2001/11/09 by Luis Bento, Luı́s Bento, Bento, Luis +2 · 2 citations
Physics and Astronomy · #Astrophysics (astro-ph) #Cosmology and Gravitation Theories #Dark Matter and Cosmic Phenomena #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Particle physics theoretical and experimental studies #astro-ph #hep-ph
paper · pdf · doi:10.48550/arxiv.hep-ph/0111116
11 pages, 2 figures; Talk given (LB) at the XI International School: Particles and Cosmology, Baksan Valley, Kabardino-Balkaria, Russia, 18-24 April, 2001
openalex publication_date 2001/11/09 · arxiv created 2001/11/20 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We propose a baryo- and leptogenesis mechanism in which the B-L asymmetry is produced in the conversion of ordinary leptons into particles of some depleted hidden sector. In particular, we consider the lepton number violating reactions, l Higgs -> l' Higgs', l' Higgs', mediated by the heavy Majorana neutrinos N of the seesaw mechanism, where l and Higgs are ordinary lepton and Higgs doublets and l', Higgs' the ``sterile'' leptons and Higgs. This mechanism can operate even if the reheat temperature is smaller than the N Majorana masses, in which case the usual leptogenesis mechanism through N decays is ineffective. In particular, the reheat tempearture can be as low as 109 GeV or less.