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
2012 (English)In: Nuclear Physics B, ISSN 0550-3213, Vol. 864, no 3, 341-381 p.Article in journal (Refereed) Published
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.
QCD, Flavour physics, B physics, Heavy quark production
IdentifiersURN: urn:nbn:se:kth:diva-104677DOI: 10.1016/j.nuclphysb.2012.07.009ISI: 000308049700001ScopusID: 2-s2.0-84864759043OAI: oai:DiVA.org:kth-104677DiVA: diva2:566696
QC 20121109. Author count: 28532012-11-092012-11-09Bibliographically approved