Studying Possible Anomalous Top-Quark Couplings at Photon Colliders
High Energy Physics - Phenomenology
2007-05-23 v2 High Energy Physics - Experiment
Abstract
Search for new-physics through possible anomalous t tbar gamma, tbW and gamma gamma H couplings which are generated by SU(2) X U(1) gauge-invariant dimension-6 effective operators is discussed, using energy and angular distributions of final charged-lepton/ b-quark in gamma gamma -> t tbar -> l X / bX for various beam polarizations. Optimal beam polarizations that minimize uncertainty in determination of those non-standard couplings are found performing an optimal-observable analysis.
Cite
@article{arxiv.hep-ph/0511038,
title = {Studying Possible Anomalous Top-Quark Couplings at Photon Colliders},
author = {Bohdan Grzadkowski and Zenro Hioki and Kazumasa Ohkuma and Jose Wudka},
journal= {arXiv preprint arXiv:hep-ph/0511038},
year = {2007}
}
Comments
12 pages, no figures; v2: Typos corrected