NLO QCD corrections to Z b anti-b production with massive bottom quarks at the Fermilab Tevatron

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dc.creatorCordero, F. Febres
dc.creatorReina, L.
dc.creatorWackeroth, D.
dc.date2008-06-04
dc.date2008-10-30
dc.date.accessioned2026-07-07T11:51:25Z
dc.date.available2026-07-07T11:51:25Z
dc.descriptionWe calculate the Next-to-Leading Order (NLO) QCD corrections to Z b anti-b production in hadronic collisions including full bottom-quark mass effects. We present results for the total cross section and the invariant mass distribution of the bottom-quark jet pair at the Fermilab Tevatron p anti-p collider. We perform a detailed comparison with a calculation that considers massless bottom quarks, as implemented in the Monte Carlo program MCFM. We find that neglecting bottom-quark mass effects overestimates the total NLO QCD cross section for Z b anti-b production at the Tevatron by about 7%, independent of the choice of the renormalization and factorization scales. Moreover, bottom-quark mass effects can impact the shape of the bottom-quark pair invariant mass distribution, in particular in the low invariant mass region.
dc.description26 pages, 16 postscript figures, typos corrected, two comments added and references updated, version to appear in Physical Review D
dc.identifierhttps://arxiv.org/abs/0806.0808
dc.identifierhttp://arxiv.org/abs/0806.0808
dc.identifierPhys.Rev.D78:074014,2008
dc.identifierdoi:10.1103/PhysRevD.78.074014
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/203893
dc.subjectHigh Energy Physics - Phenomenology
dc.titleNLO QCD corrections to Z b anti-b production with massive bottom quarks at the Fermilab Tevatron
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