Hidden-sector-assisted 125 GeV Higgs boson

TL;DR

This paper proposes a mechanism where heavy hidden sector fields and their interactions with messenger fields can radiatively raise the Higgs boson mass to 125 GeV without relying on large top-stop contributions.

Contribution

It introduces a novel approach using hidden sector fields and messenger interactions to enhance the Higgs mass radiatively, bypassing the need for heavy top-stop contributions.

Findings

Hidden sector fields can significantly increase the Higgs mass.

Radiative corrections from hidden sectors can achieve 125 GeV Higgs mass.

The mechanism works with moderate Yukawa couplings and tanβ values.

Abstract

In order to significantly raise the mass of the supersymmetry Higgs boson, we consider a radiative correction to it by heavy (\sim 1 TeV) hidden sector fields, which communicate with the Higgs through relatively heavy "messengers" (300-500 GeV). The messenger fields (S, \bar{S}) are coupled to the Higgs ("y_HSH_uH_d," y_H\lesssim 0.7) and also to hidden sector fields with a Yukawa coupling of order unity. The hidden sector fields are assumed to be large representations of a hidden gauge group, and so their scalar partner masses can be heavier than other typical soft scalars in the visible sector. Even with a relatively small y_H (\sim 0.2) or tan\beta\sim 10 but without top-stop's considerable contributions, the radiative correction by such hidden sector fields can be enhanced enough to yield the 125 GeV Higgs mass.