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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
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.
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2012 (English)In: Nuclear Physics B, ISSN 0550-3213, E-ISSN 1873-1562, Vol. 864, no 3, 341-381 p.Article in journal (Refereed) Published
Abstract [en]

The b-hadron production cross section is measured with the ATLAS detector in pp collisions at root s = 7 TeV, using 3.3 pb(-1) of integrated luminosity, collected during the 2010 LHC run. The b-hadrons are selected by partially reconstructing D*(+)mu 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 p(T) > 9 GeV and vertical bar eta vertical bar < 2.5 is 32.7 +/- 0.8(stat.)(-6.8)(+4.5)(syst.) mu b, higher than the next-to-leading-order QCD predictions but consistent within the experimental and theoretical uncertainties.

Place, publisher, year, edition, pages
2012. Vol. 864, no 3, 341-381 p.
Keyword [en]
QCD, Flavour physics, B physics, Heavy quark production
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-104677DOI: 10.1016/j.nuclphysb.2012.07.009ISI: 000308049700001Scopus ID: 2-s2.0-84864759043OAI: oai:DiVA.org:kth-104677DiVA: diva2:566696
Note

QC 20121109. Author count: 2853

Available from: 2012-11-09 Created: 2012-11-09 Last updated: 2017-12-07Bibliographically approved

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Strandberg, Jonas

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  • apa
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