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Measurement of the b-hadron production cross section using decays to D*(+)mu X- final states in pp collisions at root s=7 TeV with the ATLAS detector

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  • ATLAS Collaboration
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<mark>Journal publication date</mark>21/11/2012
<mark>Journal</mark>Nuclear Physics B
Issue number3
Volume864
Number of pages41
Pages (from-to)341–381
<mark>State</mark>Published
<mark>Original language</mark>English

Abstract

The b-hadron production cross section is measured with the ATLAS detector in pp collisions at View the sqrt(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−XD⁎+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 View the MathML source32.7±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.

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This article is published Open Access at sciencedirect.com. It is distributed under the terms of the Creative Commons Attribution License 3.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are credited.