| Autor: |
M, Klopf, E, Jericha, B, Märkisch, H, Saul, T, Soldner, H, Abele |
| Rok vydání: |
2018 |
| Zdroj: |
Physical review letters. 122(22) |
| ISSN: |
1079-7114 |
| Popis: |
Discrepancies from in-beam- and in-bottle-type experiments measuring the neutron lifetime are on the 4σ standard deviation level. In a recent publication Fornal and Grinstein proposed that the puzzle could be solved if the neutron would decay on the one percent level via a dark decay mode, one possible branch being n→χ+e^{+}e^{-}. With data from the Perkeo II experiment we set limits on the branching fraction and exclude a one percent contribution for 95% of the allowed mass range for the dark matter particle. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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