JUNO sensitivity to the annihilation of MeV dark matter in the galactic halo
Langue
en
Article de revue
Ce document a été publié dans
JCAP. 2023, vol. 09, p. 001
Résumé en anglais
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 ...Lire la suite >
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.< Réduire
Mots clés en anglais
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
Origine
Importé de halUnités de recherche
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