Search for New Physics in Final States with One Muon and Missing Transverse Energy with CMS Data

This analysis deals with the search for new physics in the µ + ν final state. Regard- ing this, a four-fermion contact interaction is considered as a potential standard-model extension as well as the decay of a new heavy, charged gauge boson W ′ in a simplified reference model. The dataset comprises proton-proton collisions recorded at a center-of- mass energy of √s = 8 TeV with the CMS experiment at the LHC in 2012 corresponds to an integrated luminosity of 10.3 fb−1. Since no deviations from the standard model pre- diction have been found, exclusion limits are set on the considered new-physics models. Exclusion limits on the W ′ mass of MW ′ < 2.9 TeV under the assumption of W -like cou- plings are obtained, as well as on the contact interaction energy scale of Λ < 10.0 TeV, each for a 95 % confidence interval. Furthermore, an improvement of the exclusion limit to MW ′ < 3.0 TeV is achieved by combining results with the decay channel W ′ → eν. Results of the analysis with a dataset of 3.7 fb−1 have been published in [1].