New Physics effects on hadronic decay asymmetries of the Top quark

Details New Physics effects on hadronic decay asymmetries of the Top quark New Physics effects on hadronic decay asymmetries of the Top quark

2011-12-07

arxiv.org/abs/1112.1685v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

Scientific paper

We study some New Physics effects on the hadronic decays of the Top quark, like t-> b bbar c, and on a forward-backward-like CP even asymmetry A_t constructed in such a way that it is zero in the SM. We find that an anomalous right-handed contribution of the effective tbW vertex may induce an asymmetry A_t of the order of 20 %. A light W' boson with pure right handed couplings tdW' may induce an asymmetry A_t of the same order of magnitude.

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