Neutrino portals, terrestrial upscattering, and atmospheric neutrinos

dc.contributor.authorGustafson, R. Andrewen
dc.contributor.authorPlestid, Ryanen
dc.contributor.authorShoemaker, Ian M.en
dc.date.accessioned2023-04-17T19:16:05Zen
dc.date.available2023-04-17T19:16:05Zen
dc.date.issued2022-11en
dc.description.abstractWe consider the upscattering of atmospheric neutrinos in the interior of Earth producing heavy neutral leptons (HNLs) which subsequently decay inside large volume detectors (e.g., Super-Kamiokande or DUNE). We compute the flux of upscattered HNLs arriving at a detector and the resultant event rate of visible decay products. Using Super-Kamiokande's atmospheric neutrino dataset we find new leading constraints for dipole couplings to any flavor with HNL masses between roughly 10 and 100 MeV. For mass mixing with tau neutrinos, we probe new parameter space near HNL masses of similar to 20 MeV with prospects for substantial future improvements. We also discuss prospects at future experiments such as DUNE, JUNO, and Hyper-Kamiokande.en
dc.description.notesWe thank Volodymyr Takhistov for comments on our manuscript and for useful discussions regarding the classification of single photons in SK. R. P. thanks Patrick Fox for comments on our manuscript and for helpful discussions regarding the numerical implementation of the upscattering volume integral, as well as Pedro Machado for comments on our manuscript and for discussion on atmospheric neutrino backgrounds in Super-Kamiokande and DUNE. We also thank Carlos Argueelles for helpful discussions and feedback. This work was supported by the U.S. Department of Energy, Office of Science, Office of High Energy Physics, under Awards No. DE-SC0019095 and No. DE-SC002025. This manuscript has been authored by Fermi Research Alliance, LLC under Contract No. DE-AC02-07CH11359 with the U.S. Department of Energy, Office of Science, Office of High Energy Physics. This research was performed at the Kavli Institute for Theoretical Physics which is supported in part by the National Science Foundation under Grant No. NSF PHY-1748958 and at the Aspen Center for Physics, which is supported by National Science Foundation Grant No. PHY-1607611.en
dc.description.sponsorshipU.S. Department of Energy, Office of Science, Office of High Energy Physics [DE-SC0019095, DE-SC002025, DE-AC02-07CH11359]; National Science Foundation [NSF PHY-1748958, PHY-1607611]en
dc.description.versionPublished versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.doihttps://doi.org/10.1103/PhysRevD.106.095037en
dc.identifier.eissn2470-0029en
dc.identifier.issue9en
dc.identifier.other95037en
dc.identifier.urihttp://hdl.handle.net/10919/114531en
dc.identifier.volume106en
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.subjectmajoranaen
dc.subjectdiracen
dc.subjectmodelen
dc.subjectvmsmen
dc.titleNeutrino portals, terrestrial upscattering, and atmospheric neutrinosen
dc.title.serialPhysical Review Den
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten

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