Medida de la sección eficaz de producción de pares top-antitop en colisiones protón-protón a 13 TeV con el detector CMS

The top quark pair production is one of the dominant processes at the Large Hadron Collider (LHC). Properties of the top quark are measured with high precision and also is one of the main backgrounds for the search of new physics at the LHC. In this project we present the measurement of the production cross section of a pair of top quarks using the final di-lepton decay channel. It has been used data collected by the Compact Muon Solenoid (CMS) detector, at a center-of-mass energy of 13 TeV and an integrated luminosity of 35.8 pb−1. Máster en Física de Partículas y del Cosmos