Electrosphere of macroscopic 'quark nuclei': A source for diffuse MeV emissions from dark matter
- Institute for Nuclear Theory, University of Washington, Box 351550, Seattle, Washington, 98195 (United States)
Using a Thomas-Fermi model, we calculate the structure of the electrosphere of the quark antimatter nuggets postulated to comprise much of the dark matter. This provides a single self-consistent density profile from ultrarelativistic densities to the nonrelativistic Boltzmann regime that we use to present microscopically justified calculations of several properties of the nuggets, including their net charge, and the ratio of MeV to 511 keV emissions from electron annihilation. We find that the calculated parameters agree with previous phenomenological estimates based on the observational supposition that the nuggets are a source of several unexplained diffuse emissions from the Galaxy. As no phenomenological parameters are required to describe these observations, the calculation provides another nontrivial verification of the dark-matter proposal. The structure of the electrosphere is quite general and will also be valid at the surface of strange-quark stars, should they exist.
- OSTI ID:
- 21426364
- Journal Information:
- Physical Review. D, Particles Fields, Vol. 82, Issue 8; Other Information: DOI: 10.1103/PhysRevD.82.083510; (c) 2010 American Institute of Physics; ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANNIHILATION
ANTIMATTER
COMPUTERIZED SIMULATION
DENSITY
ELECTRONS
EMISSION
KEV RANGE 100-1000
NONLUMINOUS MATTER
NUCLEI
RELATIVISTIC RANGE
S QUARKS
STARS
SURFACES
THOMAS-FERMI MODEL
ATOMIC MODELS
ELEMENTARY PARTICLES
ENERGY RANGE
FERMIONS
INTERACTIONS
KEV RANGE
LEPTONS
MATHEMATICAL MODELS
MATTER
PARTICLE INTERACTIONS
PHYSICAL PROPERTIES
QUARKS
SIMULATION
STRANGE PARTICLES