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Measurement of the photon plus b-jet production differential cross section in p(p)over-bar) collisions at root s=1.96 TeV
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2012 (English)In: Physics Letters B, ISSN 0370-2693, E-ISSN 1873-2445, Vol. 714, no 1, 32-39 p.Article in journal (Refereed) Published
Abstract [en]

We present measurements of the differential cross section d sigma/dp(T)(gamma) for the inclusive production of a photon in association with a b-quark jet for photons with rapidities vertical bar y(gamma)vertical bar < 1.0 and 30 < p(T)(gamma) < 300 GeV, as well as for photons with 1.5 < vertical bar y(gamma)vertical bar < 2.5 and 30 < p(T)(gamma) < 200 GeV, where p(T)(gamma) is the photon transverse momentum. The b-quark jets are required to have p(T) > 15 GeV and rapidity vertical bar Y-jet vertical bar < 1.5. The results are based on data corresponding to an integrated luminosity of 8.7 fb(-1), recorded with the DO detector at the Fermilab Tevatron p<(p)over bar>) Collider at root s = 1.96 TeV. The measured cross sections are compared with next-to-leading order perturbative QCD calculations using different sets of parton distribution functions as well as to predictions based on the k(T)-factorization QCD approach, and those from the SHERPA and PYTHIA Monte Carlo event generators.

Place, publisher, year, edition, pages
2012. Vol. 714, no 1, 32-39 p.
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Physical Sciences
Identifiers
URN: urn:nbn:se:uu:diva-181132DOI: 10.1016/j.physletb.2012.06.056ISI: 000306877400006OAI: oai:DiVA.org:uu-181132DiVA: diva2:552944
Available from: 2012-09-17 Created: 2012-09-17 Last updated: 2017-12-07Bibliographically approved

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Buszello, Claus P.

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