Hard-photon production with b jets at hadron colliders

Abstract

We present total and differential cross sections for the production of a hard photon with up to two b jets at both the Tevatron with center-of-mass energy 1.96 TeV and the Large Hadron Collider with center-of-mass energy 8 TeV, including Next-to-Leading Order (NLO) QCD corrections and full b-quark mass effects. We study the theoretical uncertainty due to the residual renormalization- and factorization-scale dependence and explain its origin on the basis of the different subprocesses contributing to the NLO cross section. We specifically address the case of the production of a hard photon with at least one b jet and compare the NLO QCD predictions in both the Four- and Five-Flavor-Number Schemes to the experimental measurements obtained by CDF and D0.

33 pages, 50 postscript figures

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Cited by in corpus (8)

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• Photon-tagged and B-meson-tagged b-jet production at the LHC
• A fragmentation-based study of heavy quark production
• Vector Bosons and Jets in Proton Collisions
• Measurement of the differential $\gamma +2b$-jet cross section and the ratio $\sigma$($\gamma +2b$-jets)/$\sigma$($\gamma +b$-jet) in $p\bar{p}$ collisions at $\sqrt{s}$=1.96 TeV
• Electroweak Gauge-Boson Production in Association with b Jets at Hadron Colliders
• NLO QCD corrections to Single Top and W associated production at the LHC with forward detector acceptances
• Review of physics results from the Tevatron: QCD physics