Cosmic_ray and gamma_ray constraints on dark matter stability

18th International Symposium on Particles Strings and Cosmology

Tran, David^1

School of Physics and Astronomy, University of Minnesota, 116 Church Street SE, Minneapolis, MN 55455, United States^1

关键词: Charged leptons;    Dark matter particles;    Gamma-ray line;    Gamma-ray observations;    General model;    Higher order effects;    Lifetime parameters;    Quantum levels;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/485/1/012034/pdf
DOI  :  10.1088/1742-6596/485/1/012034

来源: IOP

【 摘 要 】

We examine different constraints on dark matter stability from cosmic-ray and gamma-ray observations and their complementarity through higher-order effects. Two-body and three-body decays of dark matter particles into charged leptons and quarks generically induce decays into monochromatic photons at the quantum level, giving rise to distinct signatures. We also present a general model-independent analysis of hadronic constraints in the mass-lifetime parameter space and compare those constraints to current and projected limits on gamma-ray lines. Furthermore, we discuss how the production of monochromatic photons can be enhanced by kinematic effects, potentially giving rise to observable lines in the gamma-ray sky.