Light Higgs boson scenario in the SUSY seesaw model

TL;DR

This paper explores the compatibility of a light Higgs boson scenario with the SUSY seesaw model, analyzing neutrino mass assumptions, lepton flavor violation, and implications for dark matter and rare decays.

Contribution

It demonstrates the consistency of a light Higgs scenario within the SUSY seesaw framework under specific neutrino mass assumptions and investigates related phenomenological bounds.

Findings

Bounds on right-handed neutrino mass from lepton flavor violation

Impact of right-handed neutrinos on b to s gamma decay

Effects on dark matter relic abundance

Abstract

It is demonstrated that the light Higgs boson scenario, which the lightest Higgs mass is less than the LEP bound, mh > 114.4 GeV, is consistent with the SUSY seesaw model. With the assumptions of the universal right-handed neutrino mass and the hierarchical mass spectrum of the ordinary neutrinos, the bounds for the right-handed neutrino mass is investigated in terms of lepton flavor violating charged lepton decays. We also discuss the effect of the modification of renormalization group equations by the right-handed neutrinos on the b to s gamma process and the relic abundance of dark matter in the light Higgs boson scenario.