18th International Symposium on Particles Strings and Cosmology | |
Cosmic_ray and gamma_ray constraints on dark matter stability | |
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 |
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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.
【 预 览 】
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Cosmic_ray and gamma_ray constraints on dark matter stability | 713KB | download |