Restoration of parameters of high-energy cascades in Cherenkov water calorimeter with a dense array of quasispherical modules

A problem concerning the restoration of the parameters of a cascade shower with an unknown axis originating by muons in a Cherenkov water calorimeter is considered. A method for estimating the direction and geometric position of the cascade’s axis, which is based on the analysis of responses of quas...

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Bibliographic Details
Published in:Physics of atomic nuclei 2015-12, Vol.78 (13), p.1511-1516
Main Authors: Khomyakov, V. A., Bogdanov, A. G., Kindin, V. V., Kokoulin, R. P., Petrukhin, A. A., Khokhlov, S. S., Shutenko, V. V., Yashin, I. I.
Format: Article
Language:English
Subjects:
Analysis
CASCADE SHOWERS
CHERENKOV COUNTERS
COORDINATES
Cosmic Rays and Astrophysics
Detectors
ENERGY SPECTRA
INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
MUONS
Particle and Nuclear Physics
PARTICLE TRACKS
Physics
Physics and Astronomy
SHOWER COUNTERS
WATER
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Summary:A problem concerning the restoration of the parameters of a cascade shower with an unknown axis originating by muons in a Cherenkov water calorimeter is considered. A method for estimating the direction and geometric position of the cascade’s axis, which is based on the analysis of responses of quasispherical modules, and the criteria of selection of the events with cascades among the events with a large energy liberation are proposed. The method and the criteria are tested on events with cascades generated by near-horizontal muons of high energies detected by a DECOR coordinate-track detector. The preliminary results of measurements of the energy spectrum of cascade showers are presented.
ISSN:1063-7788
1562-692X
DOI:10.1134/S1063778815130177