Laser-assisted charged Higgs boson decay in Two Higgs Doublet Model -- type II

TL;DR

This paper explores how a circularly polarized laser field influences the decay processes of charged Higgs bosons in the two-Higgs-doublet model, providing exact formulas and analyzing the impact of superstrong fields.

Contribution

It introduces an exact analytic approach to calculate charged Higgs decay widths in a laser field within the two-Higgs-doublet model, considering multiple photon interactions.

Findings

Decay widths are significantly affected by superstrong laser fields.

Branching ratios are dramatically modified under intense laser conditions.

Decay dependencies on laser parameters are systematically analyzed.

Abstract

In this paper, we investigate the charged Higgs boson decay in the context of the type-II two-Higgs-doublet model in the presence of a circularly polarized electromagnetic field of laser radiation. The calculations are performed by adopting the Furry picture approach of non-perturbative interactions with the external electromagnetic field. Using the method of exact solutions for charged particles states in the presence of a circularly polarized electromagnetic wave field and evaluating the $S$-matrix elements, an exact analytic expression is derived for the decay width of leptonic, hadronic and bosonic decay modes. The branching ratios of different decay modes with multiple photon emission and absorption from the laser beam are analyzed and found to be dramatically modified in the region of superstrong fields. The dependencies of the decay width on the laser field strength and frequency are also examined. The results obtained may be interesting for future experimental and theoretical investigations.