JUNO sensitivity to the annihilation of MeV dark matter in the galactic halo
Idioma
en
Article de revue
Este ítem está publicado en
JCAP. 2023, vol. 09, p. 001
Resumen en inglés
We discuss JUNO sensitivity to the annihilation of MeV dark matter in the galactic halo via detecting inverse beta decay reactions of electron anti-neutrinos resulting from the annihilation. We study possible backgrounds ...Leer más >
We discuss JUNO sensitivity to the annihilation of MeV dark matter in the galactic halo via detecting inverse beta decay reactions of electron anti-neutrinos resulting from the annihilation. We study possible backgrounds to the signature, including the reactor neutrinos, diffuse supernova neutrino background, charged- and neutral-current interactions of atmospheric neutrinos, backgrounds from muon-induced fast neutrons and cosmogenic isotopes. A fiducial volume cut, as well as the pulse shape discrimination and the muon veto are applied to suppress the above backgrounds. It is shown that JUNO sensitivity to the thermally averaged dark matter annihilation rate in 10 years of exposure would be significantly better than the present-day best limit set by Super-Kamiokande and would be comparable to that expected by Hyper-Kamiokande.< Leer menos
Palabras clave en inglés
galaxy, halo
dark matter, annihilation
neutrino, atmosphere
neutrino, supernova
neutrino, background
neutrino, nuclear reactor
JUNO
sensitivity
muon
semileptonic decay
electron
antineutrino
KAMIOKANDE
signature
neutral current
Orígen
Importado de HalCentros de investigación
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