Charged Higgs bosons at the LHC under the Type II 2HDM

Abstract

The production process of a charged Higgs boson H+, and its almost instantaneous decay to a tau τ+ and tau neutrino ντ , have been studied for a head-on collision between protons at the LHC, using its characteristic Parton Distribution Function (PDF) to identify the most likely quarks that interact in the process. Following that, the analysis of the conservation laws for the resultant decay has enabled to deduct the angular distributions for the momenta of the final leptons (polar angle θ and azimuthal angle ϕ), while the application of Lorentz transformations has made it possible to examine these magnitudes for both the laboratory and the charged Higgs rest frame. Eventually, this has lead to the study of a provided Les Houches Events file, to verify the predictions stated before, and later generate an own process with the use of the program MadGraph, obtaining the cross sections and branching ratios of different processes in the end.