Modular A4 invariance and leptogenesis
Abstract We consider a model with three right-handed neutrinos in which Yukawa coupling constants and Majorana masses are obtained by requiring the modular A4 symmetry. It has been shown that the model can explain mass hierarchies and mixing patterns of charged leptons and neutrinos with the seesaw...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2020-01-01
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| Series: | Journal of High Energy Physics |
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| Online Access: | https://doi.org/10.1007/JHEP01(2020)144 |
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| _version_ | 1832586158398242816 |
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| author | Takehiko Asaka Yongtae Heo Takuya H. Tatsuishi Takahiro Yoshida |
| author_facet | Takehiko Asaka Yongtae Heo Takuya H. Tatsuishi Takahiro Yoshida |
| author_sort | Takehiko Asaka |
| collection | DOAJ |
| description | Abstract We consider a model with three right-handed neutrinos in which Yukawa coupling constants and Majorana masses are obtained by requiring the modular A4 symmetry. It has been shown that the model can explain mass hierarchies and mixing patterns of charged leptons and neutrinos with the seesaw mechanism. In this article we investigate the leptogenesis by decays of right-handed neutrinos in this model. It is shown that masses of right-handed neutrinos are about 1013 GeV in order to account for the observed baryon asymmetry of the universe. Furthermore, the positive sign of the baryon asymmetry is obtained only for the limited ranges of mixing angles and CP violation phases of active neutrinos, which can be tested by future neutrino experiments. |
| format | Article |
| id | doaj-art-cc547276418f451c9e4ea3f3e801af95 |
| institution | Kabale University |
| issn | 1029-8479 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj-art-cc547276418f451c9e4ea3f3e801af952025-01-26T12:11:24ZengSpringerOpenJournal of High Energy Physics1029-84792020-01-012020111710.1007/JHEP01(2020)144Modular A4 invariance and leptogenesisTakehiko Asaka0Yongtae Heo1Takuya H. Tatsuishi2Takahiro Yoshida3Department of Physics, Niigata UniversityGraduate School of Science and Technology, Niigata UniversityDepartment of Physics, Hokkaido UniversityGraduate School of Science and Technology, Niigata UniversityAbstract We consider a model with three right-handed neutrinos in which Yukawa coupling constants and Majorana masses are obtained by requiring the modular A4 symmetry. It has been shown that the model can explain mass hierarchies and mixing patterns of charged leptons and neutrinos with the seesaw mechanism. In this article we investigate the leptogenesis by decays of right-handed neutrinos in this model. It is shown that masses of right-handed neutrinos are about 1013 GeV in order to account for the observed baryon asymmetry of the universe. Furthermore, the positive sign of the baryon asymmetry is obtained only for the limited ranges of mixing angles and CP violation phases of active neutrinos, which can be tested by future neutrino experiments.https://doi.org/10.1007/JHEP01(2020)144Cosmology of Theories beyond the SMNeutrino Physics |
| spellingShingle | Takehiko Asaka Yongtae Heo Takuya H. Tatsuishi Takahiro Yoshida Modular A4 invariance and leptogenesis Journal of High Energy Physics Cosmology of Theories beyond the SM Neutrino Physics |
| title | Modular A4 invariance and leptogenesis |
| title_full | Modular A4 invariance and leptogenesis |
| title_fullStr | Modular A4 invariance and leptogenesis |
| title_full_unstemmed | Modular A4 invariance and leptogenesis |
| title_short | Modular A4 invariance and leptogenesis |
| title_sort | modular a4 invariance and leptogenesis |
| topic | Cosmology of Theories beyond the SM Neutrino Physics |
| url | https://doi.org/10.1007/JHEP01(2020)144 |
| work_keys_str_mv | AT takehikoasaka modulara4invarianceandleptogenesis AT yongtaeheo modulara4invarianceandleptogenesis AT takuyahtatsuishi modulara4invarianceandleptogenesis AT takahiroyoshida modulara4invarianceandleptogenesis |