Active-Sterile Neutrino Oscillations and Leptogenesis  

作　　者：Bruce Hoeneisen Bruce Hoeneisen(Universidad San Francisco de Quito, Quito, Ecuador)

机构地区：[1]Universidad San Francisco de Quito, Quito, Ecuador

出　　处：《Journal of Modern Physics》2021年第9期1248-1266,共19页现代物理（英文）

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.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.

关 键 词：LEPTOGENESIS Majorana Neutrino Matter-Antimatter Asymmetry 

分 类 号：O57[理学—粒子物理与原子核物理]