Search for Dark Matter Annihilation Signals in the H.E.S.S. Inner Galaxy Survey

作     者：H. Abdalla F. Aharonian F. Ait Benkhali E. O. Angüner C. Armand H. Ashkar M. Backes V. Baghmanyan V. Barbosa Martins R. Batzofin Y. Becherini D. Berge K. Bernlöhr B. Bi M. Böttcher J. Bolmont M. de Bony de Lavergne R. Brose F. Brun F. Cangemi S. Caroff M. Cerruti T. Chand A. Chen G. Cotter J. Damascene Mbarubucyeye J. Devin A. Djannati-Ataï A. Dmytriiev V. Doroshenko K. Egberts A. Fiasson G. Fichet de Clairfontaine G. Fontaine S. Funk S. Gabici G. Giavitto D. Glawion J. F. Glicenstein M.-H. Grondin J. A. Hinton W. Hofmann T. L. Holch M. Holler D. Horns Zhiqiu Huang M. Jamrozy F. Jankowsky E. Kasai K. Katarzyński U. Katz B. Khélifi W. Kluźniak Nu. Komin K. Kosack D. Kostunin G. Lamanna M. Lemoine-Goumard J.-P. Lenain F. Leuschner T. Lohse A. Luashvili I. Lypova J. Mackey D. Malyshev V. Marandon P. Marchegiani G. Martí-Devesa R. Marx G. Maurin M. Meyer A. Mitchell R. Moderski A. Montanari E. Moulin J. Muller M. de Naurois J. Niemiec A. Priyana Noel S. Ohm L. Olivera-Nieto E. de Ona Wilhelmi M. Ostrowski S. Panny M. Panter R. D. Parsons G. Peron V. Poireau H. Prokoph G. Pühlhofer M. Punch A. Quirrenbach P. Reichherzer A. Reimer O. Reimer M. Renaud F. Rieger G. Rowell B. Rudak H. Rueda Ricarte E. Ruiz-Velasco V. Sahakian H. Salzmann A. Santangelo M. Sasaki F. Schüssler H. M. Schutte U. Schwanke M. Senniappan J. N. S. Shapopi H. Sol A. Specovius S. Spencer Ł. Stawarz C. Stegmann S. Steinmassl C. Steppa T. Takahashi T. Tanaka R. Terrier C. Thorpe-Morgan M. Tluczykont M. Tsirou N. Tsuji Y. Uchiyama C. van Eldik J. Veh J. Vink S. J. Wagner R. White A. Wierzcholska Yu Wun Wong M. Zacharias D. Zargaryan A. A. Zdziarski A. Zech S. J. Zhu S. Zouari N. Żywucka 

作者机构：University of Namibia Department of Physics Private Bag 13301 Windhoek 10005 Namibia Dublin Institute for Advanced Studies 31 Fitzwilliam Place D02 XF86 Dublin 2 Ireland Max-Planck-Institut für Kernphysik P.O. Box 103980 D 69029 Heidelberg Germany High Energy Astrophysics Laboratory RAU 123 Hovsep Emin St Yerevan 0051 Armenia Aix Marseille Université CNRS/IN2P3 CPPM Marseille France Université Savoie Mont Blanc CNRS Laboratoire d’Annecy de Physique des Particules—IN2P3 74000 Annecy France IRFU CEA Université Paris-Saclay F-91191 Gif-sur-Yvette France Centre for Space Research North-West University Potchefstroom 2520 South Africa Instytut Fizyki Jádrowej PAN ulica Radzikowskiego 152 31-342 Kraków Poland DESY D-15738 Zeuthen Germany School of Physics University of the Witwatersrand 1 Jan Smuts Avenue Braamfontein Johannesburg 2050 South Africa Department of Physics and Electrical Engineering Linnaeus University 351 95 Växjö Sweden Institut für Astronomie und Astrophysik Universität Tübingen Sand 1 D 72076 Tübingen Germany Sorbonne Université Université Paris Diderot Sorbonne Paris Cité CNRS/IN2P3 Laboratoire de Physique Nucléaire et de Hautes Energies LPNHE 4 Place Jussieu F-75252 Paris France Université de Paris CNRS Astroparticule et Cosmologie F-75013 Paris France University of Oxford Department of Physics Denys Wilkinson Building Keble Road Oxford OX1 3RH United Kingdom Université Bordeaux CNRS/IN2P3 Centre d’Études Nucléaires de Bordeaux Gradignan 33175 Gradignan France Laboratoire Univers et Théories Observatoire de Paris Université PSL CNRS Université de Paris 92190 Meudon France Institut für Physik und Astronomie Universität Potsdam Karl-Liebknecht-Strasse 24/25 D 14476 Potsdam Germany Laboratoire Leprince-Ringuet École Polytechnique CNRS Institut Polytechnique de Paris F-91128 Palaiseau France Friedrich-Alexander-Universität Erlangen-Nürnberg Erlangen Centre for Astroparticle Physics Erwin-Rommel-Str. 1 D 91058 Erlangen Germany Institut für Astro- und Teilchenphysik Leopold-Franzens-Universität Innsbruck A-6020 Innsbruck Austria Universität Hamburg Institut für Experimentalphysik Luruper Chaussee 149 D 22761 Hamburg Germany Obserwatorium Astronomiczne Uniwersytet Jagielloński ulica Orla 171 30-244 Kraków Poland Landessternwarte Universität Heidelberg Königstuhl D 69117 Heidelberg Germany Institute of Astronomy Faculty of Physics Astronomy and Informatics Nicolaus Copernicus University Grudziadzka 5 87-100 Torun Poland Nicolaus Copernicus Astronomical Center Polish Academy of Sciences ulica Bartycka 18 00-716 Warsaw Poland Institut für Physik Humboldt-Universität zu Berlin Newtonstrasse 15 D 12489 Berlin Germany Laboratoire Univers et Particules de Montpellier Université Montpellier CNRS/IN2P3 CC 72 Place Eugène Bataillon F-34095 Montpellier Cedex 5 France School of Physical Sciences University of Adelaide Adelaide 5005 Australia Yerevan Physics Institute 2 Alikhanian Brothers Street 375036 Yerevan Armenia Kavli Institute for the Physics and Mathematics of the Universe (WPI) The University of Tokyo Institutes for Advanced Study (UTIAS) The University of Tokyo 5-1-5 Kashiwa-no-Ha Kashiwa Chiba 277-8583 Japan Department of Physics Konan University 8-9-1 Okamoto Higashinada Kobe Hyogo 658-8501 Japan RIKEN 2-1 Hirosawa Wako Saitama 351-0198 Japan Department of Physics Rikkyo University 3-34-1 Nishi-Ikebukuro Toshima-ku Tokyo 171-8501 Japan GRAPPA Anton Pannekoek Institute for Astronomy University of Amsterdam Science Park 904 1098 XH Amsterdam Netherlands 

出 版 物：《Physical Review Letters》 (Phys Rev Lett)

年 卷 期：2022年第129卷第11期

页      面：111101-111101页

核心收录：

学科分类：07[理学] 0702[理学-物理学] 

基　　金：French Ministry of Higher Education, Research and Innovation INSU National Commission on Research, Science & Technology of Namibia Alexander von Humboldt-Stiftung, AvH EGI Federation Science and Technology Facilities Council, STFC Australian Research Council, ARC National Research Foundation, NRF Department of Science and Technology, Republic of South Africa, DST Deutsche Forschungsgemeinschaft, DFG Japan Society for the Promotion of Science, KAKEN Universiteit van Amsterdam, UvA Bundesministerium für Bildung und Forschung, BMBF Austrian Science Fund, FWF Knut och Alice Wallenbergs Stiftelse Max-Planck-Gesellschaft, MPG Ministerstwo Edukacji i Nauki, MNiSW, (2021/WK/06) Ministerstwo Edukacji i Nauki, MNiSW Centre National de la Recherche Scientifique, CNRS, (CNRS/IN2P3) Centre National de la Recherche Scientifique, CNRS Commissariat à l'Énergie Atomique et aux Énergies Alternatives, CEA Helmholtz Association National Commission on Research, Science and Technology, NCRST University of Namibia, UNAM Bundesministerium für Bildung, Wissenschaft und Forschung, BMBWF 

主　　题：Gamma ray astronomy Particle dark matter Milky Way Cosmic rays & astroparticles Electromagnetic radiation astronomy 

摘      要：The central region of the Milky Way is one of the foremost locations to look for dark matter (DM) signatures. We report the first results on a search for DM particle annihilation signals using new observations from an unprecedented γ-ray survey of the Galactic Center (GC) region, i.e., the Inner Galaxy Survey, at very high energies (≳100 GeV) performed with the H.E.S.S. array of five ground-based Cherenkov telescopes. No significant γ-ray excess is found in the search region of the 2014–2020 dataset and a profile likelihood ratio analysis is carried out to set exclusion limits on the annihilation cross section ⟨σv⟩. Assuming Einasto and Navarro-Frenk-White (NFW) DM density profiles at the GC, these constraints are the strongest obtained so far in the TeV DM mass range. For the Einasto profile, the constraints reach ⟨σv⟩ values of 3.7×10−26 cm3 s−1 for 1.5 TeV DM mass in the W+W− annihilation channel, and 1.2×10−26 cm3 s−1 for 0.7 TeV DM mass in the τ+τ− annihilation channel. With the H.E.S.S. Inner Galaxy Survey, ground-based γ-ray observations thus probe ⟨σv⟩ values expected from thermal-relic annihilating TeV DM particles.