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

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

2004-03-16

arxiv.org/abs/hep-ph/0403174v3

Phys.Lett. B593 (2004) 189-197

Physics

High Energy Physics

High Energy Physics - Phenomenology

13 pages, LaTeX2e. Final version (one paper added to the ref.list and one person added to the ACKNOWLEDGMENTS) which is to app

Scientific paper

10.1016/j.physletb.2004.04.075

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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