Search for Dark Matter Annihilation Signals in the H.E.S.S. Inner Galaxy Survey.
Search for Dark Matter Annihilation Signals in the H.E.S.S. Inner Galaxy Survey.
复制标题
在 H.E.S.S. 中寻找暗物质湮灭信号
DOI:
10.1103/physrevlett.129.111101
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发表时间:
2022
影响因子:
8.6
通讯作者:
Abdalla H
中科院分区:
文献类型:
--
作者:
Abdalla H
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-ray survey of the Galactic Center (GC) region, i.e., the Inner Galaxy Survey, at very high energies () performed with the H.E.S.S. array of five ground-based Cherenkov telescopes. No significant-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. 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 reachvalues offor 1.5 TeV DM mass in theannihilation channel, andfor 0.7 TeV DM mass in theannihilation channel. With the H.E.S.S. Inner Galaxy Survey, ground-based-ray observations thus probevalues expected from thermal-relic annihilating TeV DM particles.
影响因子:
6.4
作者:
Abeysekara, A.U.;Albert, A.;Alfaro, R.;Alvarez, C.;Arceo, R.;Arteaga-Velázquez, J.C.;Rojas, D. Avila;Solares, H.A. Ayala;Becerril, A.;Belmont-Moreno, E.
通讯作者:
Belmont-Moreno, E.
DOI:
10.1088/1361-6471/ab2ea5
发表时间:
2019-03
期刊:
Journal of Physics G: Nuclear and Particle Physics
影响因子:
--
作者:
M. Schumann
通讯作者:
M. Schumann