Résumé
Different extensions of the standard model of particle physics, such as braneworld or mirror matter models, predict the existence of a neutron sterile state, possibly as a dark matter candidate. This Letter reports a new experimental constraint on the probability p for neutron conversion into a hidden neutron, set by the STEREO experiment at the high flux reactor of the Institut Laue-Langevin. The limit is p<3.1×10-11 at 95% C.L. improving the previous limit by a factor of 13. This result demonstrates that short-baseline neutrino experiments can be used as competitive passing-through-walls neutron experiments to search for hidden neutrons.
| langue originale | Anglais |
|---|---|
| Numéro d'article | 061801 |
| journal | Physical Review Letters |
| Volume | 128 |
| Numéro de publication | 6 |
| Les DOIs | |
| état | Publié - 11 févr. 2022 |
| Modification externe | Oui |
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