The $H\rightarrow b\bar{s}$ decay and its implication for the vector-like singlet fermion model

Author:

Jin Zhang, Hong-Ying Jin

Keyword:

High Energy Physics - Phenomenology, High Energy Physics - Phenomenology (hep-ph)

journal:

date:

2023-09-19 16:00:00

Abstract

The decay width $H\rightarrow b\bar{s}$ is firstly evaluated at leading order perturbation theory in the standard model. The result suggests that it is difficult to observe this mode because of the small width compared with other decays of the Higgs boson. Then based on the vector-like singlet model, assuming that the top partner only mixes with the third generation quark, we consider the contribution from coupling of top quark to its vector-like singlet partner. Further results show that the width of $H\rightarrow b\bar{s}$ may rise to an extent to which the LHC experiments can accesses.

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