Constraints on heavy decaying dark matter with current gamma-ray measurements

被引：20

作者：

Chianese, Marco ^{[1
,2
]}

Fiorillo, Damiano F. G. ^{[1
,2
]}

Hajjar, Rasmi ^{[3
,4
]}

Miele, Gennaro ^{[1
,2
,3
]}

Saviano, Ninetta ^{[2
,3
]}

机构：

[1] Univ Napoli Federico II, Dipartimento Fis Ettore Pancini, Complesso Univ Monte S Angelo, I-80126 Naples, Italy

[2] INFN, Sez Napoli, Complesso Univ Monte S Angelo, I-80126 Naples, Italy

[3] Univ Napoli Federico II, Scuola Super Meridionale, Largo San Marcellino 10, I-80138 Naples, Italy

[4] Univ Valencia, CSIC, IFIC Inst Fis Corpuscular, C Catedrat Jose Beltran 2, E-46980 Paterna, Valencia, Spain

来源：

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS | 2021年 / 11期

关键词：

dark matter theory; ultra high energy photons and neutrinos; FLUX;

D O I：

10.1088/1475-7516/2021/11/035

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Among the several strategies for indirect searches of dark matter, a very promising one is to look for the gamma-rays from decaying dark matter. Here we use the most up-to-date upper bounds on the gamma-ray flux from 10(5) to 10(11) GeV, obtained from CASA-MIA, KASCADE, KASCADE-Grande, Pierre Auger Observatory, Telescope Array and EAS-MSU. We obtain global limits on dark matter lifetime in the range of masses in m(DM) = [10(7)-10(15)] GeV. We provide the bounds for a set of decay channels chosen as representatives. The constraints derived here are new and cover a region of the parameter space not yet explored. We compare our results with the projected constraints from future neutrino telescopes, in order to quantify the improvement that will be obtained by the complementary high-energy neutrino searches.

引用

页数：13

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