Gauge Bosons W And Charged Higgs Boson At The LHC Produced Jointly

The standard model (S M) is the basic theory to describe the strong, weak, electric interactions. It has been conformity to most experiment results so far. The S M still exists a number of problems, such as unnaturalness, neutrino mass, etc. Massless neutrinos are predicted by the SM, but in fact experiments demonstrate that it has mass. This requires that there should be a new physics beyond the S M. In order to solve the above problems, many new physics have been proposed. These models usually introduce new particles or new mechanisms to achieve the purpose of the neutrino to get the suitable mass.Charged Higgs bosons are predicted in some new physics models beyond the SM:the MSSM, the HTM model, the LRTH model and so on. Production mechanism of charged Higgs in the HTM and the LRTH is similar to the MSS M. This paper describes the coupling and the decay of charged Higgs in the MSSM, the HTM model, the LRTH model, and reviews the production mechanism of charged Higgs in the MSSM. Production of charged Higgs boson associated with a W gauge boson at the LHC is mainly induced by the tree-level bb annihilation and the one-loop gluon gluon fusion.First, we will consider production of a charged Higgs boson (H+or H-) associated with a W gauge boson at the LHC. One can see from this figure that, in most of the parameter space of the HTM, the total cross section σ=σq+σb for the H±W(?) production contributed by the partonic processes qqâ†'H±W(?) and bbâ†'H±W(?) is smaller than0.35fb. This is mainly because, in the context of the HTM, the production cross section σ is suppressed by the factor v2Δ/v02. Even with the high luminosity regime of the LHC around100fb-1, there are only35H±W(?) events to be produced. To compare our results obtained in the context of the HTM with those for the LRTH model, we further consider this production process within the LRTH model. For150GeV≤M≤300GeV,200GeV≤MH≤A00GeV,500GeV≤f≤1200GeV and (?)s=UTeV, the value of the cross section σ is in the range of0.46fb～44fb, which is always larger than within the HTM case. However, its value is larger or smaller than that in SUSY, depending on the values of the relevant free parameters. However, in most of the parameter space of the LRTH model, the value of SS is smaller than1.