Show simple item record

dc.contributor.authorAbe, K.
dc.contributor.authorBravo-Berguño, D.
dc.contributor.authorLabarga Echeverría, Luis Alfonso 
dc.contributor.authorMartí, Ll.
dc.contributor.authorZaldivar, B.
dc.contributor.otherUAM. Departamento de Física Teóricaes_ES
dc.date.accessioned2023-03-30T08:18:37Z
dc.date.available2023-03-30T08:18:37Z
dc.date.issued2022-06-24
dc.identifier.citationAstroparticle Physics 139 (2022): 102702es_ES
dc.identifier.issn0927-6505es_ES
dc.identifier.urihttp://hdl.handle.net/10486/706829
dc.descriptionArtículo 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 UAMes_ES
dc.description.abstractDue 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) upgradees_ES
dc.format.extent12 pag.es_ES
dc.format.mimetypeapplication/pdfes_ES
dc.language.isoenges_ES
dc.publisherElsevier B.V.es_ES
dc.relation.ispartofAstroparticle Physicses_ES
dc.rights©2022.TheAuthor(s)es_ES
dc.subject.otherNeutron tagginges_ES
dc.subject.otherWater Cherenkov detectores_ES
dc.subject.otherElectron antineutrinoses_ES
dc.subject.otherNeutrino–antineutrino oscillationes_ES
dc.subject.otherSolar neutrinoes_ES
dc.titleSearch for solar electron anti-neutrinos due to spin-flavor precession in the Sun with Super-Kamiokande-IVes_ES
dc.typearticlees_ES
dc.subject.ecienciaFísicaes_ES
dc.abstract
dc.identifier.doi10.1016/j.astropartphys.2022.102702es_ES
dc.identifier.publicationfirstpage102702-1es_ES
dc.identifier.publicationlastpage102702-12es_ES
dc.identifier.publicationvolume139es_ES
dc.relation.projectIDGobierno de España. PGC2018-099388-B-I00es_ES
dc.relation.projectIDinfo:eu-repo/grantAgreement/EC/H2020/ 822070/EU//JENNIFER2es_ES
dc.relation.projectIDinfo:eu-repo/grantAgreement/EC/H2020/87254/EU//SK2Hes_ES
dc.type.versioninfo:eu-repo/semantics/publishedVersiones_ES
dc.rights.accessRightsopenAccesses_ES
dc.facultadUAMFacultad de Cienciases_ES


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record