Constraints on Ultraheavy Dark Matter Properties from Dwarf Spheroidal Galaxies with LHAASO Observations.

Cao, Zhen; Aharonian, F; An, Q; Bai, Y X; Bao, Y W; Bastieri, D; Bi, X J; Bi, Y J; Cai, J T; Cao, Q; Cao, W Y; Cao, Zhe; Chang, J; Chang, J F; Chen, A M; Chen, E S; Chen, Liang; Chen, Lin; Chen, Long; Chen, M J; Chen, M L; Chen, Q H; Chen, S H; Chen, S Z; Chen, T L; Chen, Y; Cheng, N; Cheng, Y D; Cui, M Y; Cui, S W; Cui, X H; Cui, Y D; Dai, B Z; Dai, H L; Dai, Z G; Della Volpe, D; Dong, X Q; Duan, K K; Fan, J H; Fan, Y Z; Fang, J; Fang, K; Feng, C F; Feng, L; Feng, S H; Feng, X T; Feng, Y L; Gabici, S; Gao, B; Gao, C D

Cao, Zhen; Aharonian, F; An, Q; Bai, Y X; Bao, Y W; Bastieri, D; Bi, X J; Bi, Y J; Cai, J T; Cao, Q; Cao, W Y; Cao, Zhe; Chang, J; Chang, J F; Chen, A M; Chen, E S; Chen, Liang; Chen, Lin; Chen, Long; Chen, M J; Chen, M L; Chen, Q H; Chen, S H; Chen, S Z; Chen, T L; Chen, Y; Cheng, N; Cheng, Y D; Cui, M Y; Cui, S W; Cui, X H; Cui, Y D; Dai, B Z; Dai, H L; Dai, Z G; Della Volpe, D; Dong, X Q; Duan, K K; Fan, J H; Fan, Y Z; Fang, J; Fang, K; Feng, C F; Feng, L; Feng, S H; Feng, X T; Feng, Y L; Gabici, S; Gao, B; Gao, C D.

Afiliação

Cao Z; Key Laboratory of Particle Astrophysics and Experimental Physics Division and Computing Center, <a href="https://ror.org/03v8tnc06">Institute of High Energy Physics</a>, <a href="https://ror.org/034t30j35">Chinese Academy of Sciences</a>, 100049 Beijing, China.
Aharonian F; <a href="https://ror.org/05qbk4x57">University of Chinese Academy of Sciences</a>, 100049 Beijing, China.
An Q; <a href="https://ror.org/008td3p62">Tianfu Cosmic Ray Research Center</a>, 610000 Chengdu, Sichuan, China.
Axikegu; Dublin Institute for Advanced Studies, 31 Fitzwilliam Place, 2 Dublin, Ireland.
Bai YX; Max-Planck-Institut for Nuclear Physics, P.O. Box 103980, 69029 Heidelberg, Germany.
Bao YW; State Key Laboratory of Particle Detection and Electronics, China.
Bastieri D; University of Science and Technology of China, 230026 Hefei, Anhui, China.
Bi XJ; School of Physical Science and Technology and School of Information Science and Technology, Southwest Jiaotong University, 610031 Chengdu, Sichuan, China.
Bi YJ; Key Laboratory of Particle Astrophysics and Experimental Physics Division and Computing Center, <a href="https://ror.org/03v8tnc06">Institute of High Energy Physics</a>, <a href="https://ror.org/034t30j35">Chinese Academy of Sciences</a>, 100049 Beijing, China.
Cai JT; <a href="https://ror.org/008td3p62">Tianfu Cosmic Ray Research Center</a>, 610000 Chengdu, Sichuan, China.
Cao Q; School of Astronomy and Space Science, Nanjing University, 210023 Nanjing, Jiangsu, China.
Cao WY; Center for Astrophysics, Guangzhou University, 510006 Guangzhou, Guangdong, China.
Cao Z; Key Laboratory of Particle Astrophysics and Experimental Physics Division and Computing Center, <a href="https://ror.org/03v8tnc06">Institute of High Energy Physics</a>, <a href="https://ror.org/034t30j35">Chinese Academy of Sciences</a>, 100049 Beijing, China.
Chang J; <a href="https://ror.org/05qbk4x57">University of Chinese Academy of Sciences</a>, 100049 Beijing, China.
Chang JF; <a href="https://ror.org/008td3p62">Tianfu Cosmic Ray Research Center</a>, 610000 Chengdu, Sichuan, China.
Chen AM; Key Laboratory of Particle Astrophysics and Experimental Physics Division and Computing Center, <a href="https://ror.org/03v8tnc06">Institute of High Energy Physics</a>, <a href="https://ror.org/034t30j35">Chinese Academy of Sciences</a>, 100049 Beijing, China.
Chen ES; <a href="https://ror.org/008td3p62">Tianfu Cosmic Ray Research Center</a>, 610000 Chengdu, Sichuan, China.
Chen L; Center for Astrophysics, Guangzhou University, 510006 Guangzhou, Guangdong, China.
Chen L; Hebei Normal University, 050024 Shijiazhuang, Hebei, China.
Chen L; University of Science and Technology of China, 230026 Hefei, Anhui, China.
Chen MJ; State Key Laboratory of Particle Detection and Electronics, China.
Chen ML; University of Science and Technology of China, 230026 Hefei, Anhui, China.
Chen QH; Key Laboratory of Dark Matter and Space Astronomy and Key Laboratory of Radio Astronomy, Purple Mountain Observatory, <a href="https://ror.org/034t30j35">Chinese Academy of Sciences</a>, 210023 Nanjing, Jiangsu, China.
Chen SH; Key Laboratory of Particle Astrophysics and Experimental Physics Division and Computing Center, <a href="https://ror.org/03v8tnc06">Institute of High Energy Physics</a>, <a href="https://ror.org/034t30j35">Chinese Academy of Sciences</a>, 100049 Beijing, China.
Chen SZ; <a href="https://ror.org/008td3p62">Tianfu Cosmic Ray Research Center</a>, 610000 Chengdu, Sichuan, China.
Chen TL; State Key Laboratory of Particle Detection and Electronics, China.
Chen Y; Tsung-Dao Lee Institute and School of Physics and Astronomy, Shanghai Jiao Tong University, 200240 Shanghai, China.
Cheng N; Key Laboratory of Particle Astrophysics and Experimental Physics Division and Computing Center, <a href="https://ror.org/03v8tnc06">Institute of High Energy Physics</a>, <a href="https://ror.org/034t30j35">Chinese Academy of Sciences</a>, 100049 Beijing, China.
Cheng YD; <a href="https://ror.org/05qbk4x57">University of Chinese Academy of Sciences</a>, 100049 Beijing, China.
Cui MY; <a href="https://ror.org/008td3p62">Tianfu Cosmic Ray Research Center</a>, 610000 Chengdu, Sichuan, China.
Cui SW; Key Laboratory for Research in Galaxies and Cosmology, Shanghai Astronomical Observatory, <a href="https://ror.org/034t30j35">Chinese Academy of Sciences</a>, 200030 Shanghai, China.
Cui XH; School of Physical Science and Technology and School of Information Science and Technology, Southwest Jiaotong University, 610031 Chengdu, Sichuan, China.
Cui YD; School of Physical Science and Technology and School of Information Science and Technology, Southwest Jiaotong University, 610031 Chengdu, Sichuan, China.
Dai BZ; Key Laboratory of Particle Astrophysics and Experimental Physics Division and Computing Center, <a href="https://ror.org/03v8tnc06">Institute of High Energy Physics</a>, <a href="https://ror.org/034t30j35">Chinese Academy of Sciences</a>, 100049 Beijing, China.
Dai HL; <a href="https://ror.org/008td3p62">Tianfu Cosmic Ray Research Center</a>, 610000 Chengdu, Sichuan, China.
Dai ZG; Key Laboratory of Particle Astrophysics and Experimental Physics Division and Computing Center, <a href="https://ror.org/03v8tnc06">Institute of High Energy Physics</a>, <a href="https://ror.org/034t30j35">Chinese Academy of Sciences</a>, 100049 Beijing, China.
Danzengluobu; <a href="https://ror.org/008td3p62">Tianfu Cosmic Ray Research Center</a>, 610000 Chengdu, Sichuan, China.
Della Volpe D; State Key Laboratory of Particle Detection and Electronics, China.
Dong XQ; School of Physical Science and Technology and School of Information Science and Technology, Southwest Jiaotong University, 610031 Chengdu, Sichuan, China.
Duan KK; Key Laboratory of Particle Astrophysics and Experimental Physics Division and Computing Center, <a href="https://ror.org/03v8tnc06">Institute of High Energy Physics</a>, <a href="https://ror.org/034t30j35">Chinese Academy of Sciences</a>, 100049 Beijing, China.
Fan JH; <a href="https://ror.org/05qbk4x57">University of Chinese Academy of Sciences</a>, 100049 Beijing, China.
Fan YZ; <a href="https://ror.org/008td3p62">Tianfu Cosmic Ray Research Center</a>, 610000 Chengdu, Sichuan, China.
Fang J; Key Laboratory of Particle Astrophysics and Experimental Physics Division and Computing Center, <a href="https://ror.org/03v8tnc06">Institute of High Energy Physics</a>, <a href="https://ror.org/034t30j35">Chinese Academy of Sciences</a>, 100049 Beijing, China.
Fang K; <a href="https://ror.org/008td3p62">Tianfu Cosmic Ray Research Center</a>, 610000 Chengdu, Sichuan, China.
Feng CF; Key Laboratory of Cosmic Rays (Tibet University), Ministry of Education, 850000 Lhasa, Tibet, China.
Feng L; School of Astronomy and Space Science, Nanjing University, 210023 Nanjing, Jiangsu, China.
Feng SH; Key Laboratory of Particle Astrophysics and Experimental Physics Division and Computing Center, <a href="https://ror.org/03v8tnc06">Institute of High Energy Physics</a>, <a href="https://ror.org/034t30j35">Chinese Academy of Sciences</a>, 100049 Beijing, China.
Feng XT; <a href="https://ror.org/008td3p62">Tianfu Cosmic Ray Research Center</a>, 610000 Chengdu, Sichuan, China.
Feng YL; Key Laboratory of Particle Astrophysics and Experimental Physics Division and Computing Center, <a href="https://ror.org/03v8tnc06">Institute of High Energy Physics</a>, <a href="https://ror.org/034t30j35">Chinese Academy of Sciences</a>, 100049 Beijing, China.
Gabici S; <a href="https://ror.org/008td3p62">Tianfu Cosmic Ray Research Center</a>, 610000 Chengdu, Sichuan, China.

Phys Rev Lett ; 133(6): 061001, 2024 Aug 09.

Article em En | MEDLINE | ID: mdl-39178452

ABSTRACT

ABSTRACT

In this Letter we try to search for signals generated by ultraheavy dark matter at the Large High Altitude Air Shower Observatory (LHAASO) data. We look for possible Î³ rays by dark matter annihilation or decay from 16 dwarf spheroidal galaxies in the field of view of the LHAASO. Dwarf spheroidal galaxies are among the most promising targets for indirect detection of dark matter that have low fluxes of astrophysical Î³-ray background while having large amount of dark matter. By analyzing more than 700 days of observational data at LHAASO, no significant dark matter signal from 1 TeV to 1 EeV is detected. Accordingly we derive the most stringent constraints on the ultraheavy dark matter annihilation cross section up to EeV. The constraints on the lifetime of dark matter in decay mode are also derived.

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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Phys Rev Lett Ano de publicação: 2024 Tipo de documento: Article

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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Phys Rev Lett Ano de publicação: 2024 Tipo de documento: Article