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544 papers · 1 filter

astro-ph.HE2011★ 73 cited

Fermi Detection of γ-ray emission from the M2 Soft X-ray Flare on 2010 June 12

Fermi GBM Collaboration, Fermi LAT Collaboration, B. R. Dennis +2

The GOES M2-class solar flare, SOL2010-06-12T00:57, was modest in many respects yet exhibited remarkable acceleration of energetic particles. The flare produced an ~50 s impulsive…

hep-ex2011★ 98 cited

Measurement of the charge asymmetry in top-quark pair production in proton-proton collisions at sqrt(s) = 7 TeV

CMS Collaboration

The difference in angular distributions between top quarks and antiquarks, commonly referred to as the charge asymmetry, is measured in pp collisions at the LHC with the CMS experi…

hep-ph2011★ 3 cited

A Rationale for Long-lived Quarks and Leptons at the LHC: Low Energy Flavour Theory

O. J. P. Eboli, C. A. Savoy, R. Zukanovich Funchal

In the framework of gauged flavour symmetries, new fermions in parity symmetric representations of the standard model are generically needed for the compensation of mixed anomalies…

cond-mat.mtrl-sci2011★ 59 cited

Dislocation core field. II. Screw dislocation in iron

Emmanuel Clouet, Lisa Ventelon, F. Willaime

The dislocation core field, which comes in addition to the Volterra elastic field, is studied for the <111> screw dislocation in alpha-iron. This core field, evidenced and characte…

astro-ph.CO2011★ 45 cited

Environmental effects in the interaction and merging of galaxies in zCOSMOS

P. Kampczyk, S. J. Lilly, L. de Ravel +56

(Abridged) We analyze the environments and galactic properties (morphologies and star-formation histories) of a sample of 153 close kinematic pairs in the redshift range 0.2 < z <…

astro-ph.SR2011★ 1 cited

Solar flares as harbinger of new physics

K. Zioutas, M. Tsagri, Y. Semertzidis +4

This work provides additional evidence on the involvement of exotic particles like axions and/or other WISPs, following recent measurements during the quietest Sun and flaring Sun.…

astro-ph.SR2011★ 43 cited

The onset of high-mass star formation in the direct vicinity of the galactic mini-starburst W43

H. Beuther, J. Tackenberg, H. Linz +10

Context: The earliest stages of high-mass star formation are still poorly characterized. It is also unknown whether the initial conditions vary with environment. Aims: We want to i…

astro-ph.HE2011★ 71 cited

A Shallow Water Analogue of the Standing Accretion Shock Instability: Experimental Demonstration and Two-Dimensional Model

Thierry Foglizzo, Frédéric Masset, Jérôme Guilet +1

Despite the sphericity of the collapsing stellar core, the birth conditions of neutron stars can be highly non spherical due to a hydrodynamical instability of the shocked accretio…

cond-mat.stat-mech2011★ 9 cited

Counting statistics: a Feynman-Kac perspective

Andrea Zoia, Eric Dumonteil, Alain Mazzolo

By building upon a Feynman-Kac formalism, we assess the distribution of the number of hits in a given region for a broad class of discrete-time random walks with scattering and abs…

astro-ph.CO2011

A Multi-wavelength MOCASSIN Model of the Magellanic-type Galaxy NGC 4449

O. Ł. Karczewski, M. J. Barlow, M. J. Page +1

We use the photoionisation and dust radiative transfer code MOCASSIN to create a model of the dwarf irregular galaxy NGC 4449. The best-matching model reproduces the global optical…

astro-ph.HE2011★ 159 cited

The faint "heartbeats" of IGR J17091-3624: an exceptional black-hole candidate

D. Altamirano, T. Belloni, M. Linares +9

We report on the first 180 days of RXTE observations of the outburst of the black hole candidate IGR J17091-3624. This source exhibits a broad variety of complex light curve patter…

hep-ph2011★ 1 cited

Detecting the Higgs boson(s) in LambdaSUSY

Enrico Bertuzzo, Marco Farina

We reconsider the Higgs bosons discovery potential in the LambdaSUSY framework, in which the masses of the scalar particles are increased already at tree level via a largish supers…

cond-mat.str-el2011★ 20 cited

Pressure induced magnetic phase separation in LaCaMnO manganite

M. Baldini, L. Capogna, M. Capone +4

The pressure dependence of the Curie temperature T in LaCaMnO was determined by neutron diffraction up to 8 GPa, and compared with the metallizatio…

astro-ph.SR2011

Analysis of Hydrogen Cyanide Hyperfine Spectral Components towards Star Forming Cores

Robert M. Loughnane, Matt P. Redman, Eric R. Keto +2

Although hydrogen cyanide has become quite a common molecular tracing species for a variety of astrophysical sources, it, however, exhibits dramatic non-LTE behaviour in its hyperf…

astro-ph.HE2011★ 60 cited

On the linear growth mechanism driving the stationary accretion shock instability

Jerome Guilet, Thierry Foglizzo

During stellar core collapse, which eventually leads to a supernovae explosion, the stalled shock is unstable due to the standing accretion shock instability (SASI). This instabili…

astro-ph.SR2011★ 21 cited

Effects of turbulent pumping on stellar activity cycles

Olivier Do Cao, Allan Sacha Brun

Stellar magnetic activity of solar like stars is thought to be due to an internal dynamo. While the Sun has been the subject of intense research for refining dynamo models, observa…

astro-ph.SR2011★ 20 cited

Magnetic confinement of the solar tachocline: The oblique dipole

Strugarek Antoine, Brun Allan Sacha, Zahn Jean-Paul

3D MHD global solar simulations coupling the turbulent convective zone and the radiative zone have been carried out. Essential features of the Sun such as differential rotation, me…

cond-mat.stat-mech2011★ 85 cited

Quantum Fluctuation Relations for the Lindblad Master Equation

Raphael Chetrite, Kirone Mallick

An open quantum system interacting with its environment can be modeled under suitable assumptions as a Markov process, described by a Lindblad master equation. In this work, we der…

astro-ph.CO2011★ 272 cited

Herschel Far-Infrared and Sub-millimeter Photometry for the KINGFISH Sample of Nearby Galaxies

D. A. Dale, G. Aniano, C. W. Engelbracht +39

New far-infrared and sub-millimeter photometry from the Herschel Space Observatory is presented for 61 nearby galaxies from the Key Insights on Nearby Galaxies: A Far-Infrared Surv…

astro-ph.CO2011★ 136 cited

The GALEX Arecibo SDSS Survey V: The Relation between the HI Content of Galaxies and Metal Enrichment at their Outskirts

Sean M. Moran, Timothy M. Heckman, Guinevere Kauffmann +14

We have obtained long-slit spectra of 174 star-forming galaxies with stellar masses greater than 10^10 M_\odot from the GALEX Arecibo SDSS (GASS) survey. These galaxies have both H…

astro-ph.CO2011★ 16 cited

Tomography and Weak lensing Statistics

Dipak Munshi, Peter Coles, Martin Kilbinger

Extending previous studies, we derive generic predictions for lower order cumulants and their correlators for individual tomographic bins as well as between two different bins. We…

hep-ex2011★ 1.2k cited

Indication for the disappearance of reactor electron antineutrinos in the Double Chooz experiment

Y. Abe, C. Aberle, T. Akiri +182

The Double Chooz Experiment presents an indication of reactor electron antineutrino disappearance consistent with neutrino oscillations. A ratio of 0.944 0.016 (stat) 0…

hep-ph2011★ 3 cited

Gluino, wino and Higgsino-like particles without supersymmetry

Tirtha Sankar Ray, Hiroshi de Sandes, Carlos Savoy

Metastable charged particles produced at the LHC can decay in the quiescent period between beam crossing in the detector leading to spectacular signals. In this paper we consider a…

cond-mat.soft2011★ 16 cited

Crowding effect on helix-coil transition: beyond entropic stabilization

A. Koutsioubas, D. Lairez, S. Combet +3

We report circular dichroism measurements on the helix-coil transition of poly(L-glutamic acid) in solution with polyethylene glycol (PEG) as a crowding agent. Using small angle ne…