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arXiv · hep-ph/0406247

New-Physics Search in gamma gamma --> t tbar

Zenro Hioki
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Abstract

We performed an analysis on possible anomalous top-quark couplings generated by SU(2) x U(1) gauge-invariant dimension-6 effective operators, applying the optimal-observable procedure to the final lepton/b-quark momentum distribution in gamma gamma --> t tbar --> l X/b X. We studied how many such anomalous coupling constants could be determined altogether through these distributions.

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Zenro Hioki. 2004-06-23. New-Physics Search in gamma gamma --> t tbar. https://arxiv.org/abs/hep-ph/0406247

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