Charged Higgs boson contribution to $\bar{\nu}_e-e$ scattering from low to ultrahigh energy in Higgs triplet model

TL;DR

This paper investigates how charged Higgs bosons in the Higgs Triplet Model affect electron antineutrino scattering across a wide energy range, providing bounds and potential experimental signatures beyond the Standard Model.

Contribution

It introduces the charged Higgs contribution to $ar{ u}_e-e$ scattering in the Higgs Triplet Model and derives an upper bound on the coupling parameter from low-energy experiments.

Findings

Charged Higgs can enhance the scattering cross section by up to 5.16%.

An upper bound on the coupling parameter is established from low-energy data.

Potential to discriminate between SM and HTM in high-energy experiments.

Abstract

We study the $\bar{\nu}_e-e$ scattering from low to ultrahigh energy in the framework of Higgs Triplet Model (HTM). We add the contribution of charged Higgs boson exchange to the total cross section of the scattering. We obtain the upper bound $h_{ee}/M_{H^\pm}\lesssim2.8\times10^{-3}GeV^{-1}$ in this process from low energy experiment. We show that by using the upper bound obtained, the charged Higgs contribution can give enhancements to the total cross section with respect to the SM prediction up to 5.16% at $E\leq10^{14}$ eV and maximum at $s\approx M_{H^\pm}^2$ and would help to determine the feasibility experiments to discriminate between SM and HTM at current available facilities.