JUNO探測器對來自太陽暗質湮滅所產生之MeV微中子流之靈敏度

Abstract

We study the MeV neutrino flux resulting from dark matter annihilation into light quarks \chi\chi -> q \bar q in the Sun where q = u, d and s. Such neutrinos are produced from the decays of stopped pi and K mesons. We show that the signal neutrino flux is able to overcome the huge atmospheric background due to the large multiplicity of aforementioned pi and K mesons. We discuss the feasibility of detecting such neutrinos by JUNO detector and the resulting constraints on dark matter interaction cross-sections.

We study the MeV neutrino flux resulting from dark matter annihilation into light quarks \chi\chi -> q \bar q in the Sun where q = u, d and s. Such neutrinos are produced from the decays of stopped pi and K mesons. We show that the signal neutrino flux is able to overcome the huge atmospheric background due to the large multiplicity of aforementioned pi and K mesons. We discuss the feasibility of detecting such neutrinos by JUNO detector and the resulting constraints on dark matter interaction cross-sections.