arXiv:hep-ph/9702349·v2·High Energy Physics — Phenomenology
Single-quark spin asymmetries in e+ e- ---> t tbar and anomalous gluon couplings
Saurabh D. Rindani (Theory Group, PRL, Ahmedabad, India)🇪🇸 · Michael M. Tung (ITP, SUNY, Stony Brook, USA)🇪🇸
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.
Comments: 12 pages (LaTeX2e), 6 figures (PostScript), final version, to appear in Phys. Lett. B