Produção Nacional
Revisado por pares
Search for Gamma-Ray Spectral Lines from Dark Matter Annihilation up to 100 TeV toward the Galactic Center with MAGIC
2023; American Physical Society; Volume: 130; Issue: 6 Linguagem: Inglês
10.1103/physrevlett.130.061002
ISSN1092-0145
AutoresHidetarô Abe, S. Abe, V. A. Acciari, T. Aniello, Stefano Ansoldi, L. A. Antonelli, A. Arbet Engels, Cornelia Arcaro, Manuel Artero, Katsuaki Asano, Dominik Baack, A. Babić, Andrés Baquero, U. Barres de Almeida, J. A. Barrio, Ivana Batković, J. Baxter, J. Becerra González, W. Bednarek, E. Bernardini, M. Bernardos, A. Berti, Jürgen Besenrieder, W. Bhattacharyya, C. Bigongiari, A. Biland, O. Blanch, G. Bonnoli, Ž. Bošnjak, Irene Burelli, G. Busetto, R. Carosi, M. Carretero-Castrillo, Giovanni Ceribella, Yating Chai, A. Chilingarian, S. Cikota, E. Colombo, J. L. Contreras, J. Cortina, S. Covino, Giacomo D’Amico, V. D’Elia, P. Da Vela, F. Dazzi, A. De Angelis, B. De Lotto, Antonino Del Popolo, M. Delfino, J. Delgado, C. Delgado Mendez, Davide Depaoli, F. Di Pierro, L. Di Venere, E. Do Souto Espiñeira, D. Dominis Prester, Alice Donini, D. Dorner, M. Doro, D. Elsäesser, Gabriel Emery, V. Fallah Ramazanı, L. Fariña, Alicia Fattorini, L. Font, C. Fruck, Satoshi Fukami, Y. Fukazawa, R. J. Garcı́a López, M. Garczarczyk, Sargis Gasparyan, M. Gaug, J. G. Giesbrecht Paiva, N. Giglietto, F. Giordano, Paweł Gliwny, N. Godinović, Jarred Gershon Green, D. Green, D. Hadasch, A. Hahn, T. Hassan, Lea Heckmann, J. Herrera, Dario Hrupec, Moritz Hütten, Ryo Imazawa, Tomohiro Inada, Roman Iotov, Kazuma Ishio, Irene Jiménez Martínez, Jenni Jormanainen, D. Kerszberg, Yukiho Kobayashi, H. Kubo, J. Kushida, A. Lamastra, A. La Barbera, F. Leone, E. Lindfors, Lena Linhoff, S. Lombardi, F. Longo, R. López-Coto, Marcos López, 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. Martı́nez, Alvaro Mas-Aguilar, D. Mazin, Stefano Menchiari, S. Mender, S. Mičanović, Davide Miceli, Tjark Miener, J. M. Miranda, R. Mirzoyan, E. Molina, H. A. Mondal, A. Moralejo, Daniel Morcuende, V. Moreno, Takeshi Nakamori, C. Nanci, Lara Nava, V. Neustroev, M. Nievas Rosillo, Cosimo Nigro, K. Nilsson, K. Nishijima, T. Njoh Ekoume, K. Noda, S. Nozaki, Yoshiki Ohtani, Tomohiko Oka, Jorge Otero-Santos, S. Paiano, M. Palatiello, D. Paneque, R. Paoletti, J. M. Paredes, Lovro Pavletić, M. Persic, Marine Pihet, Franjo Podobnik, P. G. Prada Moroni, E. Prandini, G. Principe, Chaitanya Priyadarshi, Ivica Puljak, W. Rhode, M. Ribó, J. Rico, Chiara Righi, A. Rugliancich, N. Sahakyan, T. Saito, S. Sakurai, K. Satalecka, Francesco Gabriele Saturni, Bernd Schleicher, K. Schmidt, Felix Schmuckermaier, J. Schubert, T. Schweizer, J. Sitarek, Vitalii Sliusar, D. Sobczyńska, Alessia Spolon, A. Stamerra, Jelena Strišković, D. Strom, M. Strzys, Y. Suda, T. Surić, Mitsunari Takahashi, Ryuji Takeishi, F. Tavecchio, P. Temnikov, K. Terauchi, T. Terzić, M. Teshima, Luca Tosti, Stefano Truzzi, Antonio Tutone, Santiago Ubach, Juliane van Scherpenberg, M. Vázquez Acosta, Sofia Ventura, V. Verguilov, Ilaria Viale, C. Vigorito, V. Vitale, Ievgen Vovk, R. Walter, Martin Will, Carolin Wunderlich, Tokonatsu Yamamoto, Darko Zarić, Nagisa Hiroshima, Kazunori Kohri,
Tópico(s)Particle physics theoretical and experimental studies
ResumoLinelike 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.Received 10 June 2022Revised 2 November 2022Accepted 15 December 2022DOI:https://doi.org/10.1103/PhysRevLett.130.061002© 2023 American Physical SocietyPhysics Subject Headings (PhySH)Research AreasDark matterGamma ray astronomyParticle dark matterPhysical SystemsMilky WayTechniquesCosmic ray & astroparticle detectorsCosmic rays & astroparticlesElectromagnetic radiation astronomyTelescopesGravitation, Cosmology & Astrophysics
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