Transverse Polarization of Top Quarks Produced in e+e- Annihilation at O(alpha_s)

Abstract

We present the results of an O(alpha_s) calculation of the transverse polarization of top quarks produced in e+e- annihilation. In a first step we determine the transverse polarization of the top with regard to the hadron plane spanned by the (q,bar q,g) system. We then rotate the transverse components of the polarization to the lepton plane spanned by the (q,e+,e-) system. After azimuthal averaging we determine the three remaining inclusive transversely polarized structure functions. Together with the one-loop and Born term contributions they determine the sin(theta) and sin(2*theta) beam-quark polar angle dependence of the transverse polarization. We present analytic and numerical results for the polarized structure functions and the polar angle dependence of the transverse polarization. We briefly comment on the transverse polarization of bottom quarks produced in e+e- annihilation.

Final version; 15 pages, LaTeX, 3 PostScript figures

References in corpus (1)

• Precision determination of ${\alpha }_s$ and $m_b$ from QCD sum rules for $b\overline{b}$.

Cited by in corpus (24)

• The Phenomenology of Extra Neutral Gauge Bosons
• QCD-corrected spin analysing power of jets in decays of polarized top quarks
• Complete angular analysis of polarized top decay at O(alpha_s)
• Polarized top decay into polarized W: t(up)->W(up) + b at O(alpha_s)
• The spin density matrix of top quark pairs produced in electron-positron annihilation including QCD radiative corrections
• Angular analysis of polarized top quark decay into B-mesons in two different helicity systems
• Azimuthal correlation between the $({\vec{p}}_l,{\vec{p}}_{X_b})$ and $({\vec{p}}_l,{\vec{P}}_t)$ planes in the semileptonic rest frame decay of a polarized top quark: An $O({\alpha }_s)$ effect
• QCD corrections up to order alpha_s^2 to polarized quark production in e^+ e^- -annihilation
• 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
• SUSY QCD corrections to the polarization and spin correlations of top quarks produced in e+e- collisions
• Polarization and spin correlations of top quarks at a future e+ e- linear collider
• Indirect search for light charged Higgs bosons through the dominant semileptonic decays of top quark $t\to b(\to B/D+X)+H^{+}(\to {\tau }^{+}{\nu }_{\tau })$
• Fully analytical O(α_s) results for on-shell and off-shell polarized W-boson decays into massive quark pairs
• $T$-odd correlations in polarized top quark decays in the sequential decay $t(\uparrow )\to X_b+W^{+}(\to {\ell }^{+}+{\nu }_{\ell })$ and in the quasi three-body decay $t(\uparrow )\to X_b+{\ell }^{+}+{\nu }_{\ell }$
• Analytical results for O(α_s) radiative corrections to e+ e- -> tbar t(pol.) up to a given gluon energy cut
• QCD analysis of light charged Higgs production through polarized top quark decay in two various frames
• Analytical $O({\alpha }_s)$ corrections to the beam frame double-spin density matrix elements of $e^{+}{e}^{-}\to t\bar{t}$
• Azimuthal polarization of polarized top quark in noncommutative standard model
• Polar Angle Dependence of the Alignment Polarization of Quarks Produced in e^+e^- Annihilation
• QCD corrections to single top quark production in electron photon interactions
• Decay-lepton angular distributions in e+e- -> t tbar to O(alpha_s) in the soft-gluon approximation
• Energy and angular distributions of the bottom quark in the electron-positron annihilation $e^{+}{e}^{-}\to b{W}^{+}\bar{t}$
• First order electroweak radiative corrections to the decay of the polarised $W$ boson