High-energy cosmic antiparticle excess vs. isotropic gamma-ray background problem in decaying dark matter Universe

International Conference on Particle Physics and Astrophysics

Alekseev, V.V.^1 ; Belotsky, K.M.^2 ; Bogomolov, Yu V^1 ; Budaev, R.I.^2 ; Dunaeva, O.A.^1 ; Kirillov, A.A.^1,2 ; Kuznetsov, A.V.^1 ; Laletin, M.N.^2 ; Lukyanov, A.D.^1 ; Malakhov, V.V.^2 ; Mayorov, A.G.^1,2 ; Mayorova, M.A.^2 ; Mosichkin, A.F.^1 ; Okrugin, A.A.^1 ; Rodenko, S.A.^2 ; Shitova, A.M.^1

Yaroslavl State P.G. Demidov University, Sovietskaya st. 14, Yaroslavl

150000, Russia^1

National Research Nuclear University MEPhI (Moscow Engineering Physics Institute), Kashirskoe highway 31, Moscow

115409, Russia^2

关键词: Dark matter;    Gamma-ray background;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/675/1/012023/pdf
DOI  :  10.1088/1742-6596/675/1/012023

来源: IOP

【 摘 要 】

We are going to show that any conventional decaying dark matter model, providing an explanation of cosmic antiparticle excess observed by PAMELA and AMS-02, inevitably faces the contradiction with isotropic diffuse gamma-ray background, measured by FERMI/LAT.