Single-quark spin asymmetries in e+ e- ---> t tbar and anomalous gluon couplings
arXiv:hep-ph/9702349 · doi:10.1016/S0370-2693(98)00103-8
Abstract
The effect of anomalous chromoelectric couplings of the gluon to the top quark are considered in e+ e- --> t tbar. The total cross section, as well as t and tbar polarizations are calculated to order alpha_s in the presence of the anomalous couplings. One of the two linear combinations of t and tbar polarizations is CP even, while the other is CP odd. Limits that could be obtained at a future linear collider on CP-odd combinations of anomalous couplings are determined.
12 pages (LaTeX2e), 6 figures (PostScript), final version, to appear in Phys. Lett. B
Cited by in corpus (8)
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- QCD Corrections to Spin Correlations in Top Quark Production at Lepton Colliders
- CP violation in tbW couplings at the LHC
- QCD corrections up to order alpha_s^2 to polarized quark production in e^+ e^- -annihilation
- Probe of CP Violation in e+e- -> ttbar Near Threshold
- Decay-lepton angular distributions in e+e- -> t tbar to O(alpha_s) in the soft-gluon approximation
- QCD corrections to decay-lepton polar and azimuthal angular distributions in e+e- -> t tbar in the soft-gluon approximation