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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
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy 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. Published by Elsevier B.V.

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
Natural Sciences
Identifiers
URN: urn:nbn:se:uu:diva-184585DOI: 10.1016/j.nuclphysb.2012.07.009ISI: 000308049700001OAI: oai:DiVA.org:uu-184585DiVA: diva2:566815
Note

ATLAS Collaboration, for complete list of authors see http://dx.doi.org/10.1016/j.nuclphysb.2012.07.009

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

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Brenner, RichardBuszello, Claus P.Ekelof, TordEllert, MattiasFerrari, ArnaudIsaksson, CharliePelikan, Daniel

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