Abstract
We analyze the prospects of observing the light charge parity ()-even neutral Higgs bosons () in their decays into quarks, in the neutral and charged current production processes and at the upcoming Large Hadron Electron Collider (LHeC), with . Assuming that the intermediate Higgs boson () is Standard Model (SM)-like, we study the Higgs production within the framework of next-to-minimal supersymmetric Standard Model (NMSSM). We consider the constraints from dark-matter, sparticle masses, and the Higgs boson data. The signal in our analysis can be classified as three jets, with electron (missing energy) coming from the neutral (charged) current interaction. We demand that the number of -tagged jets in the central rapidity region be greater or equal to two. The remaining jet is tagged in the forward regions. With this forward jet and two -tagged jets in the central region, we reconstructed three jets invariant masses. Applying some lower limits on these invariant masses turns out to be an essential criterion to enhance the signal–to–background rates, with slightly different sets of kinematical selections in the two different channels. We consider almost all reducible and irreducible SM background processes. We find that the non-SM like Higgs boson, , would be accessible in some of the NMSSM benchmark points, at approximately the () level in the channel up to Higgs boson masses of 75 GeV, and in the channel could be discovered with the () level up to Higgs boson masses of 88 GeV with of data in a simple cut-based (with optimization) selection. With ten times more data accumulation at the end of the LHeC run, and using optimization, one can have discovery in the electron (missing energy) channel up to 85 (more than 90) GeV.
7 More- Received 19 January 2017
DOI:https://doi.org/10.1103/PhysRevD.96.055014
© 2017 American Physical Society