pinecone/core-2020-05-10-deduplication huggingface dataset:
Exact Extended Supersymmetry on a Lattice: Twisted N=4 Super Yang-Mills
  in Three Dimensions

We propose a lattice formulation of three dimensional super Yang-Mills model
with a twisted N=4 supersymmetry. The extended supersymmetry algebra of all the
eight supercharges is fully and exactly realized on the lattice with a modified
"Leibniz rule". The formulation we employ here is a three dimensional extension
of manifestly gauge covariant method which was developed in our previous
proposal of Dirac-Kaehler twisted N=2 super Yang-Mills on two dimensional
lattice. The twisted N=4 supersymmetry algebra is geometrically realized on a
three dimensional lattice with link supercharges and the use of "shifted"
(anti-)commutators. A possible solution to the recent critiques on the link
formulation will be discussed.Comment: 17 pages, 11 figures; v2 a reference added; v3 appendix adde
Limits on neutral Higgs boson production in the forward region in pp collisions at s√=7 TeV

Limits on the cross-section times branching fraction for neutral Higgs bosons, produced in pp collisions at TeX TeV, and decaying to two tau leptons with pseudorapidities between 2.0 and 4.5, are presented. The result is based on a dataset, corresponding to an integrated luminosity of 1.0 fb−1, collected with the LHCb detector. Candidates are identified by reconstructing final states with two muons, a muon and an electron, a muon and a hadron, or an electron and a hadron. A model independent upper limit at the 95% confidence level is set on a neutral Higgs boson cross-section times branching fraction. It varies from 8.6 pb for a Higgs boson mass of 90 GeV to 0.7 pb for a Higgs boson mass of 250 GeV, and is compared to the Standard Model expectation. An upper limit on tan β in the Minimal Supersymmetric Model is set in the TeX scenario. It ranges from 34 for a CP -odd Higgs boson mass of 90 GeV to 70 for a pseudo-scalar Higgs boson mass of 140 GeV
A trio of dualities : walls, trees and cascades.

We study the RG flow of = 1 world-volume gauge theories of D3-brane probes on certain singular Calabi-Yau threefolds. Taking the gauge theories out of conformality by introducing fractional branes, we compute the NSVZ beta-function and follow the subsequent RG flow in the cascading manner of Klebanov-Strassler. We study the duality trees that blossom from various Seiberg dualities and encode possible cascades. We observe the appearance of duality walls, a finite limit energy scale in the UV beyond which the dualization cascade cannot proceed. Diophantine equations of the Markov type characterize the dual phases of these theories. We discuss how the classification of Markov equations for different geometries into families relates the RG flows of the corresponding gauge theories
Observations of the BLAZAR 3C 66A with the MAGIC telescopes in stereoscopic mode\ud

We report new observations of the intermediate-frequency peaked BL Lacertae object 3C 66A with the MAGIC telescopes. The data sample we use were taken in 2009 December and 2010 January, and comprises 2.3 hr of good quality data in stereoscopic mode. In this period, we find a significant signal from the direction of the blazar 3C 66A. The new MAGIC stereoscopic system is shown to play an essential role for the separation between 3C 66A and the nearby radio galaxy 3C 66B, which is at a distance of only 6'. The derived integral flux above 100 GeV is 8.3% of the Crab Nebula flux and the energy spectrum is reproduced by a power law of photon index 3.64 +/- 0.39(stat) +/- 0.25(sys). Within errors, this is compatible with the one derived by VERITAS in 2009. From the spectra corrected for absorption by the extragalactic background light, we only find small differences between the four models that we applied, and constrain the redshift of the blazar to z < 0.68.\u
Socioeconomic and geographic inequalities in adolescent smoking : a multilevel cross-sectional study of 15 year olds in Scotland

This work was supported by NHS Health Scotland and the Ludwig Boltzmann Institute. R. Dundas was funded by the Medical Research Council/ Chief Scientist Office programme grant MC_UU_12017/5.The objective of the study was to present socioeconomic and geographic inequalities in adolescent smoking in Scotland. The international literature suggests there is no obvious pattern in the geography of adolescent smoking, with rural areas having a higher prevalence than urban areas in some countries, and a lower prevalence in others. These differences are most likely due to substantive differences in rurality between countries in terms of their social, built and cultural geography. Previous studies in the UK have shown an association between lower socioeconomic status and smoking. The Scotland Health Behaviour in School-aged Children study surveyed 15 year olds in schools across Scotland between March and June of 2010. We ran multilevel logistic regressions using Markov chain Monte Carlo method and adjusting for age, school type, family affluence, area level deprivation and rurality. We imputed missing rurality and socioeconomic data using multivariate imputation by chained equations, and re-analysed the data (N=3577), comparing findings. Among boys, smoking was associated only with area-level deprivation. This relationship appeared to have a quadratic S-shape, with those living in the second most deprived quintile having highest odds of smoking. Among girls, however, odds of smoking increased with deprivation at individual and area-level, with an approximate dose-response relationship for both. Odds of smoking were higher for girls living in remote and rural parts of Scotland than for those living in urban areas. Schools in rural areas were no more or less homogenous than schools in urban areas in terms of smoking prevalence. We discuss possible social and cultural explanations for the high prevalence of boys’ and girls’ smoking in low SES neighbourhoods and of girls’ smoking in rural areas. We consider possible differences in the impact of recent tobacco policy changes, primary socialization access and availability, retail outlet density and the home environment.Publisher PDFPeer reviewe
A Measurement of Coherent Neutral Pion Production in Neutrino Neutral
  Current Interactions in NOMAD

We present a study of exclusive neutral pion production in neutrino-nucleus
Neutral Current interactions using data from the NOMAD experiment at the CERN
SPS. The data correspond to $1.44 \times 10^6$ muon-neutrino Charged Current
interactions in the energy range $2.5 \leq E_{\nu} \leq 300$ GeV. Neutrino
events with only one visible $\pi^0$ in the final state are expected to result
from two Neutral Current processes: coherent $\pi^0$ production, {\boldmath
$\nu + {\cal A} \to \nu + {\cal A} + \pi^0$} and single $\pi^0$ production in
neutrino-nucleon scattering. The signature of coherent $\pi^0$ production is an
emergent $\pi^0$ almost collinear with the incident neutrino while $\pi^0$'s
produced in neutrino-nucleon deep inelastic scattering have larger transverse
momenta. In this analysis all relevant backgrounds to the coherent $\pi^0$
production signal are measured using data themselves. Having determined the
backgrounds, and using the Rein-Sehgal model for the coherent $\pi^0$
production to compute the detection efficiency, we obtain {\boldmath $4630 \pm
522 (stat) \pm 426 (syst)$} corrected coherent-$\pi^0$ events with $E_{\pi^0}
\geq 0.5$ GeV. We measure {\boldmath $\sigma (\nu {\cal A} \to \nu {\cal A}
\pi^0) = [ 72.6 \pm 8.1(stat) \pm 6.9(syst) ] \times 10^{-40} cm^2/nucleus$}.
This is the most precise measurement of the coherent $\pi^0$ production to
date.Comment: 23 pages, 9 figures, accepted for publication in Phys. Lett.
Micro-Raman and resistance measurements of epitaxial La0.7Sr0.3MnO3
  films

The Channel-Spark method was used for deposition of highly oriented
ferromagnetic La0.7Sr0.3MnO3 films on NdGaO3 substrates. It was found that
additional oxygen decreases the film quality suppressing the Curie temperature
and metal-insulator transition below the room temperature. To achieve the best
quality of the films the samples were either annealed in high vacuum at
deposition temperature or even deposited in argon atmosphere with no oxygen
annealing. For such films the resistive measurements showed a metallic
behaviour in the interval 10-300 K in accordance with the high Curie point (Tc
350 K). Micro-Raman analysis indicate that the La0.7Sr0.3MnO3 films are well
ordered, while some outgrowths show stoichiometrical deviations.Comment: 7 pages, 4 figure
Studies of correlations between D and ${\bar D}$ mesons in high energy
  photoproduction

Studies of $D{\bar D}$ correlations for a large sample of events containing
fully and partially reconstructed pairs of charmed $D$ mesons recorded by the
Fermilab photoproduction experiment FOCUS (FNAL-E831) are presented.
Correlations between $D$ and ${\bar D}$ mesons are used to study heavy quark
production dynamics. We present results for fully and partially reconstructed
charm pairs and comparisons to a recent version of \textsc{Pythia} with default
parameter settings. We also comment on the production of $\psi(3770)$ in our
data.Comment: 14 pages, 4 figure
Electron-neutrino survival probability from solar-neutrino data

With SNO data on electron-neutrino flux from the sun, it is possible to
derive the $\nu_e$ survival probability $P_{ee}(E)$ from existing experimental
data of Super-Kamiokande, gallium experiments and Homestake. The combined data
of SNO and Super-Kamiokande provide boron $\nu_e$ flux and the total flux of
all active boron neutrinos, giving thus $P_{ee}(E)$ for boron neutrinos. The
Homestake detector, after subtraction of the signal from boron neutrinos, gives
the flux of Be+CNO neutrinos, and $P_{ee}$ for the corresponding energy
interval, if the produced flux is taken from the Standard Solar Model (SSM).
Gallium detectors, GALLEX, SAGE and GNO, detect additionally pp-neutrinos. The
pp-flux can be calculated subtracting from the gallium signal the rate due to
boron, beryllium and CNO neutrinos. The ratio of the measured $pp$-neutrino
flux to that predicted by the SSM gives the survival probability for
$pp$-neutrinos. Comparison with theoretical survival probabilities shows that
the best (among known models) fit is given by LMA and LOW solutions.Comment: 9 pages, 3 figures, references adde
The Nuclear Spectroscopic Telescope Array (NuSTAR) Mission

The Nuclear Spectroscopic Telescope Array (NuSTAR) mission, launched on 13
June 2012, is the first focusing high-energy X-ray telescope in orbit. NuSTAR
operates in the band from 3 -- 79 keV, extending the sensitivity of focusing
far beyond the ~10 keV high-energy cutoff achieved by all previous X-ray
satellites. The inherently low-background associated with concentrating the
X-ray light enables NuSTAR to probe the hard X-ray sky with a more than
one-hundred-fold improvement in sensitivity over the collimated or coded-mask
instruments that have operated in this bandpass. Using its unprecedented
combination of sensitivity, spatial and spectral resolution, NuSTAR will pursue
five primary scientific objectives, and will also undertake a broad program of
targeted observations. The observatory consists of two co-aligned
grazing-incidence X-ray telescopes pointed at celestial targets by a three-axis
stabilized spacecraft. Deployed into a 600 km, near-circular, 6degree
inclination orbit, the Observatory has now completed commissioning, and is
performing consistent with pre-launch expectations. NuSTAR is now executing its
primary science mission, and with an expected orbit lifetime of ten years, we
anticipate proposing a guest investigator program, to begin in Fall 2014.Comment: 20 pages, 12 figures, submitted to the Astrophysical Journa
NuSTAR detection of hard X-ray phase lags from the accreting pulsar GS
  0834-430

The NuSTAR hard X-ray telescope observed the transient Be/X-ray binary GS
0834-430 during its 2012 outburst - the first active state of this system
observed in the past 19 years. We performed timing and spectral analysis, and
measured the X-ray spectrum between 3-79keV with high statistical significance.
We find the phase-averaged spectrum to be consistent with that observed in many
other magnetized accreting pulsars. We fail to detect cyclotron resonance
scattering features that would allow us to constrain the pulsar's magnetic
field in either phase-averaged or phase-resolved spectra. Timing analysis shows
a clearly detected pulse period of ~12.29s in all energy bands. The pulse
profiles show a strong, energy-dependent hard phase lag of up to 0.3 cycles in
phase, or about 4s. Such dramatic energy-dependent lags in the pulse profile
have never before been reported in high-mass X-ray binary (HMXB) pulsars.
Previously reported lags have been significantly smaller in phase and
restricted to low-energies (E<10keV). We investigate the possible mechanisms
that might produce this energy-dependent pulse phase shift. We find the most
likely explanation for this effect to be a complex beam geometry.Comment: 8 pages, 7 figures, accepted to the Astrophysical Journa
Turbulence decay towards the linearly-stable regime of Taylor-Couette
  flow

Taylor-Couette (TC) flow is used to probe the hydrodynamical stability of
astrophysical accretion disks. Experimental data on the subcritical stability
of TC are in conflict about the existence of turbulence (cf. Ji et al. Nature,
444, 343-346 (2006) and Paoletti et al., A$\&$A, 547, A64 (2012)), with
discrepancies attributed to end-plate effects. In this paper we numerically
simulate TC flow with axially periodic boundary conditions to explore the
existence of sub-critical transitions to turbulence when no end-plates are
present. We start the simulations with a fully turbulent state in the unstable
regime and enter the linearly stable regime by suddenly starting a
(stabilizing) outer cylinder rotation. The shear Reynolds number of the
turbulent initial state is up to $Re_s \sim10^5$ and the radius ratio is
$\eta=0.714$. The stabilization causes the system to behave as a damped
oscillator and correspondingly the turbulence decays. The evolution of the
torque and turbulent kinetic energy is analysed and the periodicity and damping
of the oscillations are quantified and explained as a function of shear
Reynolds number. Though the initially turbulent flow state decays,
surprisingly, the system is found to absorb energy during this decay.Comment: Preprint submitted to PRL, 12 pages, 5 figure
CANDELS+3D-HST: compact SFGs at z~2-3, the progenitors of the first
  quiescent galaxies

We analyze the star-forming and structural properties of 45 massive
(log(M/Msun)>10) compact star-forming galaxies (SFGs) at 2<z<3 to explore
whether they are progenitors of compact quiescent galaxies at z~2. The
optical/NIR and far-IR Spitzer/Herschel colors indicate that most compact SFGs
are heavily obscured. Nearly half (47%) host an X-ray bright AGN. In contrast,
only about 10% of other massive galaxies at that time host AGNs. Compact SFGs
have centrally-concentrated light profiles and spheroidal morphologies similar
to quiescent galaxies, and are thus strikingly different from other SFGs. Most
compact SFGs lie either within the SFR-M main sequence (65%) or below (30%), on
the expected evolutionary path towards quiescent galaxies. These results show
conclusively that galaxies become more compact before they lose their gas and
dust, quenching star formation. Using extensive HST photometry from CANDELS and
grism spectroscopy from the 3D-HST survey, we model their stellar populations
with either exponentially declining (tau) star formation histories (SFHs) or
physically-motivated SFHs drawn from semi-analytic models (SAMs). SAMs predict
longer formation timescales and older ages ~2 Gyr, which are nearly twice as
old as the estimates of the tau models. While both models yield good SED fits,
SAM SFHs better match the observed slope and zero point of the SFR-M main
sequence. Some low-mass compact SFGs (log(M/Msun)=10-10.6) have younger ages
but lower sSFRs than that of more massive galaxies, suggesting that the
low-mass galaxies reach the red sequence faster. If the progenitors of compact
SFGs are extended SFGs, state-of-the-art SAMs show that mergers and disk
instabilities are both able to shrink galaxies, but disk instabilities are more
frequent (60% versus 40%) and form more concentrated galaxies. We confirm this
result via high-resolution hydrodynamic simulations.Comment: Submitted to Ap
Six-dimensional supersymmetric gauge theories, quantum cohomology of
  instanton moduli spaces and gl(N) Quantum Intermediate Long Wave
  Hydrodynamics

We show that the exact partition function of U(N) six-dimensional gauge
theory with eight supercharges on C^2 x S^2 provides the quantization of the
integrable system of hydrodynamic type known as gl(N) periodic Intermediate
Long Wave (ILW). We characterize this system as the hydrodynamic limit of
elliptic Calogero-Moser integrable system. We compute the Bethe equations from
the effective gauged linear sigma model on S^2 with target space the ADHM
instanton moduli space, whose mirror computes the Yang-Yang function of gl(N)
ILW. The quantum Hamiltonians are given by the local chiral ring observables of
the six-dimensional gauge theory. As particular cases, these provide the gl(N)
Benjamin-Ono and Korteweg-de Vries quantum Hamiltonians. In the four
dimensional limit, we identify the local chiral ring observables with the
conserved charges of Heisenberg plus W_N algebrae, thus providing a gauge
theoretical proof of AGT correspondence.Comment: 1 + 34 pages; v2: typos correcte
(0,2) SCFTs from the Leigh-Strassler Fixed Point

We show that there is a family of two-dimensional $(0,2)$ SCFTs associated
with twisted compactifications of the four-dimensional $\mathcal{N}=1$
Leigh-Strassler fixed point on a closed hyperbolic Riemann surface. We
calculate the central charges for this class of theories using anomalies and
$c$-extremization. In a suitable truncation of the five-dimensional maximal
supergravity, we construct supersymmetric $AdS_3$ solutions that are
holographic duals of those two-dimensional $(0,2)$ SCFTs. We also exhibit
supersymmetric domain wall solutions that are holographically dual to the RG
flows between the four-dimensional and two-dimensional theories.Comment: 40 pages, 6 figure
Characterisation of Ces\`aro and $L$-Asymptotic Limits of Matrices

The main goal of this paper is to characterise all the possible Ces\`aro and
$L$-asymptotic limits of powerbounded, complex matrices. The investigation of
the $L$-asymptotic limit of a powerbounded operator goes back to Sz.-Nagy and
it shows how the orbit of a vector behaves with respect to the powers. It turns
out that the two types of asymptotic limits coincide for every powerbounded
matrix and a special case is connected to the description of the products
$SS^*$ where $S$ runs through those invertible matrices which have unit
columnvectors. We also show that for any powerbounded operator acting on an
arbitrary complex Hilbert space the norm of the $L$-asymptotic limit is greater
than or equal to 1, unless it is zero; moreover, the same is true for the
Ces\`aro asymptotic limit of a not necessarily powerbounded operator, if it
exists.Comment: 15 pages, Linear and Multilinear Algebra(2014
WASP-104b and WASP-106b: two transiting hot Jupiters in 1.75-day and
  9.3-day orbits

We report the discovery from the WASP survey of two exoplanetary systems,
each consisting of a Jupiter-sized planet transiting an 11th magnitude (V)
main-sequence star. WASP-104b orbits its star in 1.75 d, whereas WASP-106b has
the fourth-longest orbital period of any planet discovered by means of transits
observed from the ground, orbiting every 9.29 d. Each planet is more massive
than Jupiter (WASP-104b has a mass of $1.27 \pm 0.05 \mathrm{M_{Jup}}$, while
WASP-106b has a mass of $1.93 \pm 0.08 \mathrm{M_{Jup}}$). Both planets are
just slightly larger than Jupiter, with radii of $1.14 \pm 0.04$ and $1.09 \pm
0.04 \mathrm{R_{Jup}}$ for WASP-104 and WASP-106 respectively. No significant
orbital eccentricity is detected in either system, and while this is not
surprising in the case of the short-period WASP-104b, it is interesting in the
case of WASP-106b, because many otherwise similar planets are known to have
eccentric orbits.Comment: 8 pages, 6 figures, 5 tables. Accepted for publication in A&
ElecSus: A program to calculate the electric susceptibility of an atomic
  ensemble

We present a computer program and underlying model to calculate the electric
susceptibility of a gas, which is essential to predict its absorptive and
dispersive properties. Our program focusses on alkali-metal vapours where we
use a matrix representation of the atomic Hamiltonian in the completely
uncoupled basis in order to calculate transition frequencies and strengths. The
program calculates various spectra for a weak-probe laser beam in an atomic
medium with an applied axial magnetic field. This allows many optical devices
to be designed, such as Faraday rotators/filters, optical isolators and
circular polarisation filters. Fitting routines are also provided with the
program which allows the user to perform optical metrology by fitting to
experimental data.Comment: 16 pages, 9 Figure
X-ray and UV observations of V751 Cyg in an optical high state

Aims: The VY Scl system (anti-dwarf nova) V751 Cyg is examined following a
claim of a super-soft spectrum in the optical low state. Methods: A
serendipitous XMM-Newton X-ray observation and, 21 months later, Swift X-ray
and UV observations, have provided the best such data on this source so far.
These optical high-state datasets are used to study the flux and spectral
variability of V751 Cyg. Results: Both the XMM-Newton and Swift data show
evidence for modulation of the X-rays for the first time at the known 3.467 hr
orbital period of V751 Cyg. In two Swift observations, taken ten days apart,
the mean X-ray flux remained unchanged, while the UV source brightened by half
a magnitude. The X-ray spectrum was not super-soft during the optical high
state, but rather due to multi-temperature optically thin emission, with
significant (10^{21-22} cm^-2) absorption, which was higher in the observation
by Swift than that of XMM-Newton. The X-ray flux is harder at orbital minimum,
suggesting that the modulation is related to absorption, perhaps linked to the
azimuthally asymmetric wind absorption seen previously in H-alpha.Comment: 6 pages, 9 figures, accepted for publication in A&
Multi-graviton theories : yes-go and no-go results

We report yes-go and no-go results on consistent cross-couplings for a
collection of gravitons. Motivated by the search of theories where multiplets
of massless spin-two fields cross-interact, we look for all the consistent
deformations of a positive sum of Pauli-Fierz actions. We also investigate the
problem of deforming a (positive and negative) sum of linearized Weyl gravity
actions and show explicitly that there exists multi-Weyl-graviton theories. As
the single-graviton Weyl theory, these theories do not have an energy bounded
from below.Comment: 6 pages, Latex. Talk given at the RTN meeting ``The Quantum Structure
  of Spacetime and the Geometric Nature of Fundamental Interactions'', Corfu,
  13-20 September 200
An eight-dimensional approach to G_2 manifolds

We develop a systematic approach to G_2 holonomy manifolds with an
SU(2)xSU(2) isometry using maximal eight-dimensional gauged supergravity to
describe D6-branes wrapped on deformed three-spheres. A quite general metric
ansatz that generalizes the celebrated Bryant-Salamon metric involves nine
functions. We show that only six of them are the independent ones and derive
the general first order system of differential equations that they obey. As a
byproduct of our analysis, we generalize the notion of the twist that relates
the spin and gauge connections in a way that involves non-trivially the scalar
fields.Comment: 16 pages, Latex. v2: Minor and cosmetic changes, and references
  added. Journal versio