Freeze-in leptogenesis with 3 right-handed neutrinos
| Autor: | Valerie Domcke, Asmaa Abada, Juraj Klaric, Marco Drewes, Giorgio Arcadi, Michele Lucente |
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| Přispěvatelé: | Laboratoire de Physique Théorique d'Orsay [Orsay] (LPT), Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS), Michele Lucente, Asmaa Abada, Giorgio Arcadi, Valerie Domcke, Marco Drewes, Juraj Klaric, Lucente, Michele, Abada, Asmaa, Arcadi, Giorgio, Domcke, Valerie, Drewes, Marco, Klaric, Juraj |
| Rok vydání: | 2019 |
| Předmět: |
Particle physics
interpretation of experiments: CERN LHC Coll FOS: Physical sciences High Energy Physics - Phenomenology (hep-ph) Baryon asymmetry Seesaw molecular geometry radiative correction neutrino: mass lepton number Physics leptogenesis scale: electroweak interaction High Energy Physics::Phenomenology neutrino: mixing angle neutrino: heavy Lepton number seesaw model High Energy Physics - Phenomenology MAJORANA neutrino: right-handed mass: Majorana [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph] Leptogenesis baryon: asymmetry High Energy Physics::Experiment Neutrino Electroweak scale Phenomenology (particle physics) |
| Zdroj: | PoS 39th International Conference on High Energy Physics 39th International Conference on High Energy Physics, Jul 2018, Seoul, South Korea. pp.306, ⟨10.5281/zenodo.1289773⟩ Proceedings of The 39th International Conference on High Energy Physics — PoS(ICHEP2018) Scopus-Elsevier |
| DOI: | 10.22323/1.340.0306 |
| Popis: | We provide the first systematic study of the viable parameter space for leptogenesis in the type-I seesaw model with three right-handed neutrinos whose Majorana masses lie below the electroweak scale. We highlight the very rich phenomenology of this scenario and discuss several mechanisms that can help to enhance the baryon asymmetry of the Universe. This allows for much larger heavy neutrino mixing angles than in the minimal scenario with two heavy neutrinos, resulting in solutions that can be probed with the LHC and other experiments. The light neutrino masses can be protected from radiative corrections by an approximate symmetry related to generalised lepton number. 4 pages, 1 figure. To appear in the proceedings of the 39th International Conference on High Energy Physics (ICHEP2018), 4-11 July 2018 in Seoul, Korea |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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