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.

Abusleme, A., Adam, T., Ahmad, S., Ahmed, R., Aiello, S., Akram, M., et al. (2023). JUNO sensitivity to the annihilation of MeV dark matter in the galactic halo. JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS, 2023(9) [10.1088/1475-7516/2023/09/001].

JUNO sensitivity to the annihilation of MeV dark matter in the galactic halo

Barresi A.;Chiesa D.;Nastasi M.;Previtali E.;Sisti M.;
2023

Abstract

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.
Articolo in rivista - Articolo scientifico
neutrino astronomy; neutrino detectors; neutrino experiments
English
2023
2023
9
001
none
Abusleme, A., Adam, T., Ahmad, S., Ahmed, R., Aiello, S., Akram, M., et al. (2023). JUNO sensitivity to the annihilation of MeV dark matter in the galactic halo. JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS, 2023(9) [10.1088/1475-7516/2023/09/001].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/455876
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