Weakly interacting massive particle distribution in and evaporation from the sun
1987; IOP Publishing; Volume: 321; Linguagem: Inglês
10.1086/165652
ISSN1538-4357
Autores Tópico(s)Cosmology and Gravitation Theories
Resumoview Abstract Citations (217) References (8) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Weakly Interacting Massive Particle Distribution in and Evaporation from the Sun Gould, Andrew Abstract The paper analyzes the evaporation of weakly interacting massive particles (WIMPs) from the sun, both analytically and numerically. First, an analytic approximation is made by defining an appropriate truncation of a Maxwell-Boltzmann distribution for the WIMPs and calculating the exact evaporation rate from this distribution due to interaction with a truly thermal distribution of nuclei. Then, the actual (nonthermal) distribution of Dirac neutrino WIMPs in the sun is calculated numerically for WIMPs of mass 1-7 GeV. Evaporation from the actual and thermal distributions is compared. It is found that the evaporation mass for a solar lifetime is 3.7 GeV, and for an 'annihilation lifetime', 2.9 GeV. These are about 8 percent lower than the most well-reasoned previous estimate. Publication: The Astrophysical Journal Pub Date: October 1987 DOI: 10.1086/165652 Bibcode: 1987ApJ...321..560G Keywords: Elementary Particle Interactions; Particle Density (Concentration); Solar Corpuscular Radiation; Solar Neutrinos; Weak Interactions (Field Theory); Mathematical Models; Maxwell-Boltzmann Density Function; Solar Physics; ELEMENTARY PARTICLES; NEUTRINOS; SUN: INTERIOR full text sources ADS |
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