Ponente
Dr.
Thomas REIS
(Univ. Libre de Bruxelles, Belgium)
Descripción
Searches for new massive resonances that decay to dielectrons, dimuons or electron-muon pairs are presented. Resonances in the dielectron and dimuon decay channels arise in many well established theories beyond the standard model, like the sequential standard model or grand unified theories. The search in the electron-muon channel opens the field for theories where the lepton number is not conserved. Such theories include lepton flavour violating Z' models, R-parity violating SUSY or quantum black hole models. The searches use the full dataset collected by the CMS experiment in 2012 from pp collisions at a center-of-mass energy of 8 TeV, and corresponding to about 20 /fb. In absence of a significant deviation from the standard model predictions, 95% confidence level limits are calculated on cross sections or cross section ratios. For several models lower limits on the resonance mass are derived and a sequential standard model Z'_SSM and a superstring-inspired Z'_psi lighter than 2960 GeV and 2600 GeV respectively can be excluded at 95% confidence level.
Autor primario
Arnd Meyer
(RWTH Aachen University)
