Dark matter-neutrino interconversion at COHERENT, direct detection, and the early Universe

dc.contributor.authorHurtado, Nicholasen
dc.contributor.authorMir, Hanaen
dc.contributor.authorShoemaker, Ian M.en
dc.contributor.authorWelch, Elien
dc.contributor.authorWyenberg, Jasonen
dc.contributor.departmentCenter for Neutrino Physicsen
dc.contributor.departmentPhysicsen
dc.date.accessioned2020-12-18T15:10:12Zen
dc.date.available2020-12-18T15:10:12Zen
dc.date.issued2020-07-14en
dc.description.abstractWe study a dark matter (DM) model in which the dominant coupling to the standard model occurs through a neutrino-DM-scalar coupling. The new singlet scalar will generically have couplings to nuclei/electrons arising from renormalizable Higgs portal interactions. As a result, the DM particle X can convert into a neutrino via scattering on a target nucleus N: X + N -> nu + N, leading to striking signatures at direct detection experiments. Similarly, DM can be produced in neutrino scattering events at neutrino experiments: nu + N -> X + N, predicting spectral distortions at experiments such as COHERENT. Furthermore, the model allows for late kinetic decoupling of dark matter with implications for small-scale structure. At low masses, we find that COHERENT and late kinetic decoupling produce the strongest constraints on the model, while at high masses the leading constraints come from DM down-scattering at XENON1T and Borexino. Future improvement will come from CavNS data, ultralow threshold direct detection, and rare kaon decays.en
dc.description.notesWe are grateful to Jeff Dror and Robert McGehee for helpful conversations. This work is supported by the U.S. Department of Energy under the Award No. DE-SC0020250.en
dc.description.sponsorshipU.S. Department of EnergyUnited States Department of Energy (DOE) [DE-SC0020250]en
dc.format.mimetypeapplication/pdfen
dc.identifier.doihttps://doi.org/10.1103/PhysRevD.102.015006en
dc.identifier.eissn1550-2368en
dc.identifier.issn1550-7998en
dc.identifier.issue1en
dc.identifier.other15006en
dc.identifier.urihttp://hdl.handle.net/10919/101533en
dc.identifier.volume102en
dc.language.isoenen
dc.rightsCreative Commons Attribution 4.0 Internationalen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.titleDark matter-neutrino interconversion at COHERENT, direct detection, and the early Universeen
dc.title.serialPhysical Review Den
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten
dc.type.dcmitypeStillImageen

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