A new evaluation of the t->cH decay width in the standard model

Details A new evaluation of the t->cH decay width in the standard model A new evaluation of the t->cH decay width in the standard model

1998-05-29

arxiv.org/abs/hep-ph/9805498v2

Phys.Lett.B435:401-406,1998

Physics

High Energy Physics

High Energy Physics - Phenomenology

12 pages, 5 figures, uses axodraw.sty. One reference added, to appear on Physics Letter B

Scientific paper

10.1016/S0370-2693(98)00822-3

We present a new calculation of the t->cH decay rate in the standard model.
We find that the corresponding branching fraction is B(t->cH) \sim 10^{-13} -
10^{-14} for M_Z < m_H < 2 M_W, that is about 6 orders of magnitude less than
previously evaluated, and usually quoted in the literature.

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