Leptogenesis from low-energy CP violation in minimal left-right symmetric model

doi:10.1016/j.nuclphysb.2022.115670

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	Leptogenesis from low-energy CP violation in minimal left-right symmetric model
	Zhang, Xinyi ; Yu, Jiang-Hao ; Ma, Bo-Qiang
刊名	NUCLEAR PHYSICS B
	2022
卷号	976 页码:115670
关键词	NEUTRINO MASSES SEESAW ASYMMETRY PARITY SCALE
ISSN号	0550-3213
DOI	10.1016/j.nuclphysb.2022.115670
英文摘要	We perform a thermal unflavored leptogenesis analysis on minimal left-right symmetric models with discrete left-right symmetry identified as generalized parity or charge conjugation. When left-right symmetry is unbroken in the lepton Yukawa sector, the neutrino Dirac coupling matrix is completely determined by neutrino masses and mixing angles, allowing CP violation needed to generate leptogenesis totally resides in the low-energy sector. With two lepton asymmetry generation ways, both type I and mixed type I+II neutrino mass generation mechanisms are considered. After solving the Boltzmann equations numerically, we find that the low-energy CP phases in the lepton mixing matrix can successfully produce the observed baryon asymmetry, and in some cases, the Dirac CP phase can be the only source of CP violation. Finally, we discuss the interplay among low-energy CP phase measurements, leptogenesis, and neutrinoless double beta decay. We show that the viable models for successful leptogenesis can be probed in next-generation neutrinoless double-beta decay experiments. (C) 2022 The Author(s). Published by Elsevier B.V.
学科主题	Physics
语种	英语
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/27785]
专题	理论物理研究所_理论物理所1978-2010年知识产出
作者单位	1.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China 2.[Zhang, Xinyi 3.Peking Univ, Sch Phys, Beijing 100871, Peoples R China 4.Peking Univ, State Key Lab Nucl Phys & Technol, Beijing 100871, Peoples R China 5.Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R China 6.Univ Chinese Acad Sci, Hangzhou Inst Adv Study, Sch Fundamental Phys & Math Sci, Hangzhou 310024, Peoples R China 7.Collaborat Innovat Ctr Quantum Matter, Beijing, Peoples R China 8.[Yu, Jiang-Hao 9.Peking Univ, Ctr High Energy Phys, Beijing 100871, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Xinyi,Yu, Jiang-Hao,Ma, Bo-Qiang. Leptogenesis from low-energy CP violation in minimal left-right symmetric model[J]. NUCLEAR PHYSICS B,2022,976:115670.
APA	Zhang, Xinyi,Yu, Jiang-Hao,&Ma, Bo-Qiang.(2022).Leptogenesis from low-energy CP violation in minimal left-right symmetric model.NUCLEAR PHYSICS B,976,115670.
MLA	Zhang, Xinyi,et al."Leptogenesis from low-energy CP violation in minimal left-right symmetric model".NUCLEAR PHYSICS B 976(2022):115670.