Cherenkov light from Horizontal Air Shower
K. Kr\'olik, A. Djakonow, Z. Plebaniak, M. Przybylak, J. Szabelski, L., Wiencke (for the JEM-EUSO Collaboration)

TL;DR
This study explores the potential for detecting Cherenkov light from horizontal air showers at stratospheric balloon altitude, focusing on muon-induced signals within a specific energy range and their implications for cosmic ray observations.
Contribution
It presents simulation results indicating the feasibility of measuring Cherenkov light from horizontal air showers using balloon-borne detectors, highlighting muons as the primary detectable component.
Findings
Cherenkov light from muons can be detected within 300 km from the detector.
Detection is feasible for proton-induced EAS with energies between 10^17 and 10^18 eV.
Atmospheric scattering reduces Cherenkov light from the electron component.
Abstract
We present results of horizontal EAS simulations focused on the opportunity of measuring Cherenkov light from air showers at stratospheric balloon altitude (eg. EUSO-SPB2). For a 1 m2 UV light detector at a 38 km altitude, the largest horizontal distance to the edge of the Earth atmosphere is about 1000 km which represents a depth of 10000 g/cm2 of atmosphere. The Cherenkov light produced by the EAS electron component would be scattered in atmosphere on its way to the detector, and would not contribute to detected light. The most promising scenario relies on the detection of light emitted within about 300 km from the detector by EAS muons with energies above 100 GeV (required to produce Cherenkov light at high altitudes and for muons to survive over a large distance). Within this scenario we might expect to measure Cherenkov light from proton induced EAS of energy between 1e17 and 1e18…
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Taxonomy
TopicsAstrophysics and Cosmic Phenomena · Dark Matter and Cosmic Phenomena · Neutrino Physics Research
