Possibility of measurement of cosmic ray electron spectrum up to 100 TeV with two-layer water Cherenkov detector array
| Autor: | Neronov, Andrii, Semikoz, Dmitri |
|---|---|
| Přispěvatelé: | AstroParticule et Cosmologie (APC (UMR_7164)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP) |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
High Energy Astrophysical Phenomena (astro-ph.HE)
positron: spectrum showers: atmosphere Cherenkov counter: water air Physics::Instrumentation and Detectors Astrophysics::High Energy Astrophysical Phenomena High Energy Physics::Phenomenology electron: cosmic radiation FOS: Physical sciences electron: spectrum background: hadronic High Energy Physics - Phenomenology High Energy Physics - Phenomenology (hep-ph) efficiency muon [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph] TeV High Energy Physics::Experiment [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph] Astrophysics - High Energy Astrophysical Phenomena |
| Popis: | Measurements of cosmic ray electron+positron spectrum above 10 TeV with ground-based experiments is challenging because of the difficulty of rejection of hadronic extensive air shower background. We study the efficiency of rejection of the hadronic background with water Cherenkov detector array supplemented by muon detection layer. We show that addition of a continuous muon detection layer to the experimental setup allows to achieve a ~ 1e-5 rejection factor for hadronic background at 10 TeV and enables measurement of electron spectrum in 10-100 TeV energy range. We show that measurements of electron spectrum in this energy range do not require a high-altitude experiment and can be done with a sea-level detector. 5 pages, 5 figures |
| Databáze: | OpenAIRE |
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