dc.contributor.author | Abe, K. | |
dc.contributor.author | Bravo-Berguño, D. | |
dc.contributor.author | Labarga Echeverría, Luis Alfonso | |
dc.contributor.author | Martí, Ll. | |
dc.contributor.author | Zaldivar, B. | |
dc.contributor.other | UAM. Departamento de Física Teórica | es_ES |
dc.date.accessioned | 2023-03-30T08:18:37Z | |
dc.date.available | 2023-03-30T08:18:37Z | |
dc.date.issued | 2022-06-24 | |
dc.identifier.citation | Astroparticle Physics 139 (2022): 102702 | es_ES |
dc.identifier.issn | 0927-6505 | es_ES |
dc.identifier.uri | http://hdl.handle.net/10486/706829 | |
dc.description | Artículo escrito por un elevado número de autores, solo se referencian el que aparece en primer lugar, el nombre del grupo de colaboración, si le hubiere, y los autores pertenecientes a la UAM | es_ES |
dc.description.abstract | Due to a very low production rate of electron anti-neutrinos ( -v e) via nuclear fusion in the Sun, a flux of solar -v e is unexpected. An appearance of -v e in solar neutrino flux opens a new window for the new physics beyond the standard model. In particular, a spin-flavor precession process is expected to convert an electron neutrino into an electron anti-neutrino (ve → ̄ve) when neutrino has a finite magnetic moment. In this work, we have searched for solar v e in the Super-Kamiokande experiment, using neutron tagging to identify their inverse beta decay signature. We identified 78 v e candidates for neutrino energies of 9.3 to 17.3 MeV in 2970.1 live days with a fiducial volume of 22.5 kiloton water (183.0 kton⋅year exposure). The energy spectrum has been consistent with background predictions and we thus derived a 90% confidence level upper limit of 4.7×10−4 on the ve -> -v e conversion probability in the Sun. We used this result to evaluate the sensitivity of future experiments, notably the Super-Kamiokande Gadolinium (SK-Gd) upgrade | es_ES |
dc.format.extent | 12 pag. | es_ES |
dc.format.mimetype | application/pdf | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | Elsevier B.V. | es_ES |
dc.relation.ispartof | Astroparticle Physics | es_ES |
dc.rights | ©2022.TheAuthor(s) | es_ES |
dc.subject.other | Neutron tagging | es_ES |
dc.subject.other | Water Cherenkov detector | es_ES |
dc.subject.other | Electron antineutrinos | es_ES |
dc.subject.other | Neutrino–antineutrino oscillation | es_ES |
dc.subject.other | Solar neutrino | es_ES |
dc.title | Search for solar electron anti-neutrinos due to spin-flavor precession in the Sun with Super-Kamiokande-IV | es_ES |
dc.type | article | es_ES |
dc.subject.eciencia | Física | es_ES |
dc.abstract | | |
dc.identifier.doi | 10.1016/j.astropartphys.2022.102702 | es_ES |
dc.identifier.publicationfirstpage | 102702-1 | es_ES |
dc.identifier.publicationlastpage | 102702-12 | es_ES |
dc.identifier.publicationvolume | 139 | es_ES |
dc.relation.projectID | Gobierno de España. PGC2018-099388-B-I00 | es_ES |
dc.relation.projectID | info:eu-repo/grantAgreement/EC/H2020/ 822070/EU//JENNIFER2 | es_ES |
dc.relation.projectID | info:eu-repo/grantAgreement/EC/H2020/87254/EU//SK2H | es_ES |
dc.type.version | info:eu-repo/semantics/publishedVersion | es_ES |
dc.rights.accessRights | openAccess | es_ES |
dc.facultadUAM | Facultad de Ciencias | es_ES |