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arXiv · hep-ph/0403174

Optimal-Observable Analysis of Possible New Physics Using the b-quark in gamma gamma -> tt -> bX

Bohdan Grzadkowski·Zenro Hioki·Kazumasa Ohkuma·Jose Wudka
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Abstract

We study possible anomalous top-quark couplings generated by SU(2) x U(1) gauge invariant dimension-6 effective operators, using the final b-quark momentum distribution in gamma gamma -> tt -> bX. Taking into account non-standard tt gamma, tbW and gamma gamma H couplings, we perform an optimal-observable analysis in order to estimate the precision for the determination of all relevant non-standard couplings.

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Bohdan Grzadkowski, Zenro Hioki, Kazumasa Ohkuma, Jose Wudka. 2004-06-04. Optimal-Observable Analysis of Possible New Physics Using the b-quark in gamma gamma -> tt -> bX. https://doi.org/10.1016/j.physletb.2004.04.075

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