Event-by-event study of CR composition with the SPHERE experiment using the 2013 data
R.A. Antonov, T.V. Aulova, E.A. Bonvech, D.V. Chernov, T.A. Dzhatdoev,, Mich. Finger, Mir. Finger, V.I. Galkin, D.A. Podgrudkov, T.M. Roganova
TL;DR
This paper analyzes cosmic ray composition above 5 PeV using Cherenkov light reflection data from the SPHERE experiment, proposing methods to enhance elemental separation accuracy.
Contribution
It introduces an event-by-event analysis technique for CR composition using reflected Cherenkov light and explores multidimensional criteria for better elemental group separation.
Findings
Reconstructed CR light component fraction above 5 PeV.
Demonstrated potential for improved elemental separation.
Utilized 2013 SPHERE experiment data.
Abstract
We present an event-by-event study of cosmic ray (CR) composition with the reflected Cherenkov light method. The fraction of CR light component above 5 PeV was reconstructed using the 2013 run data of the SPHERE experiment which observed optical Vavilov-Cherenkov radiation of extensive air showers, reflected from snow surface of Lake Baikal. Additionally, we discuss a possibility to improve the elemental groups separability by means of multidimensional criteria.
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