SUSY Spectrum and the Higgs Mass in the BLMSSM

TL;DR

This paper explores how an extended supersymmetric model with local baryon and lepton symmetries can naturally produce a Higgs mass around 125 GeV, compatible with experimental bounds and featuring distinctive leptonic signals at the LHC.

Contribution

It demonstrates that the BLMSSM can achieve the observed Higgs mass with light sfermions and minimal stop mixing, while predicting unique leptonic signatures and baryon number violation.

Findings

Achieves Higgs mass around 125 GeV with light sfermions.

Predicts unique leptonic signals at the LHC.

Allows baryon number violation at low scale.

Abstract

The predictions for the mass of the light CP-even Higgs are investigated in the context of a simple extension of the Minimal Supersymmetric Standard Model where the baryon and lepton numbers are local gauge symmetries. This theory predicts the existence of light charged and neutral leptons which give extra contributions to the Higgs mass at the one-loop level. We show the possibility to satisfy the LEP2 bound and achieve a Higgs mass around 125 GeV in a supersymmetric spectrum with light sfermions and small left-right mixing in the stop sector. We make a brief discussion of the unique leptonic signals at the Large Hadron Collider. This theory predicts baryon number violation at the low scale and one could avoid the current LHC bounds on the supersymmetric mass spectrum.