Search for dark matter in proton-proton collision events with a muon and missing transverse energy in the CMS detector with $\sqrt{s}$ = 13 TeV

In this thesis the search of dark matter is described by analyzing the transverse mass spectrum of proton-proton collisions events with one muon and missing transverse energy in the final state. Dark matter produced in the annihilation of two quarks is investigated. For this, three simplifiied models based on a mediator particle are used: axial vector, scalar and pseudoscalar. It is assumed that dark matter particles are weakly interacting massive particles. The search of this kind of matter is one of the main purposes of Large Hadron Collider. In this thesis we are using the data collected by the Compact Muon Solenoid during the Run II in 2015 with a center of mass energy of 13 TeV and integrated luminosity of 2.3 fb-1. As no significant deviation from the Standard Model predictions is seen, exclusion limits at 95% CL for the model parameters can be set. The sensitivity of this study is presented in terms of excluded mediator and dark matter masses for the models.