Home > Publications database > Search for Gamma-Ray Spectral Lines from Dark Matter Annihilation up to 100 TeV toward the Galactic Center with MAGIC > print

001     588908
005     20250715172911.0
024 7 _ |a 10.1103/PhysRevLett.130.061002
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024 7 _ |a 0031-9007
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024 7 _ |a 1079-7114
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024 7 _ |a 1092-0145
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024 7 _ |a arXiv:2212.10527
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024 7 _ |a 10.3204/PUBDB-2023-05032
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041 _ _ |a English
082 _ _ |a 530
088 _ _ |a arXiv:2212.10527
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088 _ _ |a KEK-TH-2487
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088 _ _ |a KEK-Cosmo-0307
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100 1 _ |a Abe, H.
|b 0
245 _ _ |a Search for Gamma-Ray Spectral Lines from Dark Matter Annihilation up to 100 TeV toward the Galactic Center with MAGIC
260 _ _ |a College Park, Md.
|c 2023
|b APS
336 7 _ |a article
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336 7 _ |a Journal Article
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336 7 _ |a ARTICLE
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336 7 _ |a Journal Article
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500 _ _ |a Accepted in Phys. Rev. Lett., includes Supplemental materials. 9+4 pages, 3+3 figures, 3 tables. Corresponding authors: T. Inada, D. Kerszberg, M. Hütten
520 _ _ |a Linelike features in TeV γ rays constitute a “smoking gun” for TeV-scale particle dark matter and new physics. Probing the Galactic Center region with ground-based Cherenkov telescopes enables the search for TeV spectral features in immediate association with a dense dark matter reservoir at a sensitivity out of reach for satellite γ-ray detectors, and direct detection and collider experiments. We report on 223 hours of observations of the Galactic Center region with the MAGIC stereoscopic telescope system reaching γ-ray energies up to 100 TeV. We improved the sensitivity to spectral lines at high energies using large-zenith-angle observations and a novel background modeling method within a maximum-likelihood analysis in the energy domain. No linelike spectral feature is found in our analysis. Therefore, we constrain the cross section for dark matter annihilation into two photons to ⟨σv⟩≲5×10-28 cm3 s-1 at 1 TeV and ⟨σv⟩≲1×10-25 cm3 s-1 at 100 TeV, achieving the best limits to date for a dark matter mass above 20 TeV and a cuspy dark matter profile at the Galactic Center. Finally, we use the derived limits for both cuspy and cored dark matter profiles to constrain supersymmetric wino models.
536 _ _ |a 613 - Matter and Radiation from the Universe (POF4-613)
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588 _ _ |a Dataset connected to CrossRef, INSPIRE, Journals: bib-pubdb1.desy.de
650 _ 7 |a dark matter: annihilation
|2 INSPIRE
650 _ 7 |a energy: high
|2 INSPIRE
650 _ 7 |a dark matter: mass
|2 INSPIRE
650 _ 7 |a scale: TeV
|2 INSPIRE
650 _ 7 |a up: annihilation
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650 _ 7 |a spectral
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650 _ 7 |a galaxy
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650 _ 7 |a MAGIC
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650 _ 7 |a sensitivity
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650 _ 7 |a satellite
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650 _ 7 |a direct detection
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650 _ 7 |a two-photon
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650 _ 7 |a background
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650 _ 7 |a new physics
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650 _ 7 |a Cherenkov counter
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650 _ 7 |a supersymmetry
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650 _ 7 |a gamma ray
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700 1 _ |a Abe, S.
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700 1 _ |a Acciari, V. A.
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700 1 _ |a Aniello, T.
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700 1 _ |a Engels, A. Arbet
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700 1 _ |a Batković, I.
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773 _ _ |a 10.1103/PhysRevLett.130.061002
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|t Search for Gamma-ray Spectral Lines from Dark Matter Annihilation up to 100 TeV towards the Galactic Center with MAGIC
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