pinecone/core-2020-05-10-deduplication huggingface dataset:
On the irrelevance of the Gribov issue in N=4 Super Yang-Mills in the
  Landau gauge

The issue of the Gribov copies is discussed in Euclidean N=4 Super Yang-Mills
theory quantized in the Landau gauge. As a consequence of the absence of a
renormalization group invariant scale, it turns out that it is not possible to
attach a dynamical meaning to the Gribov parameter. This implies that, in N=4
Super Yang-Mills, there is no need for the restriction of the domain of
integration in the functional integral to the Gribov region, and no
non-perturbative dynamical scale is generated. This result is in agreement with
the absence of a confining phase observed from the Coulomb behaviour of the
Wilson loop evaluated through the AdS/CFT correspondence. The
non-renormalization theorem of the gluon-ghost-antighost vertex of the Landau
gauge is also explicitly checked till three loops.Comment: 10 pages, no figures; v2: discussion on the ghost propagator added,
  matches version to appear in PL
GJ 832c: A super-earth in the habitable zone

We report the detection of GJ 832c, a super-Earth orbiting near the inner
edge of the habitable zone of GJ 832, an M dwarf previously known to host a
Jupiter analog in a nearly-circular 9.4-year orbit. The combination of precise
radial-velocity measurements from three telescopes reveals the presence of a
planet with a period of 35.68+/-0.03 days and minimum mass (m sin i) of
5.4+/-1.0 Earth masses. GJ 832c moves on a low-eccentricity orbit
(e=0.18+/-0.13) towards the inner edge of the habitable zone. However, given
the large mass of the planet, it seems likely that it would possess a massive
atmosphere, which may well render the planet inhospitable. Indeed, it is
perhaps more likely that GJ 832c is a "super-Venus," featuring significant
greenhouse forcing. With an outer giant planet and an interior, potentially
rocky planet, the GJ 832 planetary system can be thought of as a miniature
version of our own Solar system.Comment: Accepted for publication in Ap
The Mass-Loss Return from Evolved Stars to the Large Magellanic Cloud
  II: Dust Properties for Oxygen-Rich Asymptotic Giant Branch Stars

We model multi-wavelength broadband UBVIJHKs and Spitzer IRAC and MIPS
photometry and IRS spectra from the SAGE and SAGE-Spec observing programs of
two oxygen-rich asymptotic giant branch (O-rich AGB) stars in the Large
Magellanic Cloud (LMC) using radiative transfer models of dust shells around
stars. We chose a star from each of the bright and faint O-rich AGB populations
found by earlier studies of the SAGE sample in order to derive a baseline set
of dust properties to be used in the construction of an extensive grid of
radiative transfer models of the O-rich AGB stars found in the SAGE surveys.
From the bright O-rich AGB population we chose HV 5715, and from the faint
O-rich AGB population we chose SSTISAGE1C J052206.92-715017.6 (SSTSAGE052206).
We found the complex indices of refraction of oxygen-deficient silicates from
Ossenkopf et al (1992) and a "KMH"-like grain size distribution with gamma of
-3.5, a_min of 0.01 microns, and a_0 of 0.1 microns to be reasonable dust
properties for these models. There is a slight indication that the dust around
the faint O-rich AGB may be more silica-rich than that around the bright O-rich
AGB. Simple models of gas emission suggest a relatively extended gas envelope
for the faint O-rich AGB star modeled, consistent with the relatively large
dust shell inner radius for the same model. The models compute the dust
mass-loss rates for the two stars to be 2.0x10^-9 M_Sun/yr and 2.3x10^-9
M_Sun/yr, respectively. When a dust-to-gas mass ratio of 0.002 is assumed for
SSTSAGE052206 and HV 5715, the dust mass-loss rates imply total mass-loss rates
of 1.0x10^-6 M_Sun/yr and 1.2x10^-6 M_Sun/yr, respectively. These properties of
the dust shells and stars, as inferred from our models of the two stars, are
found to be consistent with properties observed or assumed by detailed studies
of other O-rich AGB stars in the LMC and elsewhere.Comment: 37 pages, 3 figures, appeared in the 10 June 2010 issue of the
  Astrophysical Journa
The braiding for representations of q-deformed affine $sl_2$

We compute the braiding for the `principal gradation' of $U_q(\hat{{\it
sl}_2})$ for $|q|=1$ from first principles, starting from the idea of a rigid
braided tensor category. It is not necessary to assume either the crossing or
the unitarity condition from S-matrix theory. We demonstrate the uniqueness of
the normalisation of the braiding under certain analyticity assumptions, and
show that its convergence is critically dependent on the number-theoretic
properties of the number $\tau$ in the deformation parameter $q=e^{2\pi
i\tau}$. We also examine the convergence using probability, assuming a uniform
distribution for $q$ on the unit circle.Comment: LaTeX, 10 pages with 2 figs, uses epsfi
Nonabelian Born-Infeld from Super-Yang-Mills effective action

We discuss recent results on one-loop contributions to the effective action
in {\cal N}=4 supersymmetric Yang-Mills theory in four dimensions.
Contributions with five external vector fields are compared with corresponding
ones in open superstring theory in order to understand the relation with the
F^5 terms that appear in the nonabelian generalization of the Born-Infeld
action.Comment: 6 pages, to appear in the proceedings of the RTN meeting ``The
  Quantum Structure of Spacetime and the Geometric Nature of Fundamental
  Interactions'', (Corfu`, September 2001
No-scale N=4 supergravity coupled to Yang-Mills: the scalar potential
  and super-Higgs effect

We derive the scalar potential of the effective theory of type
  IIB orientifold with 3-form fluxes turned on in presence of non abelian brane
coordinates. N=4 supergravity predicts a positive semidefinite potential with
vanishing cosmological constant in the vacuum of commuting coordinates, with a
classical moduli space given by three radial moduli and three RR scalars which
complete three copies of the coset (U(1,1+n)/U(1)\otimes U(1+n)), together with
6n D3-branes coordinates, n being the rank of the gauge group G. Implications
for the super Higgs mechanism are also discussed.Comment: misprints correcte
Radiation driven winds from luminous accretion disks

We study the 2-D, time-dependent hydrodynamics of radiation-driven winds from accretion disks in which the radiation force is mediated by spectral lines. If the dominant contribution to the total radiation field comes from the disk, then we find the outflow is intrinsically unsteady and characterised by large amplitude velocity and density changes. Both infall and outflow can occur in different regions of the wind at the same time. On the other hand, if the total luminosity of the system is dominated by the central star, then the outflow is steady. In either case, we find the 2-D structure of the wind consists of a dense, slow outflow, typically confined to angles within about 45$^o$ of the equatorial plane, that is bounded on the polar side by a high -velocity, lower density stream. The flow geometry is controlled largely by the geometry of the radiation field. Global properties e.g., the total mass loss rate and terminal velocity depend more on the system luminosity and are insensitive to geometry. Matter is fed into the fast wind from within a few stellar radii of the central star. Our solutions agree qualitatively with the kinematics of outflows in CV systems inferred from spectroscopic observations. We predict that low luminosity systems may display unsteady behavior in wind-formed spectral lines. Our study also has application to winds from active galactic nuclei and from high mass YSOs
A New Orientifold of $C^{2}/Z_{N}$ and Six-dimensional RG Fixed Points

We discuss the consistency conditions of a novel orientifold projection of type IIB string theory on C^2/Z_N singularities, in which one mods out by the combined action of world-sheet parity and a geometric operation which exchanges the two complex planes. The field theory on the world-volume of D5-brane probes defines a family of six-dimensional RG fixed points, which had been previously constructed using type IIA configurations of NS-branes and D6-branes in the presence of O6-planes. Both constructions are related by a T-duality transforming the set of NS-branes into the C^2/Z_N singularity. We also construct additional models, where both the standard and the novel orientifold projections are imposed. They have an interesting relation with orientifolds of D_K singularities, and provide the T-duals of certain type IIA configurations containing both O6- and O8-planes.We discuss the consistency conditions of a novel orientifold projection of type IIB string theory on C^2/Z_N singularities, in which one mods out by the combined action of world-sheet parity and a geometric operation which exchanges the two complex planes. The field theory on the world-volume of D5-brane probes defines a family of six-dimensional RG fixed points, which had been previously constructed using type IIA configurations of NS-branes and D6-branes in the presence of O6-planes. Both constructions are related by a T-duality transforming the set of NS-branes into the C^2/Z_N singularity. We also construct additional models, where both the standard and the novel orientifold projections are imposed. They have an interesting relation with orientifolds of D_K singularities, and provide the T-duals of certain type IIA configurations containing both O6- and O8-planes.We discuss the consistency conditions of a novel orientifold projection of type IIB string theory on C 2 / Z N singularities, in which one mods out by the combined action of world-sheet parity and a geometric operation which exchanges the two complex planes. The field theory on the world-volume of D5-brane probes defines a family of six-dimensional RG fixed points, which had been previously constructed using type IIA configurations of NS-branes and D6-branes in the presence of O6-planes. Both constructions are related by a T-duality transforming the set of NS-branes into the C 2 / Z N singularity. We also construct additional models, where both the standard and the novel orientifold projections are imposed. They have an interesting relation with orientifolds of D K singularities, and provide the T-duals of certain type IIA configurations containing both O6- and O8-planes
Structure Functions at Very High $Q^{2}$ From HERA

Measurements of Deep-Inelastic Neutral and Charged current interactions are presented in lepton proton scattering at HERA. The measurements are obtained from taken during 1996 to 1999 and consists of $30 \rm{pb^{-1}}$ of $e^+p$ and $16 \rm{pb^{-1}}$ of $e^-p$ data. The addition of the new high statistics electron data with the positron data allows the first extraction of the parity violating structure function $xF_3$ and tests of high-$Q^2$ electroweak effects of the heavy bosons $Z^0$ and $W$ are observed and found to be consistent with the Standard Model expectation
Non-Semisimple Gaugings of D=5 N=8 Supergravity

The recent construction of the non-semisimple gaugings of maximal D=5 supergravity is reported here. This construction is worked out in the so-called rheonomic approach, based on Free Differential Algebras and the solution of their Bianchi identities. In this approach the dualization mechanism between one-forms and two-forms is more transparent. The lagrangian is unnecessary since the field equations follow from closure of the supersymmetry algebra. These theories contain 12-r self-dual two-forms and 15+r gauge vectors, r of which are abelian and neutral. Such theories, whose existence has been proved and their supersymmetry algebra constructed, have potentially interesting properties in relation with domain wall solutions and the trapping of gravity
On a class of periodic quasilinear Schr\"{o}dinger equations involving
  critical growth in ${\BR}^2$

We consider the equation $- \Delta u+V(x)u- k(\Del(|u|^{2}))u=g(x,u), u>0, x
\in {\BR}^2,$ where $V:{\BR}^2\to {\BR}$ and $g:{\BR}^2 \times {\BR}\to {\BR}$
are two continuous $1-$periodic functions. Also, we assume $g$ behaves like
$\exp (\beta |u|^4)$ as $|u|\to \infty.$ We prove the existence of at least one
weak solution $u \in H^1({\BR}^2)$ with $u^2 \in H^1({\BR}^2).$ Mountain pass
in a suitable Orlicz space together with Moser-Trudinger are employed to
establish this result. Such equations arise when one seeks for standing wave
solutions for the corresponding quasilinear Schr\"{o}dinger equations.
Schr\"{o}dinger equations of this type have been studied as models of several
physical phenomena. The nonlinearity here corresponds to the superfluid film
equation in plasma physics
The Anapole Moment of the Deuteron with the Argonne v18 Nucleon-Nucleon
  Interaction Model

We calculate the deuteron anapole moment with the wave functions obtained
from the Argonne $v18$ nucleon-nucleon interaction model. The anapole moment
operators are considered at the leading order. To minimize the uncertainty due
to a lack of current conservation, we calculate the matrix element of the
anapole moment from the original definition. In virtue of accurate wave
functions, we can obtain a more precise value of the deuteron anapole moment
which contains less uncertainty than the former works. We obtain a result
reduced by more than 25% in the magnitude of the deuteron anapole moment. The
reduction of individual nuclear contributions is much more important however,
varying from a factor 2 for the spin part to a factor 4 for the convection and
associated two-body currents.Comment: 11 pages, 2 figure
Estimate of Contribution from P-D Mixing in Atomic PNC

We investigate possible contributions to future atomic parity nonconservation
(PNC) experiments from parity admixtures between single-electron atomic states
with total angular momentum $j = 3/2$. We develop new formalism for studying
these admixtures between atomic $p$ and $d$ states, which enter only when
finite nuclear size effects are considered and have been neglected in the
literature to date. We use analytic approximations to provide an
order-of-magnitude estimate of the contribution from these admixtures, and
identify a dimensionless ratio which sets the scale of the correction. Using
realistic numerical wavefunctions in \baplus we confirm the results of our
analytic expressions, and conclude quantitatively that these novel admixtures
are likely to be negligible in essentially all cases.Comment: 11 pages, no figures, submitted to Phys Lett
Vibroacoustics of the piano soundboard : (Non)linearity and modal properties in the low- and mid-frequency ranges

The piano soundboard transforms the string vibration into sound and therefore, its vibrations are of primary importance for the sound characteristics of the instrument. An original vibro-acoustical method is presented to isolate the soundboard nonlinearity from that of the exciting device (here: a loudspeaker) and to measure it. The nonlinear part of the soundboard response to an external excitation is quantitatively estimated for the ﬁrst time, at 40 dB below the linear part at the ff nuance. Given this essentially linear response, a modal identiﬁcation is performed up to 3 kHz by means of a novel high resolution modal analysis technique [K. Ege, X. Boutillon, B. David, High-resolution modal analysis, Journal of Sound and Vibration 325 (4–5) (2009) 852–869]. Modal dampings (which, so far, were unknown for the piano in this frequency range) are determined in the mid-frequency domain where FFT-based methods fail to evaluate them with an acceptable precision. They turn out to be close to those imposed by wood. A ﬁnite-element modelling of the soundboard is also presented. The low-order modal shapes and the comparison between the corresponding experimental and numerical modal frequencies suggest that the boundary conditions can be considered as blocked, except at very low frequencies. The frequency-dependency of the estimated modal densities and the observation of modal shapes reveal two well-separated regimes. Below  1 kHz, the soundboard vibrates more or less like a homogeneous plate. Above that limit, the structural waves are conﬁned by ribs, as already noticed by several authors, and localised in restricted areas (one or a few inter-rib spaces), presumably due to a slightly irregular spacing of the ribs across the soundboard
Source of a Prominent Poleward Surge During Solar Cycle 24

As an observational case study, we consider the origin of a prominent
poleward surge of leading polarity, visible in the magnetic butterfly diagram
during Solar Cycle 24. A new technique is developed for assimilating individual
regions of strong magnetic flux into a surface flux transport model. By
isolating the contribution of each of these regions, the model shows the surge
to originate primarily in a single high-latitude activity group consisting of a
bipolar active region present in Carrington Rotations 2104-05 (November
2010-January 2011) and a multipolar active region in Rotations 2107-08
(February-April 2011). This group had a strong axial dipole moment opposed to
Joy's law. On the other hand, the modelling suggests that the transient
influence of this group on the butterfly diagram will not be matched by a large
long-term contribution to the polar field, because of its location at high
latitude. This is in accordance with previous flux transport models.Comment: 15 pages, 8 figures, accepted for publication in Solar Physic
Study of shear viscosity of SU (2)-gluodynamics within lattice
  simulation

This paper is devoted to the study of two-point correlation function of the
energy-momentum tensor T_{12}T_{12} for SU(2)-gluodynamics within lattice
simulation of QCD. Using multilevel algorithm we carried out the measurement of
the correlation function at the temperature T/T_c = 1.2. It is shown that
lattice data can be described by spectral functions which interpolate between
hydrodynamics at low frequencies and asymptotic freedom at high frequencies.
The results of the study of spectral functions allowed us to estimate the ratio
of shear viscosity to the entropy density {\eta}/s = 0.134 +- 0.057.Comment: 7 pages, 3 figure
The star formation rate cookbook at 1 < z < 3: Extinction-corrected
  relations for UV & [OII]{\lambda}3727 luminosities

We use a spectroscopic sample of 286 star-forming galaxies (SFGs) at 1<z<3
from the GMASS survey to study different star formation rate (SFR) estimators.
Infrared (IR) data are used to derive empirical calibrations to correct
ultraviolet (UV) and [OII]{\lambda}3727 luminosities for dust extinction and
dust-corrected estimates of SFR. In the selection procedure we fully exploit
the available spectroscopic information. On the basis of three continuum
indices, we are able to identify and exclude from the sample galaxies in which
old stellar populations might bring a non-negligible contribution to IR
luminosity (LIR) and continuum reddening. Using Spitzer-MIPS and Herschel-PACS
data we derive LIR for two-thirds of our sample. The LIR/LUV ratio is used as a
probe of effective attenuation (AIRX) to search for correlations with continuum
and spectroscopic features. The relation between AIRX and UV continuum slope
({\beta}) was tested for our sample and found to be broadly consistent with the
literature results at the same redshift, though with a larger dispersion with
respect to UV-selected samples. We find a correlation between the rest-frame
equivalent width (EW) of the [OII]{\lambda}3727 line and {\beta}, which is the
main result of this work. We therefore propose the [OII]{\lambda}3727 line EW
as a dust attenuation probe and calibrate it through AIRX, though the
assumption of a reddening curve is still needed to derive the actual
attenuation towards the [OII]{\lambda}3727 line. We tested the issue of
differential attenuation towards stellar continuum and nebular emission: our
results are in line with the traditional prescription of extra attenuation
towards nebular lines. A set of relations is provided that allows the recovery
of the total unattenuated SFR from UV and [OII]{\lambda}3727 luminosities.
(Abridged)Comment: Accepted for publication in A&A; 20 pages, 19 figures, 5 table
Associations between maternal older age, family environment and parent and child wellbeing in families using assisted reproductive techniques to conceive.

Maternal age effects on parenting and family outcomes are of increasing interest because of the demographic shift toward older maternal age at first birth. Maternal age is also of interest because of the greater use of assisted reproductive techniques (ART) to bypass age-related infertility in couples trying to conceive late in the reproductive life cycle of the woman. The aim of the present study was to investigate maternal age effects associated with delayed parenting by comparing families of mothers who gave birth at a younger (<31 years) or older (>38 years) age and to ascertain whether associations were linear associations by comparing these groups to women who had conceived in between these ages (i.e., >31 and <38 years). All children (4-11 year olds) were first-born and conceived using ART. Participants were recruited from one of 20 fertility clinics and mothers (n = 642) and fathers (n = 439) completed a postal questionnaire about demographic and reproductive characteristics, family environment as well as parent and child wellbeing. Our results demonstrate that parenthood via assisted conception later in the reproductive life cycle is not associated with a negative impact on child wellbeing. Despite maternal age-group differences on demographic (education, income) and reproductive characteristics (bleeding during pregnancy, caesarean rate, breast feeding), and parental warmth and depressive symptoms, child wellbeing was similar across mother age groups. We conclude that the parenting context is different for older mother families (more depressive symptoms in mothers and fathers, less expressed warmth in the couple) but that this difference is not associated with child wellbeing in early and middle childhood. © 2009 Elsevier Ltd. All rights reserved
Formation of S0 galaxies through mergers Explaining angular momentum and concentration change from spirals to S0s

The CALIFA team has recently found that the stellar angular momentum and concentration of late-type spiral galaxies are incompatible with those of lenticular galaxies (S0s), concluding that fading alone cannot satisfactorily explain the evolution from spirals into S0s. Here we explore whether major mergers can provide an alternative way to transform spirals into S0s by analysing the spiral-spiral major mergers from the GalMer database that lead to realistic, relaxed S0-like galaxies. We find that the change in stellar angular momentum and concentration can explain the differences in the λ_Re-R_90/R_50 plane found by the CALIFA team. Major mergers thus offer a feasible explanation for the transformation of spirals into S0s
Toward a model for forming psychological safety climate in construction project management

The nature of construction projects and their delivery exposes participants to accidents and dangers. Safety climate serves as a frame of reference for employees to make sense of safety measures in the workplace and adapt their behaviors. Though safety climate research abounds, fewer efforts are made to investigate the formation of a safety climate. An effort to explore forming psychological safety climate, an operationalization of safety climate at the individual level, is an appropriate starting point. Taking the view that projects are social processes, this paper develops a conceptual framework of forming the psychological safety climate, and provides a preliminary validation. The model suggests that management can create the desired psychological safety climate by efforts from structural, perceptual, interactive, and cultural perspectives. Future empirical research can be built on the model to provide a more comprehensive and coherent picture of the determinants of safety climate