1998/10/01 by Apostolos Pilaftsis, Pilaftsis, Apostolos · 5 citations
Physics and Astronomy · #Dark Matter and Cosmic Phenomena #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Neutrino Physics Research #Particle physics theoretical and experimental studies #hep-ph
paper · pdf · doi:10.48550/arxiv.hep-ph/9810211
16 pages, uses axodraw.sty and iopconf1.sty, two encapsulated figures. To appear in the proceedings of 2nd International Conference on Dark Matter in Astro and Particle Physics (DARK98), ed. H.V. Klapdor-Kleingrothaus, Heidelberg, Germany, 20-25 July 1998. Related talks were given at SLAC (21.08.1998), FERMILAB (27.08.1998) and ICTP (16.09.1998)
arxiv created 1998/10/01 · openalex publication_date 1998/10/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We review the scenario of baryogenesis through leptogenesis induced by the out-of-equilibrium decays of heavy neutrinos. We pay special attention to the resonant phenomenon of CP violation through mixing of two nearly degenerate heavy Majorana neutrinos and show how unitarity and CPT invariance is maintained within the resummation approach. An important consequence of this is that the leptogenesis scale may be as low as 1 TeV, even for models with universal Yukawa couplings. We briefly discuss the impact of finite temperature effects and low-energy constraints to the afore-mentioned mechanism of CP violation.