研究者総覧
論文
- タイトル
- タイトル（英）
- Resonant leptogenesis at TeV-scale and neutrinoless double beta decay
- 参照URL
- https://researchmap.jp/takahiro-yoshida/published_papers/32895964
- 著者
- 著者（英）
- Takehiko Asaka,Takahiro Yoshida
- 担当区分
- 概要
- 概要（英）
A<sc>bstract</sc> We investigate a resonant leptogenesis scenario by quasi-degenerate righthanded neutrinos which have TeV-scale masses. Especially, we consider the case when two right-handed neutrinos are responsible to leptogenesis and the seesaw mechanism for active neutrino masses, and assume that the CP violation occurs only in the mixing matrix of active neutrinos. In this case the sign of the baryon asymmetry depends on the Dirac and Majorana CP phases as well as the mixing angle of the right-handed neutrinos. It is shown how the yield of the baryon asymmetry correlates with these parameters. In addition, we find that the effective neutrino mass in the neutrinoless double beta decay receives an additional constraint in order to account for the observed baryon asymmetry depending on the masses and mixing angle of right-handed neutrinos.- 出版者・発行元
- 出版者・発行元（英）
- Springer Science and Business Media LLC
- 誌名
- 誌名（英）
- Journal of High Energy Physics
- 巻
- 2019
- 号
- 9
- 開始ページ
- 終了ページ
- 出版年月
- 2019年9月
- 査読の有無
- 査読有り
- 招待の有無
- 掲載種別
- 研究論文（学術雑誌）
- ISSN
- DOI URL
- https://doi.org/10.1007/jhep09(2019)089
- 共同研究・競争的資金等の研究課題
研究者
𠮷田 貴裕
(ヨシダ タカヒロ)