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Cascade showers initiated by muons in the Cherenkov water detector NEVOD

Jul 30, 2015, 3:30 PM
1h
Amazon Foyer (World Forum)

Amazon Foyer

World Forum

Churchillplein 10 2517 JW Den Haag The Netherlands
Board: 228
Poster contribution CR-EX Poster 1 CR

Speaker

Prof. Rostislav Kokoulin (National Research Nuclear University MEPhI (Moscow Engineering Physics Institute))

Description

Measurements of the energy spectra of cascade showers generated due to interactions of penetrating cosmic ray particles in massive water/ice detectors is one of the main methods of the study of the energy characteristics of the fluxes of muons and neutrinos. In the present paper, results of investigations of cascades initiated by inclined muons in the Cherenkov water detector NEVOD with a volume of 2000 m^3, located at the ground surface and equipped with a spatial lattice of 91 quasi-spherical modules (QSMs), detecting Cherenkov light from any direction with nearly equal efficiency, are discussed. A brief description of the setup features is given. The approaches to the reconstruction of energy and spatial parameters of the showers registered in a dense lattice of QSMs, and questions of the absolute calibration of the QSM response are considered. Preliminary results of the measurements of the energy spectrum of the cascades in the energy range 30 GeV – 10 TeV based on the data accumulated in 2013 – 2015 experimental series (about 11,000 live observation time) and their comparison with expectation for some models of the muon energy spectrum are presented.
Registration number following "ICRC2015-I/" 46
Collaboration -- not specified --

Primary author

Prof. Rostislav Kokoulin (National Research Nuclear University MEPhI (Moscow Engineering Physics Institute))

Co-authors

Dr Aleksey Bogdanov (National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)) Prof. Anatoly Petrukhin (National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)) Mr Dmitry Chernov (National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)) Dr Dmitry Gromushkin (National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)) Mr Egor Zadeba (National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)) Mrs Ekaterina Kovylyaeva (National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)) Dr Giampaolo Mannocchi (Istituto di Fisica dello Spazio Interplanetario, Torino) Dr Giancarlo Trinchero (Istituto di Fisica dello Spazio Interplanetario, Torino) Prof. Igor Yashin (National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)) Mr Ivan Shulzhenko (National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)) Dr Konstantin Kompaniets (National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)) Mr Lev Dushkin (National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)) Mr Mikhail Amelchakov (National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)) Dr Natalia Barbashina (National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)) Mr Nikita Kamlev (National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)) Prof. Oscar Saavedra (Universita di Torino) Dr Semen Khokhlov (National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)) Mr V.V. Ovchinnikov (National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)) Mr Vasily Khomyakov (National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)) Ms Veronika Kruglikova (National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)) Mr Victor Kindin (National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)) Dr Victor Shutenko (National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)) Mr Vitaly Burtsev (National Research Nuclear University MEPhI (Moscow Engineering Physics Institute))

Presentation materials