NEVOD–DECOR Experiment on the Measurement of the Energy Deposit of Cosmic Ray Muon Bundles

An experiment on the measurements of the energy deposit of inclined cosmic ray muon bundles is being conducted at the experimental complex NEVOD (MEPhI). The complex includes the Cherenkov water calorimeter with a volume of 2000 m3 and the coordinate-tracking detector DECOR with a total area of 70 m2. The DECOR data are used to determine the local muon densities in the bundle events and their arrival directions, while the energy deposits (and hence the average muon energy loss) are evaluated from the Cherenkov calorimeter response. Average energy loss carries information about the mean muon energy in the bundles. The detection of the bundles in a wide range of muon multiplicities and zenith angles gives the opportunity to explore the energy range of primary cosmic ray particles from about 10 to 1000 PeV in the frame of a single experiment with a relatively small compact setup. Experimental results on the dependence of the muon bundle energy deposit on the zenith angle and the local muon density are presented and compared with expectations based on simulations of the EAS muon component with the CORSIKA code.

Download Full-text

Muon bundles from cosmic-ray multi-Wphenomena

Physical Review D ◽

10.1103/physrevd.44.3530 ◽

1991 ◽

Vol 44 (11) ◽

pp. 3530-3542 ◽

Cited By ~ 9

Author(s):

D. A. Morris ◽

R. Rosenfeld

Keyword(s):

Cosmic Ray ◽

Muon Bundles

Download Full-text

Measuring the Cherenkov light yield from cosmic ray muon bundles in the water detector

Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment ◽

10.1016/j.nima.2018.11.045 ◽

2020 ◽

Vol 952 ◽

pp. 161586

Author(s):

R.P. Kokoulin ◽

N.S. Barbashina ◽

A.G. Bogdanov ◽

S.S. Khokhlov ◽

V.A. Khomyakov ◽

...

Keyword(s):

Light Yield ◽

Cosmic Ray ◽

Cherenkov Light ◽

Muon Bundles

Download Full-text

Longitudinal profiles of Extensive Air Showers with inclusion of charm and bottom particles

International Journal of Modern Physics A ◽

10.1142/s0217751x19500696 ◽

2019 ◽

Vol 34 (12) ◽

pp. 1950069

Author(s):

M. A. Müller ◽

V. P. Gonçalves

Keyword(s):

Large Fraction ◽

Cosmic Ray ◽

Primary Energy ◽

Considerable Change ◽

Extensive Air Showers ◽

Longitudinal Profile ◽

Air Showers ◽

Energy Deposit ◽

Production Models ◽

Longitudinal Profiles

Charm and bottom particles are rare in Extensive Air Showers, but their effects can be radical on the EASs development. If such particles show up with a large fraction of primary energy, they can reach large atmospheric depths, depositing energy in deeper layers of the atmosphere. That will cause changes at the EAS observables ([Formula: see text], RMS and [Formula: see text]), besides a considerable change in the shape of longitudinal profile energy deposit in the atmosphere. We are using for this work a modified code of an EAS simulator, CORSIKA, with production of charm and bottom particles at the first interaction of the primary cosmic ray. We will show in this paper some results to different [Formula: see text] values and different production models.

Download Full-text