SEZIONE DI FIRENZE In models where dark matter relic abundance is set by standard thermal
freeze-out mechanism, perturbative unitarity bounds require its mass to be below
few hundreds TeV. We propose a new thermal freeze-out mechanism, resulting in
dark matter mass up to roughly a million TeV, without violating unitarity bounds
and without modifying the standard cosmological history. (Noam Levi)
DATA: 19-12-2019
Istituto Nazionale di Fisica
Nucleare - Piazza dei Caprettari, 70 -
00186 Roma
tel. +39 066840031 - fax +39 0668307924 - email: presidenza@presid.infn.it