Active-Sterile Neutrino Oscillations and Leptogenesis
Active-Sterile Neutrino Oscillations and Leptogenesis作者机构:Universidad San Francisco de Quito Quito Ecuador
出 版 物:《Journal of Modern Physics》 (现代物理(英文))
年 卷 期:2021年第12卷第9期
页 面:1248-1266页
学科分类:07[理学] 070202[理学-粒子物理与原子核物理] 0702[理学-物理学]
主 题:Leptogenesis Majorana Neutrino Matter-Antimatter Asymmetry
摘 要:We study coherent active-sterile neutrino oscillations as a possible source of leptogenesis. To this end, we add 3 gauge invariant Weyl_R neutrinos to the Standard Model with both Dirac and Majorana type mass terms. We find that the measured active neutrino masses and mixings, and successful baryogenesis via leptogenesis, may be achieved with fine-tuning, if at least one of the sterile neutrinos has a mass in the approximate range 0.14 to 1.1 GeV.