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

001     491459
005     20230820024444.0
024 7 _ |a MAGIC:2022acl
|2 INSPIRETeX
024 7 _ |a inspire:2616525
|2 inspire
024 7 _ |a arXiv:2212.10527
|2 arXiv
024 7 _ |a altmetric:140376404
|2 altmetric
037 _ _ |a PUBDB-2023-00168
041 _ _ |a English
088 _ _ |a arXiv:2212.10527
|2 arXiv
088 _ _ |a KEK-TH-2487
|2 KEK
088 _ _ |a KEK-Cosmo-0307
|2 KEK
100 1 _ |a Abe, H.
|0 H.Abe.4
|b 0
245 _ _ |a Search for Gamma-ray Spectral Lines from Dark Matter Annihilation up to 100 TeV towards the Galactic Center with MAGIC
260 _ _ |c 2022
336 7 _ |a Preprint
|b preprint
|m preprint
|0 PUB:(DE-HGF)25
|s 1673967357_8619
|2 PUB:(DE-HGF)
336 7 _ |a WORKING_PAPER
|2 ORCID
336 7 _ |a Electronic Article
|0 28
|2 EndNote
336 7 _ |a preprint
|2 DRIVER
336 7 _ |a ARTICLE
|2 BibTeX
336 7 _ |a Output Types/Working Paper
|2 DataCite
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 Line-like features in TeV $\gamma$-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 $\gamma$-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 $\gamma$-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 line-like spectral feature is found in our analysis. Therefore, we constrain the cross section for dark matter annihilation into two photons to $\langle \sigma v \rangle \lesssim 5 \times 10^{-28}\,\mathrm{cm^3\,s^{-1}}$ at 1 TeV and $\langle \sigma v \rangle \lesssim 1 \times 10^{-25}\,\mathrm{cm^3\,s^{-1}}$ 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 INSPIRE
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
|2 INSPIRE
650 _ 7 |a spectral
|2 INSPIRE
650 _ 7 |a galaxy
|2 INSPIRE
650 _ 7 |a MAGIC
|2 INSPIRE
650 _ 7 |a sensitivity
|2 INSPIRE
650 _ 7 |a satellite
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650 _ 7 |a direct detection
|2 INSPIRE
650 _ 7 |a two-photon
|2 INSPIRE
650 _ 7 |a background
|2 INSPIRE
650 _ 7 |a new physics
|2 INSPIRE
650 _ 7 |a Cherenkov counter
|2 INSPIRE
650 _ 7 |a supersymmetry
|2 INSPIRE
650 _ 7 |a gamma ray
|2 INSPIRE
693 _ _ |0 EXP:(DE-H253)MAGIC-20170101
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980 _ _ |a preprint
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980 _ _ |a I:(DE-H253)Z_MAGIC-20210408
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