Loop-induced dark matter direct detection signals from gamma-ray lines
Improved limits as well as tentative claims for dark matter annihilation into gamma-ray lines have been presented recently. We study the direct detection cross section induced from dark matter annihilation into two photons in a model-independent fashion, assuming no additional couplings between dark...
| मुख्य लेखकों: | , , , , |
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| स्वरूप: | Journal article |
| भाषा: | English |
| प्रकाशित: |
2012
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| _version_ | 1826280720658595840 |
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| author | Frandsen, M Haisch, U Kahlhoefer, F Mertsch, P Schmidt-Hoberg, K |
| author_facet | Frandsen, M Haisch, U Kahlhoefer, F Mertsch, P Schmidt-Hoberg, K |
| author_sort | Frandsen, M |
| collection | OXFORD |
| description | Improved limits as well as tentative claims for dark matter annihilation into gamma-ray lines have been presented recently. We study the direct detection cross section induced from dark matter annihilation into two photons in a model-independent fashion, assuming no additional couplings between dark matter and nuclei. We find a striking non-standard recoil spectrum due to different destructively interfering contributions to the dark matter nucleus scattering cross section. While in the case of s-wave annihilation the current sensitivity of direct detection experiments is insufficient to compete with indirect detection searches, for p-wave annihilation the constraints from direct searches are comparable. This will allow to test dark matter scenarios with p-wave annihilation that predict a large di-photon annihilation cross section in the next generation of experiments. |
| first_indexed | 2024-03-07T00:17:57Z |
| format | Journal article |
| id | oxford-uuid:7b8083c6-e2fa-4e75-8d21-20b11dae30f2 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T00:17:57Z |
| publishDate | 2012 |
| record_format | dspace |
| spelling | oxford-uuid:7b8083c6-e2fa-4e75-8d21-20b11dae30f22022-03-26T20:51:02ZLoop-induced dark matter direct detection signals from gamma-ray linesJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:7b8083c6-e2fa-4e75-8d21-20b11dae30f2EnglishSymplectic Elements at Oxford2012Frandsen, MHaisch, UKahlhoefer, FMertsch, PSchmidt-Hoberg, KImproved limits as well as tentative claims for dark matter annihilation into gamma-ray lines have been presented recently. We study the direct detection cross section induced from dark matter annihilation into two photons in a model-independent fashion, assuming no additional couplings between dark matter and nuclei. We find a striking non-standard recoil spectrum due to different destructively interfering contributions to the dark matter nucleus scattering cross section. While in the case of s-wave annihilation the current sensitivity of direct detection experiments is insufficient to compete with indirect detection searches, for p-wave annihilation the constraints from direct searches are comparable. This will allow to test dark matter scenarios with p-wave annihilation that predict a large di-photon annihilation cross section in the next generation of experiments. |
| spellingShingle | Frandsen, M Haisch, U Kahlhoefer, F Mertsch, P Schmidt-Hoberg, K Loop-induced dark matter direct detection signals from gamma-ray lines |
| title | Loop-induced dark matter direct detection signals from gamma-ray lines |
| title_full | Loop-induced dark matter direct detection signals from gamma-ray lines |
| title_fullStr | Loop-induced dark matter direct detection signals from gamma-ray lines |
| title_full_unstemmed | Loop-induced dark matter direct detection signals from gamma-ray lines |
| title_short | Loop-induced dark matter direct detection signals from gamma-ray lines |
| title_sort | loop induced dark matter direct detection signals from gamma ray lines |
| work_keys_str_mv | AT frandsenm loopinduceddarkmatterdirectdetectionsignalsfromgammaraylines AT haischu loopinduceddarkmatterdirectdetectionsignalsfromgammaraylines AT kahlhoeferf loopinduceddarkmatterdirectdetectionsignalsfromgammaraylines AT mertschp loopinduceddarkmatterdirectdetectionsignalsfromgammaraylines AT schmidthobergk loopinduceddarkmatterdirectdetectionsignalsfromgammaraylines |