Active-to-sterile neutrino dipole portal and the XENON1T excess

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dc.contributor.authorShoemaker, Ian M.en
dc.contributor.authorTsai, Yu-Daien
dc.contributor.authorWyenberg, Jasonen
dc.date.accessioned2022-09-01T14:27:38Zen
dc.date.available2022-09-01T14:27:38Zen
dc.date.issued2021-12-27en
dc.description.abstractIn this paper, we find that a magnetic transition dipole moment between tau and sterile neutrinos can account for the XENON1T excess events. Unlike the ordinary neutrino dipole moment, the introduction of the new sterile mass scale allows for astrophysical bounds to be suppressed. Interestingly, the best-fit regions that are compatible with the SN1987A imply either boron-8 as the source flux. We find that sterile neutrinos in the similar to(500-800) keV mass range are capable of evading astrophysical constraints while being able to successfully explain the XENON1T event rate. We also set new constraints on the dipole portal based on the Xenon 1T data. The sterile neutrino in the best fit parameter space may have significant effects on big bang nucleosynthesis (BBN). We show the region in which a low reheating temperature of the Universe may allow the BBN constraints to be alleviated.en
dc.description.notesWe thank Nikita Blinov, Pilar Coloma, Gordan Krnjaic, Ryan Plestid, Maxim Pospelov, Evan Shockley, and Luca Vecchi for useful discussions. The work of I. M. S. is supported by the U.S. Department of Energy under the Award No. DE-SC0020250. This document was prepared by Y.-D. T. using the resources of the Fermi National Accelerator Laboratory (Fermilab) , a U.S. Department of Energy, Office of Science, HEP User Facility. Fermilab is managed by Fermi Research Alliance, LLC (FRA) , acting under Contract No. DE-AC02-07CH11359.en
dc.description.sponsorshipU.S. Department of Energy [DE-SC0020250]; Fermi Research Alliance, LLC (FRA) [DE-AC02-07CH11359]en
dc.description.versionPublished versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.doihttps://doi.org/10.1103/PhysRevD.104.115026en
dc.identifier.eissn2470-0029en
dc.identifier.issn2470-0010en
dc.identifier.issue11en
dc.identifier.other115026en
dc.identifier.urihttp://hdl.handle.net/10919/111685en
dc.identifier.volume104en
dc.language.isoenen
dc.publisherAmerican Physical Societyen
dc.rightsCreative Commons Attribution 4.0 Internationalen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.subjectdark-matteren
dc.subjectmomenten
dc.subjectdecaysen
dc.titleActive-to-sterile neutrino dipole portal and the XENON1T excessen
dc.title.serialPhysical Review Den
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten

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