Showing 2012Show all

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physics.flu-dyn2012★ 255 cited

Elasto-inertial turbulence

Devranjan Samanta, Yves Dubief, Markus Holzner +4

Turbulence is ubiquitous in nature yet even for the case of ordinary Newtonian fluids like water our understanding of this phenomenon is limited. Many liquids of practical importan…

hep-ex2012★ 11 cited

First observation of the decays and

LHCb collaboration, R. Aaij, C. Abellan Beteta +621

The first observation of the decays and are reported using an integrated luminosity of 1.0 fb recorded by the…

hep-ex2012★ 36 cited

Multi-channel search for squarks and gluinos in sqrt(s)=7 TeV pp collisions with the ATLAS detector

ATLAS Collaboration

A search for supersymmetric particles in final states with zero, one, and two leptons, with and without jets identified as originating from b-quarks, in 4.7 fb-1 of sqrt(s)=7 TeV p…

astro-ph.GA2012★ 52 cited

VLA Mapping of the CO(1-0) Line in SMM J14011+0252

Chelsea E. Sharon, Andrew J. Baker, Andrew I. Harris +1

We present high-resolution CO(1-0) observations of the lensed submillimeter galaxy (SMG) SMM J14011+0252 at z=2.6. Comparison to the previously-detected CO(3-2) line gives an inten…

cond-mat.str-el2012★ 117 cited

Robustness of basal-plane antiferromagnetic order and the state in single-layer iridate spin-orbit Mott insulators

S. Boseggia, R. Springell, H. C. Walker +6

The magnetic structure and electronic groundstate of the layered perovskite Ba2IrO4 have been investigated using x-ray resonant magnetic scattering (XRMS). Our results are compared…

hep-lat2012

Octet baryon mass splittings from up-down quark mass differences

R. Horsley, J. Najjar, Y. Nakamura +4

Using an SU(3) flavour symmetry breaking expansion in the quark mass, we determine the QCD component of the neutron-proton, Sigma and Xi mass splittings of the baryon octet due to…

astro-ph.CO2012★ 247 cited

The UV Luminosity Function of star-forming galaxies via dropout selection at redshifts z ~ 7 and 8 from the 2012 Ultra Deep Field campaign

Matthew A. Schenker, Brant E. Robertson, Richard S. Ellis +13

We present a catalog of high redshift star-forming galaxies selected to lie within the redshift range z ~ 7-8 using the Ultra Deep Field 2012 (UDF12), the deepest near-infrared (ne…

astro-ph.CO2012★ 144 cited

Effect of the interactions and environment on nuclear activity

J. Sabater, P. N. Best, M. Argudo-Fernández

We present a study of the prevalence of optical and radio nuclear activity with respect to the environment and interactions in a sample of SDSS galaxies. We defined a local density…

astro-ph.CO2012★ 209 cited

Putting the Precision in Precision Cosmology: How accurate should your data covariance matrix be?

Andy Taylor, Benjamin Joachimi, Thomas Kitching

Cosmological parameter estimation requires that the likelihood function of the data is accurately known. Assuming that cosmological large-scale structure power spectra data are mul…

cond-mat.stat-mech2012★ 159 cited

Optimal diffusive search: nonequilibrium resetting versus equilibrium dynamics

Martin R. Evans, Satya N. Majumdar, Kirone Mallick

We study first-passage time problems for a diffusive particle with stochastic resetting with a finite rate . The optimal search time is compared quantitatively with that of an e…

astro-ph.CO2012★ 143 cited

Evolution of the Sizes of Galaxies over 7<z<12 Revealed by the 2012 Hubble Ultra Deep Field Campaign

Yoshiaki Ono, Masami Ouchi, Emma Curtis-Lake +14

We analyze the redshift- and luminosity-dependent sizes of dropout galaxy candidates in the redshift range z~7-12 using deep images from the UDF12 campaign, data which offers two d…

math.PR2012

A note on Euler approximations for stochastic differential equations with delay

Istvan Gyöngy, Sotirios Sabanis

An existence and uniqueness theorem for a class of stochastic delay differential equations is presented, and the convergence of Euler approximations for these equations is proved u…

astro-ph.CO2012★ 127 cited

CFHTLenS tomographic weak lensing: Quantifying accurate redshift distributions

Jonathan Benjamin, Ludovic Van Waerbeke, Catherine Heymans +18

The Canada-France-Hawaii Telescope Lensing Survey (CFHTLenS) comprises deep multi-colour (u*g'r'i'z') photometry spanning 154 square degrees, with accurate photometric redshifts an…

cond-mat.mtrl-sci2012★ 350 cited

Magnetic cryocooling with Gd3+ centers in a light and compact framework

G. Lorusso, J. W. Sharples, E. Palacios +8

The magnetocaloric effect of gadolinium formate, Gd(OOCH)3, is experimentally determined down to sub-Kelvin temperatures by direct and indirect methods. This 3D metal-organic frame…

astro-ph.CO2012★ 63 cited

Inferring the mass of sub-millimetre galaxies by exploiting their gravitational magnification of background galaxies

H. Hildebrandt, L. van Waerbeke, D. Scott +25

Dust emission at sub-millimetre wavelengths allows us to trace the early phases of star formation in the Universe. In order to understand the physical processes involved in this mo…

astro-ph.SR2012★ 142 cited

The VLT-FLAMES Tarantula Survey X: Evidence for a bimodal distribution of rotational velocities for the single early B-type stars

P. L. Dufton, N. Langer, P. R. Dunstall +12

Aims: Projected rotational velocities (\vsini) have been estimated for 334 targets in the VLT-FLAMES Tarantula survey that do not manifest significant radial velocity variations an…

astro-ph.SR2012★ 39 cited

Is γ-ray emission from novae affected by interference effects in the 18F(p,α)15O reaction?

A. M. Laird, A. Parikh, A. St. J. Murphy +14

The 18F(p,α)15O reaction rate is crucial for constraining model predictions of the γ-ray observable radioisotope 18F produced in novae. The determination of this rate is challengin…

astro-ph.CO2012★ 57 cited

H-ATLAS: The cosmic abundance of dust from the far-infrared background power spectrum

Cameron Thacker, Asantha Cooray, Joseph Smidt +22

We present a measurement of the angular power spectrum of the cosmic far-infrared background (CFIRB) anisotropies in one of the extragalactic fields of the Herschel Astrophysical T…

cond-mat.mtrl-sci2012★ 10 cited

Binding of an oxide layer to a metal: the case of Ti(10-10)/TiO2(100)

Linggang Zhu, Graeme J. Ackland

We study the chemical nature of the bonding of an oxide layer to the parent metal. In order to disentangle chemical effects from strain/misfit, Ti(100)/TiO(100) inte…

math-ph2012★ 1 cited

The paramagnetic and glass transitions in sudoku

Alex Williams, Graeme . J. Ackland

We study the statistical mechanics of a model glassy system based on a familiar and popular mathematical puzzle. Sudoku puzzles provide a very rare example of a class of frustrated…

physics.bio-ph2012★ 65 cited

Facilitated diffusion on mobile DNA: configurational traps and sequence heterogeneity

C. A. Brackley, M. E. Cates, D. Marenduzzo

We present Brownian dynamics simulations of the facilitated diffusion of a protein, modelled as a sphere with a binding site on its surface, along DNA, modelled as a semi-flexible…

astro-ph.CO2012★ 170 cited

The 2012 Hubble Ultra Deep Field (UDF12): Observational Overview

Anton M. Koekemoer, Richard S Ellis, Ross J. McLure +15

We present the 2012 Hubble Ultra Deep Field campaign (UDF12), a large 128-orbit Cycle 19 \HST\ program aimed at extending previous WFC3/IR observations of the UDF by quadrupling th…

nucl-ex2012★ 25 cited

Separated Structure Functions for Exclusive and Electroproduction at 5.5 GeV with CLAS

D. S. Carman, K. Park, B. A. Raue +1

We report measurements of the exclusive electroproduction of and final states from an unpolarized proton target using the CLAS detector at the Thomas Jefferson Nati…

cond-mat.stat-mech2012★ 18 cited

Eulerian Field-Theoretic Closure Formalisms for Fluid Turbulence

Arjun Berera, Matthew Salewski, W. D. McComb

The formalisms of Wyld [2] and Martin, Siggia, and Rose (MSR) [3] address the closure problem of a statistical treatment of homogeneous isotropic turbulence (HIT) based on techniqu…