QCD Corrections to Spin Correlations in Top Quark Production at Lepton Colliders

Abstract

Spin correlations, using a generic spin basis, are investigated to leading order in QCD for top quark production at lepton colliders. Even though, these radiative corrections induce an anomalous gamma/Z magnetic moment for the top quarks and allow for single, real gluon emission, their effects on the top quark spin orientation are very small. The final results are that the top (or anti-top) quarks are produced in an essentially unique spin configuration in polarized lepton collisions even after including the O(alpha_{s}) QCD corrections.

32 pages, REVTeX, 13 Postscript figures, psfig.sty and here.sty are required. Several references added, Tables 3, 4 and 5 are changed

References in corpus (5)

• Maximizing Spin Correlations in Top Quark Pair Production at the Tevatron
• O(α_s^2) Corrections to Top Quark Production at $e^{+}{e}^{-}$ Colliders
• O(alpha_s) Spin-Spin Correlations for Top and Bottom Quark Production in e+ e- Annihilation
• Single-quark spin asymmetries in e+ e- ---> t tbar and anomalous gluon couplings
• On the rigidity of back-to-back top quark pairs in e^+e^- annihilation

Cited by in corpus (22)

• Spin Correlation Effects 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
• Probing top-Z dipole moments at the LHC and ILC
• Electroweak prodution of top-quark pairs in e+e- annihilation at NNLO in QCD: the vector contributions
• Next-to-leading order QCD corrections to top quark spin correlations at hadron colliders: the reactions $q\bar{q}\to t\bar{t}(g)$
• Large Extra Dimension Effects on the Spin Configuration of the Top Quark Pair at e^+ e^- Colliders
• Spin configuration of top quark pair production with large extra dimensions at photon-photon colliders
• Top-quark spin correlation at Linear Colliders with anomalous couplings
• Applying the POWHEG method to top pair production and decays at the ILC
• QCD corrections up to order alpha_s^2 to polarized quark production in e^+ e^- -annihilation
• Probing Z' gauge boson with the spin configuration of top quark pair production at future $e^{-}{e}^{+}$ linear colliders
• A survey of top quark polarization at a polarized linear e^+ e^- collider
• Non-universal gauge boson $Z^{\prime }$ and the spin correlation of top quark pair production at $e^{-}{e}^{+}$ colliders
• O(α_s) QCD Corrections to Spin Correlations in $e^{-}{e}^{+}\to t\bar{t}$ process at the NLC
• Inferring the covariant $\Theta$-exact noncommutative coupling in the top quark pair production at linear colliders
• $O({\alpha }_s)$ corrections to the polar angle dependence of the longitudinal spin-spin correlation asymmetry in $e^{+}{e}^{-}\to q\bar{q}$
• Analytical results for O(α_s) radiative corrections to e+ e- -> tbar t(pol.) up to a given gluon energy cut
• QCD Loop Corrections to Top Production and Decay at e^+ e^- Colliders
• Analytical $O({\alpha }_s)$ corrections to the beam frame double-spin density matrix elements of $e^{+}{e}^{-}\to t\bar{t}$
• Generalized top-spin analysis and new physics in $e^{+}{e}^{-}$ collisions with beam polarization
• Decay-lepton angular distributions in e+e- -> t tbar to O(alpha_s) in the soft-gluon approximation
• Remark on CP-violating Polarization Asymmetry of tt-bar via Anomalous Couplings to gamma and Z