Lopes, Ilidio and Silk, Joseph (2012), "SOLAR NEUTRINO PHYSICS: SENSITIVITY TO LIGHT DARK MATTER PARTICLES", ASTROPHYSICAL JOURNAL, 752, 2.
Abstract: Neutrinos are produced in several neutrino nuclear reactions of the
proton-proton chain and carbon-nitrogen-oxygen cycle that take place at
different radii of the Sun's core. Hence, measurements of solar neutrino
fluxes provide a precise determination of the local temperature. The
accumulation of non-annihilating light dark matter particles (with
masses between 5 GeV and 16 GeV) in the Sun produces a change in the
local solar structure, namely, a decrease in the central temperature of
a few percent. This variation depends on the properties of the dark
matter particles, such as the mass of the particle and its
spin-independent scattering cross-section on baryon-nuclei,
specifically, the scattering with helium, oxygen, and nitrogen among
other heavy elements. This temperature effect can be measured in almost
all solar neutrino fluxes. In particular, by comparing the neutrino
fluxes generated by stellar models with current observations, namely B-8
neutrino fluxes, we find that non-annihilating dark matter particles
with a mass smaller than 10 GeV and a spin-independent scattering
cross-section with heavy baryon-nuclei larger than 3 x 10(-37) cm(-2)
produce a variation in the B-8 neutrino fluxes that would be in conflict
with current measurements.
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