Gamma-ray boxes from axion-mediated dark matter
DC Field | Value | Language |
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dc.contributor.author | Ibarra, Alejandro | - |
dc.contributor.author | Lee, Hyun Min | - |
dc.contributor.author | Gehler, Sergio Lopez | - |
dc.contributor.author | Park, Wan-Il | - |
dc.contributor.author | Pato, Miguel | - |
dc.date.accessioned | 2021-11-17T00:40:21Z | - |
dc.date.available | 2021-11-17T00:40:21Z | - |
dc.date.issued | 2013-05 | - |
dc.identifier.issn | 1475-7516 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/51481 | - |
dc.description.abstract | We compute the gamma-ray output of axion-mediated dark matter and derive the corresponding constraints set by recent data. In such scenarios the dark matter candidate is a Dirac fermion that pair-annihilates into axions and/or scalars. Provided that the axion decays (at least partly) into photons, these models naturally give rise to a box-shaped gamma-ray spectrum that may present two distinct phenomenological behaviours: a narrow box, resembling a line at half the dark matter mass, or a wide box, spanning an extensive energy range up to the dark matter mass. Remarkably, we find that in both cases a sizable gamma-ray flux is predicted for a thermal relic without fine-tuning the model parameters nor invoking boost factors. This large output is in line with recent Fermi-LAT observations towards the galactic centre region and is on the verge of being excluded. We then make use of the Fermi-LAT and H.E.S.S. data to derive robust, model-independent upper limits on the dark matter annihilation cross section for the narrow and wide box scenarios. H.E.S.S. constraints, in particular, turn out to match the ones from Fermi-LAT at hundreds of GeV and extend to multi-TeV masses. Future Cerenkov telescopes will likely probe gamma-ray boxes from thermal dark matter relics in the whole multi-TeV range, a region hardly accessible to direct detection, collider searches and other indirect detection strategies. | - |
dc.language | 영어 | - |
dc.language.iso | ENG | - |
dc.publisher | IOP PUBLISHING LTD | - |
dc.title | Gamma-ray boxes from axion-mediated dark matter | - |
dc.type | Article | - |
dc.identifier.doi | 10.1088/1475-7516/2013/05/016 | - |
dc.identifier.bibliographicCitation | JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS, no.5 | - |
dc.description.isOpenAccess | N | - |
dc.identifier.wosid | 000320161400018 | - |
dc.identifier.scopusid | 2-s2.0-84877987823 | - |
dc.citation.number | 5 | - |
dc.citation.title | JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS | - |
dc.type.docType | Article | - |
dc.publisher.location | 영국 | - |
dc.subject.keywordAuthor | dark matter theory | - |
dc.subject.keywordAuthor | axions | - |
dc.subject.keywordAuthor | gamma ray theory | - |
dc.subject.keywordPlus | NEUTRALINO ANNIHILATION | - |
dc.subject.keywordPlus | PHOTINO ANNIHILATION | - |
dc.subject.keywordPlus | RADIATIVE PROCESSES | - |
dc.subject.keywordPlus | 2 PHOTONS | - |
dc.subject.keywordPlus | QUARKONIUM | - |
dc.subject.keywordPlus | CANDIDATES | - |
dc.subject.keywordPlus | DENSITY | - |
dc.subject.keywordPlus | HALOES | - |
dc.subject.keywordPlus | PROBE | - |
dc.relation.journalResearchArea | Astronomy & Astrophysics | - |
dc.relation.journalResearchArea | Physics | - |
dc.relation.journalWebOfScienceCategory | Astronomy & Astrophysics | - |
dc.relation.journalWebOfScienceCategory | Physics, Particles & Fields | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
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