Journal
ASTROPARTICLE PHYSICS
Volume 134, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.astropartphys.2021.102646
Keywords
Neutrino telescopes; Muons; Cosmic rays
Funding
- Spanish Ministry of Science, Innovation and Universities [PID2019-107844GB-C21/AEI/10.13039/501100011033]
- Junta de Andalucia, Spain [FQM 101, SOMM17/6104/UGR, P18-FR-1962, P18-FR-5057]
- Programa Operativo de Empleo Juvenil (Junta de Andalucia)
- program Es-tancias Postdoctorales en el Extranjero 2019-2020 of CONACYT, Mexico
- Universidad de Granada/CBUA
- Catedra Marcos Moshinsky (Fundacion Marcos Moshinsky)
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This study investigates the possibility of detecting neutrino interactions in down-going atmospheric events at km3 telescopes and proposes a simple algorithm to separate these events. The research shows that the neutrino signal always appears together with muon bundles.
The atmospheric neutrino flux includes a component from the prompt decay of charmed hadrons that becomes significant only at E >= 10 TeV. At these energies, however, the diffuse flux of cosmic neutrinos discovered by IceCube seems to be larger than the atmospheric one. Here we study the possibility to detect a neutrino interaction in down-going atmospheric events at km3 telescopes. The neutrino signal will always appear together with a muon bundle that reveals its atmospheric origin and, generically, it implies an increase in the detector activity with the slant depth. We propose a simple algorithm that could separate these events from regular muon bundles.
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