Detection of New Heavy Charged Gauge Bosons with the Future CMS Detector

In this thesis a feasibility study of the search for a new heavy harged gauge boson ac- cording to the Reference Model by Altarelli with the CMS detector at the LHC is presented. The model assumes the existence of a heavy carbon copy of the Standard Model W with identical couplings, a suppressed coupling to W and Z bosons, and, among others, the de- cay into a charged lepton and a light neutrino. These particles, generically denoted as W ′ have been investigated in the decay channel W ′ → µν using the full detector simulation and including minimum bias events (pile-up) according to the low luminosity phase of the LHC. All Standard Model backgrounds have been considered. The discovery mass range for such new bosons is determined to be 0.14.6 TeV for an integrated luminosity of one year LHC operation (10 fb−1). The range an be expanded to 6.1 TeV with an integrated luminosity of 300 fb−1. If no signs appear 95% CL exclusion limits of 4.7 TeV and 6.2 TeV can be set respectively.