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Title: | Large Energy Singles at JUNO from Atmospheric Neutrinos and Dark Matter |
Authors: | Chauhan, Bhavesh |
Keywords: | Physics High Energy Physics - Phenomenology (hep-ph) JUNO Large Energy Singles |
Issue Date: | Nov-2021 |
Publisher: | American Physical Society |
Abstract: | Large liquid scintillator detectors, such as JUNO, present a new opportunity to study neutral current events from the low-energy end of the atmospheric neutrinos, and possible new physics signals due to light dark matter. We carefully study the possibility of detecting ``Large Energy Singles'' (LES), i.e., events with visible scintillation energy >15\,MeV, but no other associated tags. For an effective exposure of 20 kton-yr and considering only Standard Model physics, we expect the LES sample to contain ∼40 events from scattering on free protons and ∼108 events from interaction with carbon, from neutral-current interactions of atmospheric neutrinos. Backgrounds, largely due to β-decays of cosmogenic isotopes, are shown to be significant only below 15 MeV visible energy. The LES sample at JUNO can competitively probe a variety of new physics scenarios, such as boosted dark matter and annihilation of galactic dark matter to sterile neutrinos. |
URI: | https://link.aps.org/pdf/10.1103/PhysRevD.105.095035 http://dspace.bits-pilani.ac.in:8080/jspui/xmlui/handle/123456789/15284 |
Appears in Collections: | Department of Physics |
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