Cosmic-ray upscattered inelastic dark matter

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dc.contributor.authorBell, Nicole F.en
dc.contributor.authorDent, James B.en
dc.contributor.authorDutta, Bhaskaren
dc.contributor.authorGhosh, Sumiten
dc.contributor.authorKumar, Jasonen
dc.contributor.authorNewstead, Jayden L.en
dc.contributor.authorShoemaker, Ian M.en
dc.date.accessioned2022-09-20T13:00:25Zen
dc.date.available2022-09-20T13:00:25Zen
dc.date.issued2021-10-21en
dc.description.abstractLight nonrelativistic components of the galactic dark matter halo elude direct detection constraints because they lack the kinetic energy to create an observable recoil. However, cosmic rays can upscatter dark matter to significant energies, giving direct detection experiments access to previously unreachable regions of parameter space at very low dark matter mass. In this work we extend the cosmic-ray dark matter formalism to models of inelastic dark matter and show that previously inaccessible regions of the mass-splitting p ammeter space can be probed. Conventional direct detection of nonrelativistic halo dark matter is limited to mass splittings of delta similar to 10 keV and is highly mass dependent. We find that including the effect of cosmic-ray upscattering can extend the reach to mass splittings of delta similar to 100 MeV and maintain that reach at much lower dark matter mass.en
dc.description.notesThe work of B. D. and S. G. are supported in part by the DOE Grant No. DE-SC0010813. The work of J. K. is supported in part by DOE Grant No. DE-SC0010504. J. L. N. and N. F. B. were supported by the Australian Research Council through the ARC Centre of Excellence for Dark Matter Particle Physics, Grant No. CE200100008. The work of I. M. S. is supported by the U.S. Department of Energy under the Award No. DE-SC0020250.en
dc.description.sponsorshipDOE [DE-SC0010504, DE-SC0010813]; Australian Research Council through the ARC Centre of Excellence for Dark Matter Particle Physics [CE200100008]; U.S. Department of Energy [DE-SC0020250]en
dc.description.versionPublished versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.doihttps://doi.org/10.1103/PhysRevD.104.076020en
dc.identifier.eissn2470-0029en
dc.identifier.issn2470-0010en
dc.identifier.issue7en
dc.identifier.other76020en
dc.identifier.urihttp://hdl.handle.net/10919/111927en
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.subjectionizationen
dc.subjectelectronsen
dc.titleCosmic-ray upscattered inelastic dark matteren
dc.title.serialPhysical Review Den
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten

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