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Atomki anomaly and dark matter in a radiative seesaw model with gauged B : L symmetry
| Title: | Atomki anomaly and dark matter in a radiative seesaw model with gauged B : L symmetry |
| Authors: | Seto, Osamu Browse this author →KAKEN DB | | Shimomura, Takashi Browse this author |
| Issue Date: | 31-May-2017 |
| Publisher: | American Physical Society |
| Journal Title: | Physical review D |
| Volume: | 95 |
| Issue: | 9 |
| Start Page: | 095032-1 |
| End Page: | 095032-9 |
| Publisher DOI: | 10.1103/PhysRevD.95.095032 |
| Abstract: | Motivated by recently reported anomalies in a decay of an excited state of beryllium by the Atomki Collaboration, we study a radiative seesaw model with gauged B - L symmetry and a Z(2) parity. Assuming that the anomalies originate from the decay of the B - L gauge boson followed by the nuclear decay, the mass of the lightest right-handed neutrino or the dark matter candidate can be determined below 10 GeV. We show that for this mass range, the model can explain the anomalies in the beryllium decay and the relic dark matter abundance consistent with neutrino masses. We also predict its spin-independent cross section in direct detection experiments for this mass range. |
| Rights: | ©2017 American Physical Society |
| Type: | article |
| URI: | http://hdl.handle.net/2115/67012 |
| Appears in Collections: | 国際連携機構 (Institute for International Collaboration) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 瀬戸 治
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