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arXiv · 0711.1311

Top quark rare decays in a two Higgs doublet model for the top

Itzhak Baum
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Abstract

The two Higgs doublet model for the top (T2HDM) is a 2HDM in which the top quark receives a special status, which endows it with a naturally large mass, and also gives rise to unique FC charged and neutral scalar interactions. We calculate the BR of the t->ch and h->tc rare decays in the T2HDM, at 1-loop and tree level. We find that the FC scalar interactions play a significant role in these decays. We find that the BR of these decays at 1-loop level in the T2HDM can be significantly enhanced over the 2HDM-I,II, reaching up to ~10^-4, and that the BR(t->ch) in the T2HDM can be detected at the LHC.

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Itzhak Baum. 2007-11-08. Top quark rare decays in a two Higgs doublet model for the top. https://arxiv.org/abs/0711.1311

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