Speaker
Steven Randolph Schramm
(Universite de Geneve (CH))
Description
Results of searches for both prompt and non-prompt leptonic decays of new
dark sector particles in proton-proton collisions with the ATLAS detector
at a center-of-mass energy of 13 TeV are presented. Searches that
encompass a wide range of new particle masses, lifetimes and degrees of
collimation of leptonic decay products are discussed. The results are
interpreted in the context of models containing new gauge bosons (dark
photons or dark Z bosons) that give rise to lepton-jets or to more general
displaced leptonic signatures, as well as models with a high-mass,
right-handed neutrino that could be a viable dark matter candidate.
