Atmospheric effects in the intensity of muon bundles and geometrical mechanism of their formation

International Conference on Particle Physics and Astrophysics

Kokoulin, R.P.^1 ; Bogdanov, A.G.^1 ; Dmitrieva, A.N.^1 ; Romanenkova, E.V.^1 ; Shutenko, V.V.^1 ; Yurina, E.A.^1

National Research Nuclear University MEPhI, Moscow Engineering Physics Institute, Kashirskoe shosse 31, Moscow

115409, Russia^1

关键词: Atmospheric effects;    Cosmic-ray particles;    Geometrical changes;    Ground level;    Intensity variations;    Residual pressures;    Seasonal variation;    Temporal change;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/675/3/032034/pdf
DOI  :  10.1088/1742-6596/675/3/032034

来源: IOP

【 摘 要 】

Temporal changes in the intensity of muon bundles produced as a result of interactions of primary cosmic ray particles with energies of the order of 1015eV and detected at the ground level are analyzed. Seasonal variations, barometric and temperature effects, and correlations with the altitudes of various levels of residual pressure are considered. It is shown that muon bundle intensity variations are well explained in frame of a simple mechanism related with changes of the muon lateral distribution function at the observation level caused by geometrical changes of the effective altitude of the formation of the bundles.