https://scholars.lib.ntu.edu.tw/handle/123456789/626544
標題: | Dark Sector as Origin of Light Lepton Mass and Its Phenomenology | 作者: | CHENG-WEI CHIANG Ryomei Obuchi Kei Yagyu |
關鍵字: | Theories of Flavour; Dark Matter at Colliders; Vector-Like Fermions; High Energy Physics - Phenomenology; High Energy Physics - Phenomenology | 公開日期: | 16-二月-2022 | 出版社: | SPRINGER | 卷: | 2022 | 期: | 5 | 來源出版物: | JOURNAL OF HIGH ENERGY PHYSICS | 摘要: | We discuss a model with a dark sector, in which smallness of mass for charged leptons and neutrinos can naturally be explained by one-loop effects mediated by particles in the dark sector. These new particles, including dark matter candidates, also contribute to the anomalous magnetic dipole moment, denoted by $(g-2)$, for charged leptons. We show that our model can explain the muon $(g-2)$ anomaly and observed neutrino oscillations under the constraints from lepton flavor violating decays of charged leptons. We illustrate that the scenario with scalar dark matter is highly constrained by direct searches at the LHC, while that with fermionic dark matter allows for considering dark scalars with masses of order 100 GeV. Our scenario can be tested by a precise measurement of the muon Yukawa coupling as well as the direct production of dark scalar bosons at future electron-positron colliders. |
描述: | Version accepted for publication in JHEP |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/626544 | ISSN: | 1029-8479 | DOI: | 10.1007/JHEP05(2022)070 |
顯示於: | 物理學系 |
在 IR 系統中的文件,除了特別指名其著作權條款之外,均受到著作權保護,並且保留所有的權利。