Next-to-leading order QCD corrections to top quark spin correlations at hadron colliders: the reactions $gg\to t\bar{t}(g)$ and $gq(\bar{q})\to t\bar{t}q(\bar{q})$

Abstract

We have computed the cross section for $t\bar{t}$ production by gluon-gluon fusion at next-to-leading order (NLO) in the QCD coupling, keeping the full dependence on the $t\bar{t}$ spins. Furthermore we have determined to the same order the spin dependent cross sections for the processes $g+q(\bar{q})\to t\bar{t}+q(\bar{q})$. Together with our previous results for $q+\bar{q}\to t\bar{t}(g)$ these results allow for predictions, at NLO QCD, of the hadronic production of $t\bar{t}$ pairs in a general spin configuration. As an application we have determined the degree of correlation of the $t$ and $\bar{t}$ spins at NLO, using various spin quantisation axes.

arXiv comment10 pages, 8 figures

References in corpus (8)

• Angular Correlations in Top Quark Pair Production and Decay at Hadron Colliders
• Unstable particles in One Loop Calculations
• Top Quark Production and Decay at Next-to-leading Order in $e^{+}{e}^{-}$ Annihilation
• Polarized top decay into polarized W: t(up)->W(up) + b at O(alpha_s)
• Spin-Spin Correlations of Top Quark Pairs at Hadron Colliders
• Transverse Polarization of Top Quark Pairs at the Tevatron and the Large Hadron Collider
• Next-to-leading order QCD corrections to top quark spin correlations at hadron colliders: the reactions $q\bar{q}\to t\bar{t}(g)$
• One-loop QCD interconnection effects in pair production of top quarks

Cited by in corpus (39)

• Top-pair production at hadron colliders with next-to-next-to-leading logarithmic soft-gluon resummation
• Top quark pair production and decay at hadron colliders
• LHC Signals from Warped Extra Dimensions
• Distributions and correlations for top quark pair production and decay at the Tevatron and LHC.
• NLO QCD corrections to top quark pair production and decay at hadron colliders
• Top quark spin correlations at hadron colliders: Predictions at next-to-leading order QCD
• NLO QCD corrections to top quark pair production in association with one hard jet at hadron colliders
• QCD-corrected spin analysing power of jets in decays of polarized top quarks
• Top Jets at the LHC
• Weak interaction corrections to hadronic top quark pair production
• Spin Correlation Effects in Top Quark Pair Production at the LHC
• CP violation in top quark production at the LHC and Two-Higgs-Doublet Models
• Precision predictions for the t+t(bar) production cross section at hadron colliders
• Inclusive Heavy Flavor Hadroproduction in NLO QCD: the Exact Analytic Result
• Top quark pair production in association with a jet: QCD corrections and jet radiation in top quark decays
• Higher order corrections to spin correlations in top quark pair production at the LHC
• Lepton distribution as a probe of new physics in production and decay of the t quark and its polarization
• Weak corrections to gluon-induced top-antitop hadro-production
• The one-loop gluon amplitude for heavy-quark production at NNLO
• Top quark spin correlations at the Tevatron and the LHC
• Top Pair Production Beyond Double-Pole Approximation: pp, pp~ --> 6 Fermions and 0, 1 or 2 Additional Partons
• SUSY QCD one-loop effects in (un)polarized top-pair production at hadron colliders
• Application of the Principle of Maximum Conformality to the Top-Quark Charge Asymmetry at the LHC
• On the top-antitop invariant mass spectrum at the LHC from a Higgs boson signal perspective
• Top physics at the LHC
• GeV Majorana Neutrinos in Top-quark Decay at the LHC
• One-loop amplitudes for four-point functions with two external massive quarks and two external massless partons up to O(epsilon^2)
• Associated Production of Higgs Boson and $t\bar{t}$ at LHC
• Top Background Extrapolation for H -> WW Searches at the LHC
• Top quark spin and $Htb$ interaction in charged Higgs and top quark associated production at LHC
• MT2-reconstructed invisible momenta as spin analizers, and an application to top polarization
• Search for Anomalous Couplings in Top Decay at Hadron Colliders
• Determination of charged Higgs couplings at the LHC
• MSSM Effects in Top-antitop Production at the LHC
• New Method for Reconstructing Effective Top Quark Spin
• Top quark in theory
• Three Numerical Puzzles and the Top Quark's Chiral Weak-Moment
• Top quark pair production and decay at hadron colliders: Predictions at NLO QCD including spin correlations
• Probing the spin correlations of $t\bar{t}$ production at NLO QCD+EW