NLO QCD corrections to W-b-bbar and Z-b-bbar production

Details NLO QCD corrections to W-b-bbar and Z-b-bbar production NLO QCD corrections to W-b-bbar and Z-b-bbar production

2008-01-15

arxiv.org/abs/0801.2374v1

PoS RADCOR2007:012,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

6 pages, 6 eps figures, LaTeX, to appear in the proceedings of the "8th International Symposium on Radiative Corrections (RADC

Scientific paper

We present NLO QCD results for W/Z gauge boson production with bottom quark pairs at the Tevatron including full bottom-quark mass effects. We study the impact of QCD corrections on both total cross-section and invariant mass distribution of the bottom-quark pair. Including NLO QCD corrections greatly reduces the dependence of the tree-level cross-section on the renormalization and factorization scales. We also compare our calculation to a calculation that considers massless bottom quarks and find that the bottom-quark mass effects amount to about 8-10% of the total NLO QCD cross-section and can impact the shape of the bottom-quark pair invariant mass distribution, in particular in the low invariant mass region.

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