期刊
PHYSICAL REVIEW LETTERS
卷 114, 期 8, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.114.081301
关键词
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资金
- German Ministry of Education and Research (BMBF)
- Max Planck Society
- French Ministry of Research
- CNRS-IN2P3
- Astroparticle Interdisciplinary Programme of the CNRS
- United Kingdom Particle Physics and Astronomy Research Council (PPARC)
- IPNP of the Charles University
- South African Department of Science and Technology
- National Research Foundation
- University of Namibia
- European Community [ERC-StG-259391]
- Science and Technology Facilities Council [PP/E001319/1, ST/L00075X/1] Funding Source: researchfish
- STFC [ST/L00075X/1, PP/E001319/1] Funding Source: UKRI
An annihilation signal of dark matter is searched for from the central region of the Milky Way. Data acquired in dedicated on-off observations of the Galactic center region with H.E.S.S. are analyzed for this purpose. No significant signal is found in a total of similar to 9 h of on-off observations. Upper limits on the velocity averaged cross section, , for the annihilation of dark matter particles with masses in the range of similar to 300 GeV to similar to 10 TeV are derived. In contrast to previous constraints derived from observations of the Galactic center region, the constraints that are derived here apply also under the assumption of a central core of constant dark matter density around the center of the Galaxy. Values of that are larger than 3 x 10(-24) cm(3)/s are excluded for dark matter particles with masses between similar to 1 and similar to 4 TeV at 95% C.L. if the radius of the central dark matter density core does not exceed 500 pc. This is the strongest constraint that is derived on for annihilating TeV mass dark matter without the assumption of a centrally cusped dark matter density distribution in the search region.
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