Measurement of the b-hadron production cross section using decays to D⁎+μ−X final states in pp collisions at √s=7 TeV with the ATLAS detector

ATLAS Collaboration

doi:10.1016/j.nuclphysb.2012.07.009

Scientific article

English

Measurement of the b-hadron production cross section using decays to D^⁎+μ⁻X final states in pp collisions at √s=7 TeV with the ATLAS detector

ContributorsATLAS Collaboration

Published inNuclear physics. B, vol. 864, no. 3, p. 341-381

Publication date2012

Abstract

The b -hadron production cross section is measured with the ATLAS detector in pp collisions at √s=7 TeV, using 3.3 pb−13.3 pb−1 of integrated luminosity, collected during the 2010 LHC run. The b-hadrons are selected by partially reconstructing D⁎+μ−X final states. Differential cross sections are measured as functions of the transverse momentum and pseudorapidity. The measured production cross section for a b-hadron with pT>9 GeVpT>9 GeV and |η|<2.5|η|<2.5 is 32.7±0.8(stat.)−6.8+4.5(syst.)μb, higher than the next-to-leading-order QCD predictions but consistent within the experimental and theoretical uncertainties

Keywords

QCD
Flavour physics
B physics
Heavy quark production

Affiliation entities

Faculté des sciences / Section de physique / Département de physique nucléaire et corpusculaire

Citation (ISO format)

ATLAS Collaboration. Measurement of the b-hadron production cross section using decays to D^⁎+μ⁻X final states in pp collisions at √s=7 TeV with the ATLAS detector. In: Nuclear physics. B, 2012, vol. 864, n° 3, p. 341–381. doi: 10.1016/j.nuclphysb.2012.07.009

Article (Published version)

Identifiers

PID : unige:40047
DOI : 10.1016/j.nuclphysb.2012.07.009

Commercial URLhttp://www.sciencedirect.com/science/article/pii/S0550321312003926#

Journal ISSN0550-3213

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Measurement of the b-hadron production cross section using decays to D⁎+μ−X final states in pp collisions at √s=7 TeV with the ATLAS detector

Technical informations

Measurement of the b-hadron production cross section using decays to D^⁎+μ⁻X final states in pp collisions at √s=7 TeV with the ATLAS detector