Flavor physics in theories with extended symmetries

Abstract

We discuss a low scale left-right symmetric model based on SU (3)C × SU (2)L × SU (2)R × U (1)B−L × Z2 with a simple simplified Higgs sector contain of only one SU (2)R doublet and one bidoublet. In this model, the small values of light neutrino masses are generated through an inverse-seesaw mechanism. We emphasize that in this scenario, the tree-level flavor changing

neutral current can be strongly suppressed by taken V R

L CKM

, consistent with the current

experimental constraints at LHC. in our scenario We show that the lightest CP -even Higgs boson is like the standard model Higgs boson h, and the next lightest Higgs boson, h𝘫, which is generated from the neutral components of the bidoublet. We show that the mass of the this Higgs h𝘫 can be of an order a few hundred GeVs. then we try probe h𝘫 by analyze the detection of h𝘫 at the Large Hadron Collider (LHC) for a center-of-mass energy √s = 14 TeV and integrated luminosity Lint = 300 fb−1 via di-Higgs process: h𝘫 → hh → b¯bγγ and also in the ZZ process: h𝘫 → ZZ → 4l (l = e, µ) at an integrated luminosity Lint = 3000 fb−1. We consider three benchmark points for do this analysis with mh𝘫 = 250 GeV, 400 GeV, and 600 GeV. We also show that promising signals with good statistical significances can be obtained and more better in di-Higgs channel, with 2γ + 2b-jets final states.