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Aynutdinov, V. M.; Киндин, В. В.; Компаниец, К. Г.; Петрухин, А. А.; Tkachenko, P. V.; Шутенко, В. В.; Yashin, I. I.

doi:10.1023/a:1001779122430

Cited by 71 publications

(23 citation statements)

References 1 publication

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“…The detecting system of the Cherenkov water detector (CWD) NEVOD [8,9] with a volume 2000 m 3 is a spatial lattice of quasi-spherical optical modules (QSMs). Each QSM consists of 6 low-noise 12-dynode photomultipliers FEU-200 with flat 15 cm diameter photocathodes directed along rectangular coordinate axes.…”

Section: Methodsmentioning

confidence: 99%

Study of the energy deposit of muon bundles in the NEVOD detector

Bogdanov

Dushkin

Хохлов

et al. 2015

EPJ Web of Conferences

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Abstract. In several cosmic ray experiments, an excess of multi-muon events in comparison with calculations performed in frame of the widely used hadron interaction models was found. In order to solve this puzzle, investigations of muon energy characteristics in EAS are required. An experiment on the measurement of the energy deposit of muon bundles in water has been started with the NEVOD-DECOR experimental complex. The results of the analysis of the first experimental data are discussed. It has been found that the average specific energy deposit in the Cherenkov calorimeter appreciably increases with zenith angle, thus reflecting the increase of the mean muon energy in the bundles. A possible evidence for an increase of the energy deposit at primary energies above 10 17 eV is observed.

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Section: Methodsmentioning

confidence: 99%

Study of the energy deposit of muon bundles in the NEVOD detector

Bogdanov

Dushkin

Хохлов

et al. 2015

EPJ Web of Conferences

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“…A general layout of the setup is shown in Fig.2. The coordinate detector DECOR [1,2] represents a modular multi-layer system of plastic streamer tube chambers with resistive cathode coating, arranged around the Cherenkov water calorimeter NEVOD [6] with sizes 9 × 9 × 26 m 3 and a spatial lattice of quasispherical optical modules. The side part of DECOR includes eight 8-layer assemblies (supermodules, SM) of chambers with the total sensitive area 70 m 2 .…”

Section: Methodsmentioning

confidence: 99%

Ultra-high energy cosmic ray investigations by means of EAS muon density measurements

Barbashina

Bogdanov

Чернов

et al. 2007

Nuclear Physics B - Proceedings Supplements

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A new approach to investigations of ultra-high energy cosmic rays based on the ground-level measurements of the spectra of local density of EAS muons at various zenith angles is considered. Basic features of the local muon density phenomenology are illustrated using a simple semi-analytical model. It is shown that muon density spectra are sensitive to the spectrum slope, primary composition, and to the features of hadronic interaction. New experimental data on muon bundles at zenith angles from 30° to horizon obtained with the coordinate detector DECOR are compared with CORSIKAbased simulations. It is found that measurements of muon density spectra in inclined EAS give possibility to study characteristics of primary cosmic ray flux in a very wide energy range from 10 15 to 10 19 eV.

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“…The Cherenkov water detector (CWD) NEVOD [8] has an inner volume of 9 × 9 × 26 cubic meters and is equipped with a spatial lattice of quasi-spherical measuring modules (QSM). Each QSM includes six FEU-200 photomultipliers with flat 15 cm diameter cathodes directed along the axes of the orthogonal coordinate system.…”

Section: Experimental Datamentioning

confidence: 99%

“…An experiment to investigate the energy deposit of inclined muon bundles was started at the experimental complex NEVOD in 2012. The complex includes a Cherenkov water calorimeter [8,9] and a coordinate-tracking detector [10] to ensure a reliable identification of multi-muon events. Detection of muon bundles in a wide range of multiplicities and zenith angles provides a possibility to explore a very wide interval of primary energies in the framework of a single experiment.…”

Section: Introductionmentioning

confidence: 99%

Measurements of the energy deposit of multi-muon events in the Cherenkov water calorimeter

et al. 2017

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Abstract.To solve the problem of the excess of multi-muon events observed in several cosmic ray experiments at ultra-high energies (so-called "muon puzzle"), an analysis of the energy characteristics of the muon component of extensive air showers (EAS) is required. A possible approach to such investigations is the measurement of the energy deposit of muon bundles in the detector, which provides information on the mean muon energy. In the experiment now being conducted at the NEVOD-DECOR complex, the local muon density and EAS arrival direction are determined according to the data of the coordinate-tracking detector DECOR, whereas the energy deposit is measured by means of the Cherenkov water calorimeter NEVOD. Results of the measurements of the energy deposit of inclined muon bundles based on the data accumulated during more than 23,200 h observations in 2012 -2016 are presented and compared with simulations performed by means of the CORSIKA code.

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Cited by 71 publications

References 1 publication

Study of the energy deposit of muon bundles in the NEVOD detector

Study of the energy deposit of muon bundles in the NEVOD detector

Ultra-high energy cosmic ray investigations by means of EAS muon density measurements

Measurements of the energy deposit of multi-muon events in the Cherenkov water calorimeter

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