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arXiv · 0801.2374

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

Fernando Febres Cordero·Laura Reina·Doreen Wackeroth
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Abstract

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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Fernando Febres Cordero, Laura Reina, Doreen Wackeroth. 2008-01-15. NLO QCD corrections to W-b-bbar and Z-b-bbar production. https://arxiv.org/abs/0801.2374

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