Revisiting the number-theory dark matter scenario and the weak gravity conjecture
We revisit the number-theory dark matter scenario where one of the light chiral fermions required by the anomaly cancellation conditions of U(1)B-L explains dark matter. Focusing on some of the integer B-L charge assignments, we explore a new region of the parameter space where there appear two ligh...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2019-03-01
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| Series: | Physics Letters B |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0370269319300292 |
| _version_ | 1818175347507593216 |
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| author | Kazunori Nakayama Fuminobu Takahashi Tsutomu T. Yanagida |
| author_facet | Kazunori Nakayama Fuminobu Takahashi Tsutomu T. Yanagida |
| author_sort | Kazunori Nakayama |
| collection | DOAJ |
| description | We revisit the number-theory dark matter scenario where one of the light chiral fermions required by the anomaly cancellation conditions of U(1)B-L explains dark matter. Focusing on some of the integer B-L charge assignments, we explore a new region of the parameter space where there appear two light fermions and the heavier one becomes a dark matter of mass ≲O(10)keV or O(10)MeV. The dark matter radiatively decays into neutrino and photon, which can explain the tantalizing hint of the 3.55keV X-ray line excess. Interestingly, the other light fermion can erase the AdS vacuum around the neutrino mass scale in a compactification of the standard model to 3D. This will make the standard model consistent with the AdS-WGC statement that stable non-supersymmetric AdS vacua should be absent. |
| first_indexed | 2024-12-11T19:58:51Z |
| format | Article |
| id | doaj.art-589a7c5cfda34a20b2a88c3648e2ce4d |
| institution | Directory Open Access Journal |
| issn | 0370-2693 |
| language | English |
| last_indexed | 2024-12-11T19:58:51Z |
| publishDate | 2019-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Physics Letters B |
| spelling | doaj.art-589a7c5cfda34a20b2a88c3648e2ce4d2022-12-22T00:52:34ZengElsevierPhysics Letters B0370-26932019-03-01790218224Revisiting the number-theory dark matter scenario and the weak gravity conjectureKazunori Nakayama0Fuminobu Takahashi1Tsutomu T. Yanagida2Department of Physics, Faculty of Science, The University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan; Kavli Institute for the Physics and Mathematics of the Universe (WPI), The University of Tokyo, Kashiwa, Chiba 277-8583, Japan; Corresponding author.Department of Physics, Tohoku University, Sendai, Miyagi 980-8578, Japan; Kavli Institute for the Physics and Mathematics of the Universe (WPI), The University of Tokyo, Kashiwa, Chiba 277-8583, JapanKavli Institute for the Physics and Mathematics of the Universe (WPI), The University of Tokyo, Kashiwa, Chiba 277-8583, Japan; T.D.Lee Institute and School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, ChinaWe revisit the number-theory dark matter scenario where one of the light chiral fermions required by the anomaly cancellation conditions of U(1)B-L explains dark matter. Focusing on some of the integer B-L charge assignments, we explore a new region of the parameter space where there appear two light fermions and the heavier one becomes a dark matter of mass ≲O(10)keV or O(10)MeV. The dark matter radiatively decays into neutrino and photon, which can explain the tantalizing hint of the 3.55keV X-ray line excess. Interestingly, the other light fermion can erase the AdS vacuum around the neutrino mass scale in a compactification of the standard model to 3D. This will make the standard model consistent with the AdS-WGC statement that stable non-supersymmetric AdS vacua should be absent.http://www.sciencedirect.com/science/article/pii/S0370269319300292 |
| spellingShingle | Kazunori Nakayama Fuminobu Takahashi Tsutomu T. Yanagida Revisiting the number-theory dark matter scenario and the weak gravity conjecture Physics Letters B |
| title | Revisiting the number-theory dark matter scenario and the weak gravity conjecture |
| title_full | Revisiting the number-theory dark matter scenario and the weak gravity conjecture |
| title_fullStr | Revisiting the number-theory dark matter scenario and the weak gravity conjecture |
| title_full_unstemmed | Revisiting the number-theory dark matter scenario and the weak gravity conjecture |
| title_short | Revisiting the number-theory dark matter scenario and the weak gravity conjecture |
| title_sort | revisiting the number theory dark matter scenario and the weak gravity conjecture |
| url | http://www.sciencedirect.com/science/article/pii/S0370269319300292 |
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