On Higgs Decays, Baryon Number Violation, and SUSY at the LHC

TL;DR

This paper explores how baryon number violation in a supersymmetric model with broken local baryon and lepton numbers affects Higgs properties and LHC signals, predicting suppressed Higgs to diphoton decay and light stops.

Contribution

It introduces a simple extension of the MSSM with spontaneous baryon and lepton number breaking at TeV scale, analyzing its impact on Higgs decays and LHC bounds.

Findings

Higgs to diphoton decay is suppressed due to new light leptons.

Stops can be very light while satisfying experimental bounds.

Baryon number violation modifies supersymmetric signatures at the LHC.

Abstract

Baryon number violating interactions could modify the signatures of supersymmetric models at the Large Hadron Collider. In this article we investigate the predictions for the Higgs mass and the Higgs decays in a simple extension of the minimal supersymmetric standard model where the local baryon and lepton numbers are spontaneously broken at the TeV scale. This theory predicts baryon number violation at the low scale which can change the current LHC bounds on the supersymmetric spectrum. Using the ATLAS and CMS bounds on the Higgs mass we show the constraints on the sfermion masses, and show the subsequent predictions for the radiative Higgs decays. We found that the Higgs decay into two photons is suppressed due to the existence of new light leptons. In this theory the stops can be very light in agreement with all experimental bounds and we make a brief discussion of the possible signals at the LHC.