Inverse seesaw model with a modular S4 symmetry: lepton flavor mixing and warm dark matter
被引:7
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作者:
Zhang, Xinyi
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机构:
Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R ChinaChinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China
Zhang, Xinyi
[1
]
Zhou, Shun
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Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China
Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R ChinaChinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China
Zhou, Shun
[1
,2
]
机构:
[1] Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China
[2] Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R China
In this paper, we present a systematic investigation on simple inverse seesaw models for neutrino masses and flavor mixing based on the modular S-4 symmetry. Two right-handed neutrinos and three extra fermion singlets are introduced to account for light neutrino masses through the inverse seesaw mechanism, and to provide a keV-mass sterile neutrino as the candidate for warm dark matter in our Universe. Considering all possible modular forms with weights no larger than four, we obtain twelve models, among which we find one is in excellent agreement with the observed lepton mass spectra and flavor mixing. Moreover, we explore the allowed range of the sterile neutrino mass and mixing angles, by taking into account the direct search of X-ray line and the Lyman- ff observations. The model predictions for neutrino mixing parameters and the dark matter abundance will be readily testable in future neutrino oscillation experiments and cosmological observations.
机构:
Max Planck Inst Kernphys, D-69029 Heidelberg, Germany
Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Peoples R China
Chinese Acad Sci, Grad Sch, Beijing 100012, Peoples R ChinaMax Planck Inst Kernphys, D-69029 Heidelberg, Germany
机构:
Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China
Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R ChinaChinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China
Wang, Xin
Zhou, Shun
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机构:
Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China
Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R ChinaChinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China