Showing 2011Show all

326 papers · 1 filter

physics.flu-dyn2011★ 97 cited

Droplet size distribution in homogeneous isotropic turbulence

Prasad Perlekar, Luca Biferale, Mauro Sbragaglia +2

We study the physics of droplet breakup in a statistically stationary homogeneous and isotropic turbulent flow by means of high resolution numerical investigations based on the mul…

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…

astro-ph.CO2011★ 7 cited

The Intracluster Plasma: a Universal Pressure Profile?

A. Lapi, A. Cavaliere, R. Fusco-Femiano

The pressure profiles of the Intracluster Plasma in galaxy clusters show a wide variance when observed in X rays at low redshifts z<0.2. We find the profiles to follow two main pat…

hep-ex2011★ 42 cited

Measurement of mixing and CP violation parameters in two-body charm decays

LHCb Collaboration, R. Aaij, C. Abellan Beteta +585

A study of mixing and indirect CP violation in D0 mesons through the determination of the parameters y_CP and A_Γ is presented. The parameter y_CP is the deviation from unity of th…

astro-ph.HE2011

The flaring blazars of the first 1.5 years of the AGILE mission

L. Pacciani, A. Bulgarelli, A. W. Chen +60

We report the AGILE gamma-ray observations and the results of the multiwavelength campaigns on seven flaring blazars detected by the mission: During two multiwavelength campaigns,…

cs.GT2011★ 2 cited

Bounded-Distance Network Creation Games

Davide Bilò, Luciano Gualà, Guido Proietti

A network creation game simulates a decentralized and non-cooperative building of a communication network. Informally, there are players sitting on the network nodes, which att…

physics.ins-det2011★ 44 cited

Radioactive contamination of SrI2(Eu) crystal scintillator

P. Belli, R. Bernabei, R. Cerulli +11

A strontium iodide crystal doped by europium (SrI2(Eu)) was produced by using the Stockbarger growth technique. The crystal was subjected to a characterization that includes relati…

math.CV2011★ 3 cited

Holomorphic evolution: metamorphosis of the Loewner equation

Filippo Bracci

This is a survey on recent results on the Loewner theory in one and several complex manifolds

cond-mat.mes-hall2011★ 44 cited

Correlation effects in bistability at the nanoscale: steady state and beyond

E. Khosravi, A. -M. Uimonen, A. Stan +4

The possibility of finding multistability in the density and current of an interacting nanoscale junction coupled to semi-infinite leads is studied at various levels of approximati…

astro-ph.HE2011★ 2 cited

The observation of Gamma Ray Bursts and Terrestrial Gamma-ray Flashes with AGILE

E. Del Monte, G. Barbiellini, F. Fuschino +50

Since its early phases of operation, the AGILE mission is successfully observing Gamma Ray Bursts (GRBs) in the hard X-ray band with the SuperAGILE imager and in the MeV range with…

math.DS2011★ 35 cited

Dynamics of some piecewise smooth Fermi-Ulam Models

Jacopo De Simoi, Dmitry Dolgopyat

We find a normal form which describes the high energy dynamics of a class of piecewise smooth Fermi-Ulam ping pong models; depending on the value of a single real parameter, the dy…

math.OA2011

Maximal subalgebras of C*-algebras associated with periodic flows

Costel Peligrad, László Zsidó

We find necessary and sufficient conditions for the subalgebra of analytic elements associated with a periodic C*-dynamical system to be a maximal norm-closed subalgebra. Our condi…

math.OA2011★ 33 cited

Spectral triples for the Sierpinski Gasket

F. Cipriani, D. Guido, T. Isola +1

We construct a family of spectral triples for the Sierpinski Gasket . For suitable values of the parameters, we determine the dimensional spectrum and recover the Hausdorff meas…

hep-ex2011★ 215 cited

Measurement of inclusive jet and dijet production in pp collisions at sqrt(s) = 7 TeV using the ATLAS detector

ATLAS Collaboration

Inclusive jet and dijet cross sections have been measured in proton-proton collisions at a centre-of-mass energy of 7 TeV using the ATLAS detector at the Large Hadron Collider. The…

hep-ex2011★ 43 cited

Search for heavy vector-like quarks coupling to light quarks in proton-proton collisions at sqrt(s) = 7 TeV with the ATLAS detector

ATLAS Collaboration

This letter presents a search for singly produced vector-like quarks, Q, coupling to light quarks, q. The search is sensitive to both charged current (CC) and neutral current (NC)…

astro-ph.CO2011★ 47 cited

Planck Intermediate Results. I. Further validation of new Planck clusters with XMM-Newton

The Planck Collaboration, N. Aghanim, M. Arnaud +182

We present further results from the ongoing XMM-Newton validation follow-up of Planck cluster candidates, detailing X-ray observations of eleven candidates detected at a signal-to-…

physics.comp-ph2011

Unified framework for a side-by-side comparison of different multicomponent algorithms: lattice Boltzmann vs. phase field model

Luca Scarbolo, Dafne Molin, Prasad Perlekar +3

Lattice Boltzmann Models (LBM) and Phase Field Models (PFM) are two of the most widespread approaches for the numerical study of multicomponent fluid systems. Both methods have bee…

hep-ex2011★ 179 cited

Observation of X(3872) production in pp collisions at sqrt(s)= 7 TeV

LHCb Collaboration, R. Aaij, C. Abellan Beteta +585

Using 34.7 pb-1 of data collected with the LHCb detector, the inclusive production of the X(3872) meson in pp collisions at sqrt(s) = 7 TeV is observed for the first time. Candidat…

hep-ex2011★ 106 cited

Observation of a new chi_b state in radiative transitions to Upsilon(1S) and Upsilon(2S) at ATLAS

ATLAS Collaboration

The chi_b(nP) quarkonium states are produced in proton-proton collisions at the Large Hadron Collider (LHC) at sqrt(s) = 7 TeV and recorded by the ATLAS detector. Using a data samp…

gr-qc2011★ 59 cited

Upper limits on a stochastic gravitational-wave background using LIGO and Virgo interferometers at 600-1000 Hz

J. Abadie, B. P. Abbott, R. Abbott +782

A stochastic background of gravitational waves is expected to arise from a superposition of many incoherent sources of gravitational waves, of either cosmological or astrophysical…

hep-ex2011★ 73 cited

Measurement of b-hadron masses

LHCb Collaboration, R. Aaij, C. Abellan Beteta +583

Measurements of b-hadron masses are performed with the exclusive decay modes B+ -> J/psi K+, B0 -> J/psi K*0, B0 -> J/psi K0S, B0_s -> J/psi phi and Lambda_b -> J/psi Lambda using…

hep-ex2011★ 47 cited

Search for first generation scalar leptoquarks in pp collisions at sqrt(s) = 7 TeV with the ATLAS detector

ATLAS Collaboration

We report a search for first generation scalar leptoquarks using 1.03 fb^-1 of proton-proton collisions data produced by the Large Hadron Collider at sqrt(s)=7 TeV and recorded by…

hep-ex2011★ 42 cited

Measurement of D*+/- meson production in jets from pp collisions at sqrt(s) = 7 TeV with the ATLAS detector

ATLAS Collaboration

This paper reports a measurement of D*+/- meson production in jets from proton-proton collisions at a center-of-mass energy of sqrt(s) = 7 TeV at the CERN Large Hadron Collider. Th…

hep-ex2011★ 68 cited

Measurement of the B^0_s - \bar{B}^0_s oscillation frequency Delta m_s in B^0_s -> D_s^-(3) pi decays

LHCb Collaboration, R. Aaij, C. Abellan Beteta +579

The B^0_s-\bar{B}^0_s oscillation frequency Delta m_s is measured with 36 pb^{-1} of data collected in pp collisions at \sqrt{s} = 7 TeV by the LHCb experiment at the Large Hadron…