Higgs bosons production and decay at future e+ e− linear colliders as a probe of the B–L model

Abstract

We study the phenomenology of the light and heavy Higgs boson production and decay in the context of a U (1)B-L extension of the standard model with an additional Z' boson at future e+ e- linear colliders with center-of-mass energies of s = 500–3000 GeV and integrated luminosities of L= 500 - 2000 fb^-1. The study includes the processes e+ e- --> (Z, Z') --> Zh and e+ e- --> (Z, Z') --> ZH, considering both the resonant and non-resonant effects. We find that the total number of expected Zh and ZH events can reach 909, 124 and 97, 487, respectively, which is a very optimistic scenario and thus it would be possible to perform precision measurements for both Higgs bosons h and H, as well as for the Z' boson in future high-energy and high-luminosity e+e- colliders experiments. Our study complements other studies on the B–L model and on the Higgs-strahlung processes e+e- --> (Z, Z') --> Zh and e+ e- -->(Z, Z') --> ZH.