SUSY QCD one-loop effects in (un)polarized top-pair production at hadron colliders

Abstract

We study the effects of O(alpha_s) supersymmetric QCD (SQCD) corrections on the total production rate and kinematic distributions of polarized and unpolarized top-pair production in pp and p anti-p collisions. At the Fermilab Tevatron p anti-p collider, top-quark pairs are mainly produced via quark-antiquark annihilation, q anti-q -> t anti-t, while at the CERN LHC pp collider gluon-gluon scattering, g g -> t anti-t, dominates. We compute the complete set of O(alpha_s) SQCD corrections to both production channels and study their dependence on the parameters of the Minimal Supersymmetric Standard Model. In particular, we discuss the prospects for observing strong, loop-induced SUSY effects in top-pair production at the Tevatron Run II and the LHC.

56 pages, 29 figures, RevTeX4

References in corpus (42)

• Big-Bang nucleosynthesis (Particle Data Group mini-review)
• The Cosmological Parameters 2006
• Automatized One-Loop Calculations in 4 and D dimensions
• Generating Feynman Diagrams and Amplitudes with FeynArts 3
• Observation of Top Quark Production in Pbar-P Collisions
• Global QCD Analysis of Parton Structure of the Nucleon: CTEQ5 Parton Distributions
• Observation of the Top Quark
• NLL resummation of the heavy-quark hadroproduction cross-section
• The Implementation of the Minimal Supersymmetric Standard Model in FeynArts and FormCalc
• The t-tbar cross-section at 1.8 and 1.96 TeV: a study of the systematics due to parton densities and scale dependence
• Top quark pair production and decay at hadron colliders
• Next-to-next-to-leading order soft-gluon corrections in top quark hadroproduction
• Electroweak Precision Observables in the Minimal Supersymmetric Standard Model
• Top quark spin correlations at hadron colliders: Predictions at next-to-leading order QCD
• Weak interaction corrections to hadronic top quark pair production
• Spin Correlation in Top-Quark Production at Hadron Colliders
• Sudakov Resummation and Finite Order Expansions of Heavy Quark Hadroproduction Cross Sections
• Electroweak corrections to top-quark pair production in quark--antiquark annihilation
• Search for Gluinos and Scalar Quarks in $p\bar{p}$ Collisions at $\sqrt{s}=1.8$ TeV using the Missing Energy plus Multijets Signature
• Mixed QCD and weak corrections to top quark pair production at hadron colliders
• New Features in FormCalc 4
• ATLAS sensitivity to top quark and W boson polarization in $t\bar{t}$ events
• Weak corrections to gluon-induced top-antitop hadro-production
• Top Quark Distributions in Hadronic Collisions
• Next-to-leading order QCD corrections to top quark spin correlations at hadron colliders: the reactions $gg\to t\bar{t}(g)$ and $gq(\bar{q})\to t\bar{t}q(\bar{q})$
• Weak corrections to four-parton processes
• Search for squarks and gluinos in events with jets and missing transverse energy in ppbar collisions at sqrt(s)=1.96 TeV
• Parity Violating Asymmetries in Top Pair Production at Hadron Colliders
• Next-to-leading order QCD corrections to top quark spin correlations at hadron colliders: the reactions $q\bar{q}\to t\bar{t}(g)$
• Yukawa correction to top-quark production at the Tevatron
• Top-squark mixing effects in the supersymmetric electroweak corrections to top quark production at the Tevatron
• Joint resummation for heavy quark production
• One Loop Supersymmetric QCD Radiative Corrections to the top quark production in $p\bar{p}$ collisions
• Top Pair Production at Hadron Colliders in non-minimal Standard Models
• Supersymmetric QCD correction to top-quark production at the Tevatron
• Theoretical status of the top quark cross section
• Enhanced Supersymmetric Corrections to Top-Quark Production at the Tevatron
• Search for the pair production of scalar top quarks in the acoplanar charm jet topology in p pbar collisions at sqrt(s)=1.96 TeV
• Parity Violation in Top Quark Pair Production at the Fermilab Tevatron Collider
• Strong supersymmetric quantum effects on top quark production at the Fermilab Tevatron
• Search for Gluinos and Squarks Using Like-Sign Dileptons in p-pbar Collisions at sqrt(s)=1.8 TeV
• Special Supersymmetric features of large invariant mass unpolarized and polarized top-antitop production at LHC

Cited by in corpus (21)

• Closing the stop gap
• NLO QED contributions to top-pair production at hadron collider
• Sgluon Pair Production to Next-to-Leading Order
• Automated Squark and Gluino Production to Next-to-Leading Order
• New physics effects on top quark spin correlation and polarization at the LHC: a comparative study in different models
• Weak interaction corrections to hadronic top quark pair production: contributions from quark-gluon and $b\bar{b}$ induced reactions
• Automized Squark-Neutralino Production to Next-to-Leading Order
• Squark anti-squark pair production at the LHC: the electroweak contribution
• Top quark physics at the LHC
• SUSY QCD Corrections to Higgs-b Production : Is the Δ_b Approximation Accurate?
• SUSY QCD Corrections to Associated Higgs-bottom Quark Production
• Automated third generation squark production to next-to-leading order
• Anomalous gtt couplings in the Littlest Higgs Model with T-parity
• Looking for leptogluons
• SUSY QCD Corrections to Higgs Pair Production from Bottom Quark Fusion
• MSSM Effects in Top-antitop Production at the LHC
• Slepton pair production in association with a jet: NLO-QCD corrections and parton-shower effects
• Top quark theory review for the Tevatron, LHC, and ILC
• Parity Violation in QCD Process
• QCD correction to gluino decay to $t\bar{t}{\tilde{\chi }}_1^0$ in the MSSM
• MSSM corrections to the top-antitop quark forward-backward asymmetry at the Tevatron