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New constraints on heavy neutral leptons from Super-Kamiokande data

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dc.contributor.authorColoma, P.en
dc.contributor.authorHernandez, P.en
dc.contributor.authorMunoz, V.en
dc.contributor.authorShoemaker, Ian M.en
dc.contributor.departmentPhysicsen
dc.contributor.departmentCenter for Neutrino Physicsen
dc.date.accessioned2020-09-10T19:29:38Zen
dc.date.available2020-09-10T19:29:38Zen
dc.date.issued2020-03-12en
dc.description.abstractHeavy neutral leptons are predicted in many extensions of the Standard Model with massive neutrinos. If kinematically accessible, they can be copiously produced from kaon and pion decays in atmospheric showers, and subsequently decay inside large neutrino detectors. We perform a search for these long-lived particles using Super-Kamiokande multi-GeV neutrino data and derive stringent limits on the mixing with electron, muon and tau neutrinos as a function of the long-lived particle mass. We also present the limits on the branching ratio versus lifetime plane, which are helpful in determining the constraints in non-minimal models where the heavy neutral leptons have new interactions with the Standard Model.en
dc.description.notesPC thanks the CERN Theory Division for support and hospitality, and the Fermilab Theory Group for their hospitality during completion of this work. The work of VM is funded by CONICYT PFCHA/DOCTORADO BECAS CHILE/2018 -72180000. This work was partially supported by grants FPA2017-85985-P, PROMETEO/2019/083, and the European projects H2020-MSCAITN-2015//674896-ELUSIVES and 690575-InvisiblesPlus-H2020MSCA-RISE-2015. Thework of I.M.S. is supported by the U.S. Department of Energy under the award number DE-SC0020250.en
dc.description.sponsorshipCONICYT PFCHA/DOCTORADO BECAS CHILE/2018 [72180000]; U.S. Department of EnergyUnited States Department of Energy (DOE) [DE-SC0020250]; CERN Theory Division; [FPA2017-85985-P]; [PROMETEO/2019/083]; [H2020-MSCAITN-2015//674896-ELUSIVES]; [690575-InvisiblesPlus-H2020MSCA-RISE-2015]en
dc.format.mimetypeapplication/pdfen
dc.identifier.doihttps://doi.org/10.1140/epjc/s10052-020-7795-zen
dc.identifier.eissn1434-6052en
dc.identifier.issn1434-6044en
dc.identifier.issue3en
dc.identifier.other235en
dc.identifier.urihttp://hdl.handle.net/10919/99943en
dc.identifier.volume80en
dc.language.isoenen
dc.rightsCreative Commons Attribution 4.0 Internationalen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.titleNew constraints on heavy neutral leptons from Super-Kamiokande dataen
dc.title.serialEuropean Physical Journal Cen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten
dc.type.dcmitypeStillImageen

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