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

(MAGIC Collaboration) M. Artero; K. Asano; D. Baack; Babić, Ana; A. Baquero; U. Barres de Almeida; J. A. Barrio; I. Batković; J. Baxter; J. Becerra González; W. Bednarek; E. Bernardini; M. Bernardos; A. Berti; J. Besenrieder; W. Bhattacharyya; C. Bigongiari; A. Biland; O. Blanch; G. Bonnoli; Bošnjak, Željka; I. Burelli; G. Busetto; R. Carosi; M. Carretero-Castrillo; G. Ceribella; Y. Chai; A. Chilingarian; Cikota, Stefan; E. Colombo; J. L. Contreras; J. Cortina; S. Covino; G. D’Amico; V. D’Elia; P. Da Vela; F. Dazzi; A. De Angelis; B. De Lotto; A. Del Popolo; M. Delfino; J. Delgado; C. Delgado Mendez; D. Depaoli; F. Di Pierro; L. Di Venere; E. Do Souto Espiñeira; Dominis Prester, Dijana; A. Donini; D. Dorner; M. Doro; D. Elsaesser; G. Emery; V. Fallah Ramazani; L. Fariña; A. Fattorini; L. Font; C. Fruck; S. Fukami; Y. Fukazawa; R. J. García López; M. Garczarczyk; S. Gasparyan; M. Gaug; J. G. Giesbrecht Paiva; N. Giglietto; F. Giordano; P. Gliwny; Godinović, Nikola; J. G. Green; D. Green; D. Hadasch; A. Hahn; T. Hassan; L. Heckmann; J. Herrera; Hrupec, Dario; M. Hütten; R. Imazawa; T. Inada; R. Iotov; K. Ishio; I. Jiménez Martínez; J. Jormanainen; D. Kerszberg; Y. Kobayashi; H. Kubo; J. Kushida; A. Lamastra; Lelas, Damir; F. Leone; E. Lindfors; L. Linhoff; S. Lombardi; F. Longo; R. López-Coto; M. López-Moya; A. López-Oramas; S. Loporchio; A. Lorini; E. Lyard; B. Machado de Oliveira Fraga; P. Majumdar; M. Makariev; G. Maneva; N. Mang; M. Manganaro; S. Mangano; K. Mannheim; M. Mariotti; M. Martínez; A. Mas Aguilar; D. Mazin; S. Menchiari; S. Mender; Mićanović, Saša; D. Miceli; T. Miener; J. M. Miranda; R. Mirzoyan; E. Molina; H. A. Mondal; A. Moralejo; D. Morcuende; V. Moreno; T. Nakamori; C. Nanci; L. Nava; V. Neustroev; M. Nievas Rosillo; C. Nigro; K. Nilsson; K. Nishijima; T. Njoh Ekoume; K. Noda; S. Nozaki; Y. Ohtani; T. Oka; J. Otero-Santos; S. Paiano; M. Palatiello; D. Paneque; R. Paoletti; J. M. Paredes; Pavletić, Lovro; M. Persic; M. Pihet; F. Podobnik; P. G. Prada Moroni; E. Prandini; G. Principe; C. Priyadarshi; Puljak, Ivica; W. Rhode; M. Ribó; J. Rico; C. Righi; A. Rugliancich; N. Sahakyan; T. Saito; S. Sakurai; K. Satalecka; F. G. Saturni; B. Schleicher; K. Schmidt; F. Schmuckermaier; J. L. Schubert; T. Schweizer; J. Sitarek; V. Sliusar; D. Sobczynska; A. Spolon; A. Stamerra; Strišković, Jelena; D. Strom; M. Strzys; Y. Suda; Surić, Tihomir; M. Takahashi; R. Takeishi; F. Tavecchio; P. Temnikov; K. Terauchi; Terzić, Tomislav; M. Teshima; L. Tosti; S. Truzzi; A. Tutone; S. Ubach; J. van Scherpenberg; M. Vazquez Acosta; S. Ventura; V. Verguilov; I. Viale; C. F. Vigorito; V. Vitale; I. Vovk; R. Walter; M. Will; C. Wunderlich; T. Yamamoto; Zarić, Darko; N. Hiroshima; K. Kohri (2023) Search for Gamma-Ray Spectral Lines from Dark Matter Annihilation up to 100 TeV toward the Galactic Center with MAGIC. Physical Review Letters, 130 . ISSN 0031-9007

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Abstract

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 ⟨σ v ⟩≲5 ×10-28 cm3 s-1 at 1 TeV and ⟨σ v ⟩≲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.

Item Type:	Article
Uncontrolled Keywords:	dark matter; gamma ray astronomy; particle dark matter; milky way; cosmic ray & astroparticle detectors; cosmic rays & astroparticles; electromagnetic radiation astronomy; telescopes
Subjects:	NATURAL SCIENCES > Physics > Physics of Elementary Particles and Fields NATURAL SCIENCES > Physics > Astronomy and Astrophysics
Divisions:	Division of Experimental Physics
Projects:	Project title Project leader Project code Project type Visokoenergijska astronomija gama-zraka teleskopima MAGIC i CTA-MAGIC-CTA Ana Babić; Stefan Cikota; Iva Šnidarić; Nikola Godinović; Tihomir Surić; Željka Marija Bošnjak; Dijana Dominis Prester; Dario Hrupec; Tomislav Terzić; Saša Mićanović; Marina Manganaro; Lovro Pavletić IP-2016-06-9782 HRZZ
Depositing User:	Josipa Karadžole
Date Deposited:	05 May 2026 09:18
URI:	https://fulir.irb.hr:/id/eprint/11897
DOI:	10.1103/PhysRevLett.130.061002

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