using M_T2 and invariant mass variables, and find that tW +j production
could well be separated from tt production with high purity at a low cost of
statistics when utilizing these kinematic correlations.Comment: 15 pages, 11 figures, 3 tables, journal submitted version, references
  adde
The SCUBA-2 Cosmology Legacy Survey: ALMA resolves the bright-end of the
  sub-millimeter number counts

We present high-resolution 870-um ALMA continuum maps of 30 bright
sub-millimeter sources in the UKIDSS UDS field. These sources are selected from
deep, 1-square degrees 850-um maps from the SCUBA--2 Cosmology Legacy Survey,
and are representative of the brightest sources in the field (median SCUBA2
flux S_850=8.7+/-0.4 mJy). We detect 52 sub-millimeter galaxies (SMGs) at
>4-sigma significance in our 30 ALMA maps. In 61+/-17% of the ALMA maps the
single-dish source comprises a blend of >=2 SMGs, where the secondary SMGs are
Ultra--Luminous Infrared Galaxies (ULIRGs) with L_IR>10^12 Lo. The brightest
SMG contributes on average 80+/-4% of the single-dish flux density, and in the
ALMA maps containing >=2 SMGs the secondary SMG contributes 25+/-3% of the
integrated ALMA flux. We construct source counts and show that multiplicity
boosts the apparent single-dish cumulative counts by 20% at S_870>7.5mJy, and
by 60% at S_870>12mJy. We combine our sample with previous ALMA studies of
fainter SMGs and show that the counts are well-described by a double power-law
with a break at 8.5+/-0.6mJy. The break corresponds to a luminosity of
~6x10^12Lsol or a star-formation rate of ~1000Mo/yr. For the typical sizes of
these SMGs, which are resolved in our ALMA data with r=1.2+/-0.1kpc, this
yields a limiting SFR density of ~100Msol/yr/kpc2. Finally, the number density
of S_870>2mJy SMGs is 80+/-30 times higher than that derived from blank-field
counts. An over-abundance of faint SMGs is inconsistent with line-of-sight
projections dominating multiplicity in the brightest SMGs, and indicates that a
significant proportion of these high-redshift ULIRGs must be physically
associated.Comment: 14 pages, 6 figures. ApJ in pres