Event-by-event study of CR composition with the SPHERE experiment using the 2013 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.

8 pages, 15 figures

References in corpus (1)

• Results on the primary CR spectrum and composition reconstructed with the SPHERE-2 detector

Cited by in corpus (4)

• The SPHERE-2 detector for observation of extensive air showers in 1 PeV -- 1 EeV energy range
• Spatial and temporal structure of EAS reflected Cherenkov light signal
• EAS observation conditions in the SPHERE-2 balloon experiment
• Investigation of energy spectrum and chemical composition of primary cosmic rays in 1-100 PeV energy range with a UAV-borne installation