Showing 2009Show all

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cond-mat.quant-gas2009★ 84 cited

Light cone dynamics and reverse Kibble-Zurek mechanism in two-dimensional superfluids following a quantum quench

L. Mathey, A. Polkovnikov

We study the dynamics of the relative phase of a bilayer of two-dimensional superfluids after the two superfluids have been decoupled. We find that on short time scales the relativ…

hep-ex2009★ 84 cited

Determination of the strong coupling constant from the inclusive jet cross section in ppbar collisions at sqrt(s)=1.96 TeV

D0 Collaboration, V. M. Abazov

We determine the strong coupling constant alphas and its energy dependence from the pT dependence of the inclusive jet cross section in ppbar collisions at sqrt(s)=1.96 TeV. The st…

stat.ME2009★ 86 cited

Inference for Extremal Conditional Quantile Models, with an Application to Market and Birthweight Risks

Victor Chernozhukov, Ivan Fernandez-Val

Quantile regression is an increasingly important empirical tool in economics and other sciences for analyzing the impact of a set of regressors on the conditional distribution of a…

hep-ph2009★ 5 cited

Playing with Neutrino Masses

Sheldon L. Glashow

Most of what is known about neutrino masses and mixings results from studies of oscillation phenomena. We focus on those neutrino properties that are not amenable to such studies:…

math.ST2009

Robust estimation of the scale and of the autocovariance function of Gaussian short and long-range dependent processes

Céline Lévy-Leduc, Hélène Boistard, Eric Moulines +2

A desirable property of an autocovariance estimator is to be robust to the presence of additive outliers. It is well-known that the sample autocovariance, being based on moments, d…

hep-lat2009★ 545 cited

Solving Lattice QCD systems of equations using mixed precision solvers on GPUs

M. A. Clark, R. Babich, K. Barros +2

Modern graphics hardware is designed for highly parallel numerical tasks and promises significant cost and performance benefits for many scientific applications. One such applicati…

physics.flu-dyn2009★ 149 cited

Snakes and ladders: localized solutions of plane Couette flow

Tobias M. Schneider, John F. Gibson, John Burke

We demonstrate the existence of a large number of exact solutions of plane Couette flow, which share the topology of known periodic solutions but are localized in space. Solutions…

astro-ph.GA2009★ 1 cited

I-GALFA: The Inner-Galaxy ALFA Low-Latitude H I Survey

Bon-Chul Koo, Steven J. Gibson, Ji-hyun Kang +6

The I-GALFA survey is mapping all the HI in the inner Galactic disk visible to the Arecibo 305m telescope within 10 degrees of the Galactic plane (longitudes of 32 to 77 deg at b=0…

hep-lat2009★ 3 cited

The role of multigrid algorithms for LQCD

Ronald Babich, James Brannick, Richard C. Brower +4

We report on the first successful QCD multigrid algorithm which demonstrates constant convergence rates independent of quark mass and lattice volume for the Wilson Dirac operator.…

cond-mat.mes-hall2009★ 1.2k cited

Observation of Van Hove singularities in twisted graphene layers

Guohong Li, A. Luican, J. M. B. Lopes dos Santos +4

Electronic instabilities at the crossing of the Fermi energy with a Van Hove singularity in the density of states often lead to new phases of matter such as superconductivity, magn…

astro-ph.CO2009★ 1k cited

The Spectral Energy Distribution of Fermi bright blazars

A. A. Abdo, M. Ackermann, M. Ajello +107

(Abridged) We have conducted a detailed investigation of the broad-band spectral properties of the γ-ray selected blazars of the Fermi LAT Bright AGN Sample (LBAS). By combining ou…

hep-ex2009★ 12 cited

Search for the associated production of a b quark and a neutral supersymmetric Higgs boson which decays to tau pairs

D0 Collaboration, V. M. Abazov

We report results from a search for production of a neutral Higgs boson in association with a quark. We search for Higgs decays to pairs with one subsequently decaying…

hep-ex2009★ 20 cited

Search for the Standard Model Higgs Boson in the ZH->vvbb Channel in 5.2 fb-1 of p-pbar Collisions at sqrt(s)=1.96 TeV

D0 Collaboration

A search is performed for the standard model Higgs boson in 5.2 fb-1 of p-pbar collisions at sqrt(s)=1.96 TeV, collected with the D0 detector at the Fermilab Tevatron Collider. The…

hep-ex2009★ 187 cited

Double parton interactions in photon+3 jet events in ppbar collisions sqrt{s}=1.96 TeV

D0 Collaboration

We have used a sample of photon+3 jets events collected by the D0 experiment with an integrated luminosity of about 1 fb^-1 to determine the fraction of events with double parton s…

math.ST2009

Asymptotic properties of U-processes under long-range dependence

Céline Lévy-Leduc, Hélène Boistard, Eric Moulines +2

Let be a stationary mean-zero Gaussian process with covariances $ρ(k)=\PE(X_{1}X_{k+1})$ satisfying: and where is in and $…

physics.ins-det2009★ 95 cited

Readiness of the ATLAS Liquid Argon Calorimeter for LHC Collisions

The ATLAS Collaboration

The ATLAS liquid argon calorimeter has been operating continuously since August 2006. At this time, only part of the calorimeter was readout, but since the beginning of 2008, all c…

astro-ph.CO2009★ 18 cited

Unexpected High Brightness Temperature 140 PC from the Core in the Jet of 3C 120

Mar Roca-Sogorb, Jose L. Gomez, Ivan Agudo +2

We present 1.7, 5, 15, 22 and 43 GHz polarimetric multi-epoch VLBA observations of the radio galaxy 3C 120. The higher frequency observations reveal a new component, not visible be…

hep-ex2009★ 16 cited

Search for single top quarks in the tau+jets channel using 4.8 fb of collision data

The D0 Collaboration

We present the first direct search for single top quark production using tau leptons. The search is based on 4.8 fb of integrated luminosity collected in collisio…

hep-ex2009★ 19 cited

Search for a resonance decaying into WZ boson pairs in collisions

The D0 Collaboration, V. M. Abazov

We present the first search for an electrically charged resonance decaying to a WZ boson pair using 4.1 fb of integrated luminosity collected with the D0 detector…

astro-ph.IM2009★ 32 cited

Calibration of liquid argon and neon detectors with

W. H. Lippincott, S. B. Cahn, D. Gastler +4

We report results from tests of Kr, as a calibration source in liquid argon and liquid neon. Kr atoms are produced in the decay of $^{83…

q-fin.PR2009

Finitely additive probabilities and the Fundamental Theorem of Asset Pricing

Constantinos Kardaras

This work aims at a deeper understanding of the mathematical implications of the economically-sound condition of absence of arbitrages of the first kind in a financial market. In t…

astro-ph.IM2009★ 5 cited

A Vigorous Explorer Program

Martin Elvis, Matthew Beasley, Roger Brissenden +47

Explorers have made breakthroughs in many fields of astrophysics. The science from both these missions contributed to three Nobel Prizes - Giacconi (2002), Mather, and Smoot (2006)…

hep-lat2009★ 4 cited

Excited-Nucleon Spectroscopy with 2+1 Fermion Flavors

Saul Cohen, John M. Bulava, Justin Foley +10

We present progress made by the Hadron Spectrum Collaboration (HSC) in determining the tower of excited nucleon states using 2+1-flavor anisotropic clover lattices. The HSC has bee…

astro-ph.HE2009★ 92 cited

The X-ray Energy Dependence of the Relation between Optical and X-ray Emission in Quasars

M. Young, M. Elvis, G. Risaliti

We develop a new approach to the well-studied anti-correlation between the optical-to-X-ray spectral index, alpha_ox, and the monochromatic optical luminosity, l_opt. By cross-corr…