The top quark forward-backward asymmetry at approximate N${}^3$LO

Abstract

I calculate the top quark forward-backward asymmetry at the Tevatron in both the laboratory frame and the $t\bar{t}$ rest frame. I show that soft-gluon corrections are the dominant contribution to the asymmetry and closely approximate exact results through next-to-next-to-leading order (NNLO). I present a calculation of the asymmetry including approximate next-to-next-to-next-to-leading-order (N${}^3$LO) soft-gluon contributions from next-to-next-to-leading-logarithm (NNLL) resummation as well as electroweak corrections. Thus approximate N${}^3$LO (aN${}^3$LO) results are obtained, which significantly enhance and improve previous NNLO results. The theoretical aN${}^3$LO result for the top quark forward-backward asymmetry at the Tevatron in the laboratory frame is ($6.8\pm 0.3$)\%, and in the $t\bar{t}$ rest frame it is ($10.0\pm 0.6$)\% which is in excellent agreement with recent Tevatron data.

9 pages, 2 figures, 1 table; published version

References in corpus (20)

• Parton distributions for the LHC
• -- HATHOR -- HAdronic Top and Heavy quarks crOss section calculatoR
• Hadronic top-quark pair production with NNLL threshold resummation
• Forward-backward asymmetry in top quark-antiquark production
• Next-to-next-to-leading soft-gluon corrections for the top quark cross section and transverse momentum distribution
• First measurement of the forward-backward charge asymmetry in top quark pair production
• Measurement of the top quark forward-backward production asymmetry and its dependence on event kinematic properties
• The electroweak contribution to the top quark forward-backward asymmetry at the Tevatron
• Resolving the Tevatron Top Quark Forward-Backward Asymmetry Puzzle: Fully Differential Next-to-Next-to-Leading-Order Calculation
• Top quark and leptonic charge asymmetries for the Tevatron and LHC
• Threshold Resummation for the Top Quark Charge Asymmetry
• Electroweak Sudakov Corrections and the Top Quark Forward-Backward Asymmetry
• Measurement of the forward-backward asymmetry in top quark-antiquark production in ppbar collisions using the lepton+jets channel
• The top-pair forward-backward asymmetry beyond NLO
• Application of the Principle of Maximum Conformality to the Top-Quark Forward-Backward Asymmetry at the Tevatron
• The top quark rapidity distribution and forward-backward asymmetry
• NNNLO soft-gluon corrections for the top-antitop pair production cross section
• NNNLO soft-gluon corrections for the top-quark $p_T$ and rapidity distributions
• Top-quark production and QCD
• Theoretical results for top quark production

Cited by in corpus (30)

• The Standard Model as an Effective Field Theory
• Asymmetries in top quark pair production at hadron colliders
• The top-quark charge asymmetry at the LHC and Tevatron through NNLO QCD and NLO EW
• Inclusive and differential measurements of the t t-bar charge asymmetry in pp collisions at sqrt(s) = 8 TeV
• Study of weak corrections to Drell-Yan, top-quark pair and dijet Production at high energies with MCFM
• Soft-gluon corrections for $tW$ production at N${}^3$LO
• Soft anomalous dimensions for single-top production at three loops
• Top-Quark Physics: Status and Prospects
• Simultaneous measurement of forward-backward asymmetry and top polarization in dilepton final states from $t\bar{t}$ production at the Tevatron
• Combined Forward-Backward Asymmetry Measurements in Top-Antitop Quark Production at the Tevatron
• Top physics at the LHC
• Higher-order corrections for $tZ$ production via anomalous couplings
• Resummation for $2\to n$ processes in single-particle-inclusive kinematics
• Soft-gluon corrections in top-quark production
• Top-quark double-differential distributions at approximate N${}^3$LO
• Looking for bSM physics using top-quark polarization and decay-lepton kinematic asymmetries
• Bottom-Quark Forward-Backward and Charge Asymmetries at Hadron Colliders
• Associated production of a top quark with a photon via anomalous couplings
• Predictions for the Top-Quark Forward-Backward Asymmetry at High Invariant Pair Mass Using the Principle of Maximum Conformality
• Soft-gluon corrections for the associated production of a single top quark and a Higgs boson
• Measurement of the charge asymmetry in top-quark pair production in association with a photon with the ATLAS experiment
• Measurement of the forward-backward asymmetry of top-quark and antiquark pairs using the full CDF Run II data set
• $t{Z}^{\prime }$ production at hadron colliders
• High-order threshold corrections for top-pair and single-top production
• Observing the Top Energy Asymmetry at the LHC
• Top-pair and $tW$ production at approximate N${}^3$LO
• Total and differential cross sections for Higgs and top-quark production
• Theoretical predictions for top-quark production processes
• Measurement of the top-quark production cross-section and charge asymmetry at LHCb
• Top quark physics at the Tevatron