Single-quark spin asymmetries in e+ e- ---> t tbar and anomalous gluon couplings

Details Single-quark spin asymmetries in e+ e- ---> t tbar and anomalous gluon couplings Single-quark spin asymmetries in e+ e- ---> t tbar and anomalous gluon couplings

1997-02-15

arxiv.org/abs/hep-ph/9702349v2

Phys.Lett.B424:125-132,1998

Physics

High Energy Physics

High Energy Physics - Phenomenology

12 pages (LaTeX2e), 6 figures (PostScript), final version, to appear in Phys. Lett. B

Scientific paper

10.1016/S0370-2693(98)00103-8

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.

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