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dc.contributor.authorKahlhoefer, Felix
dc.contributor.authorUrdshals, Einar
dc.date.accessioned2022-11-21T10:05:45Z
dc.date.available2022-11-21T10:05:45Z
dc.date.created2021-02-18T16:22:15Z
dc.date.issued2020
dc.identifier.citationPhysics Letters B. 2020, 807, .en_US
dc.identifier.issn0370-2693
dc.identifier.urihttps://hdl.handle.net/11250/3033091
dc.description.abstractWe present a simple model of two dark matter species with opposite millicharge that can form electrically neutral bound states via the exchange of a massive dark photon. If bound state formation is suppressed at low temperatures, a sub-dominant fraction of millicharged particles remains at late times, which can give rise to interesting features in the 21 cm absorption profile at cosmic dawn. The dominant neutral component, on the other hand, can have dipole interactions with ordinary matter, leading to non-standard signals in direct detection experiments. We identify the parameter regions predicting a percent-level ionisation fraction and study constraints from laboratory searches for dark matter scattering and dark photon decays.en_US
dc.language.isoengen_US
dc.publisherElsevier Scienceen_US
dc.rightsNavngivelse 4.0 Internasjonal*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/deed.no*
dc.titleOn dark atoms, massive dark photons and millicharged sub-componentsen_US
dc.title.alternativeOn dark atoms, massive dark photons and millicharged sub-componentsen_US
dc.typePeer revieweden_US
dc.typeJournal articleen_US
dc.description.versionpublishedVersionen_US
dc.source.pagenumber9en_US
dc.source.volume807en_US
dc.source.journalPhysics Letters Ben_US
dc.identifier.doi10.1016/j.physletb.2020.135601
dc.identifier.cristin1891474
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode2


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Navngivelse 4.0 Internasjonal
Except where otherwise noted, this item's license is described as Navngivelse 4.0 Internasjonal