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- Title
Estimation of the Density of the Self-Interacting Dark-Matter Component within a Clump with Allowance for Recombination.
- Authors
Nazarova, N. O.; Belotsky, K. M.
- Abstract
Themodel of dark matter featuring a component in the form of free particles and antiparticles (a, a) possessing self-interaction of the Coulomb type is considered. Darkmattermay form small-scale clumps where the annihilation of particles a and a is enhanced. This annihilation may lead to observable effects (in cosmic rays, for example) and/or to the destruction of these clumps. However, there is an ambiguity in describing the annihilation (via recombination) of very slow particles, whichmay include a and a in clumps. The effect of annihilation (in terms of the residual number of free particles a and a in clumps) is estimated within two approaches (simplified quantum-mechanical and classical) at chosen parameter values.
- Subjects
DARK matter; INTERSTELLAR medium; MISSING mass problem (Astronomy); WEAKLY interacting massive particles; PHYSICAL cosmology
- Publication
Physics of Atomic Nuclei, 2017, Vol 80, Issue 6, p1177
- ISSN
1063-7788
- Publication type
Article
- DOI
10.1134/S1063778817060151