Threshold Resummation for the Top Quark Charge Asymmetry

Abstract

We study the QCD charge asymmetry in t\bar{t} production at the Tevatron. We investigate the role of higher orders in perturbation theory by considering the resummation of potentially large logarithmic corrections that arise near partonic threshold. This requires us to employ the rapidity-dependent anomalous dimension matrices that describe color mixing due to soft gluon emission in both quark- and gluon-initiated processes. The charge asymmetry appears directly in the resummed cross section at next-to-leading logarithm (NLL), and we find that the first-order expansion of the NLL resummed charge asymmetry reproduces the known fixed-order result for the asymmetry well. Beyond its lowest order, the asymmetric component of the cross section is enhanced by the same leading-logarithmic threshold corrections as the total cross section. As a result, the charge asymmetry is robust with respect to the higher-order perturbative corrections generated by threshold resummation. We observe that the asymmetry increases with pair mass and with scattering angle.

14 pages, 4 figures. One reference added, version to appear in Phys. Rev. D

References in corpus (35)

• New Generation of Parton Distributions with Uncertainties from Global QCD Analysis
• Soft-gluon resummation for Higgs boson production at hadron colliders
• The Resummation of Soft Gluon in Hadronic Collisions
• NLL resummation of the heavy-quark hadroproduction cross-section
• Theoretical status and prospects for top-quark pair production at hadron colliders
• Resummation for QCD Hard Scattering
• Updated predictions for the total production cross sections of top and of heavier quark pairs at the Tevatron and at the LHC
• Next-to-next-to-leading order soft-gluon corrections in top quark hadroproduction
• Charge asymmetry of heavy quarks at hadron colliders
• NLO QCD corrections to t tbar + jet production at hadron colliders
• First measurement of the forward-backward charge asymmetry in top quark pair production
• Charge asymmetry in hadroproduction of heavy quarks
• The q_T spectrum of the Higgs boson at the LHC in QCD perturbation theory
• Prompt neutrinos from atmospheric c-cbar and b-bbar production and the gluon at very small x
• Top Quarks, Axigluons and Charge Asymmetries at Hadron Colliders
• Threshold Resummation for Dijet Cross Sections
• Top Quark Production Cross Section
• CP Violation in Top Physics
• The Top Cross Section in Hadronic Collisions
• Sudakov resummation of multiparton QCD cross sections
• Standard Model Top Quark Asymmetry at the Fermilab Tevatron
• Sudakov Resummation and Finite Order Expansions of Heavy Quark Hadroproduction Cross Sections
• The Perturbative Resummed Series for Top Quark Production in Hadron Reactions
• Perturbative generation of a strange-quark asymmetry in the nucleon
• Heavy Quark Correlations in Photon-Hadron Collisions
• Sudakov Resummation Effects in Prompt-Photon Hadroproduction
• Threshold Resummation for the Inclusive-Hadron Cross-Section in pp Collisions
• Threshold Resummation and Rapidity Dependence
• Soft-gluon resummation and NNLO corrections for direct photon production
• Top quark physics at the LHC
• Threshold resummation for the prompt-photon cross section revisited
• Top Quarks and Flavor Physics
• Soft-gluon resummation for pseudoscalar Higgs boson production at hadron colliders
• Prospects of Open Charm Production at GSI-FAIR and J-PARC
• New Physics at the LHC: A Les Houches Report. Physics at Tev Colliders 2007 -- New Physics Working Group

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