Energy spectrum of cascade showers generated by cosmic ray muons in water
R.P. Kokoulin, N.S. Barbashina, A.G. Bogdanov, V.D. Burtsev, D.V., Chernov, S.S. Khokhlov, V.A. Khomyakov, V.V. Kindin, K.G. Kompaniets, A.A., Petrukhin, V.V. Shutenko, I.I. Yashin
TL;DR
This paper measures the Cherenkov radiation distribution from muon-induced cascade showers in water, improving analysis techniques and presenting preliminary energy spectrum results for high-energy cosmic ray muons.
Contribution
It introduces improved methods for analyzing cascade showers with unknown axes using Cherenkov water calorimeter data and provides initial energy spectrum measurements.
Findings
Distribution of Cherenkov radiation measured
Enhanced techniques for event selection and reconstruction
Preliminary energy spectrum of cascade showers in 100 GeV - 20 TeV range
Abstract
The spatial distribution of Cherenkov radiation from cascade showers generated by muons in water has been measured with Cherenkov water calorimeter (CWC) NEVOD. This result allowed to improve the techniques of treating cascade showers with unknown axes by means of CWC response analysis. The techniques of selecting the events with high energy cascade showers and reconstructing their parameters are discussed. Preliminary results of measurements of the spectrum of cascade showers in the energy range 100 GeV - 20 TeV generated by cosmic ray muons at large zenith angles and their comparison with expectation are presented.
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Taxonomy
TopicsAstrophysics and Cosmic Phenomena · Particle physics theoretical and experimental studies · Dark Matter and Cosmic Phenomena