Testing of the DPMJET and VENUS hadronic interaction models with help of the atmospheric muons

International Conference on Particle Physics and Astrophysics

物理学;天文学

Dedenko, L.G.^1,2 ; Lukyashin, A.V.^3,4 ; Roganova, T.M.^2 ; Fedorova, G.F.^2

Faculty of Physics M.V. Lomonosov, Moscow State University, Leninskie Gory, Moscow

119991, Russia^1

Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, Moscow

119234, Russia^2

State Scientific Center Institute for Theoretical and Experimental Physics, National Research Center, Kurchatov Institute, Moscow

117218, Russia^3

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

115409, Russia^4

关键词: Atmospheric muons;    Energy spectra;    Fixed energy;    Hadronic interaction models;    Muon flux;    Primary particles;    Secondary particles;    Standard atmospheres;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/798/1/012045/pdf
DOI  :  10.1088/1742-6596/798/1/012045

学科分类：天文学(综合)

来源: IOP

【 摘 要 】

The more accurate original calculations of the atmospheric vertical muon energy spectra at energies 102- 105GeV have been carried out in terms of DPMJET and VENUS models. The Gaisser-Honda approximations of the measured energy spectra of primary protons, helium and nitrogen nuclei have been used. The package CORSIKA has been used to simulate cascades in the standard atmosphere induced by different primary particles with various fixed energies E. Statistics of simulated cascades for secondary particles with energies (0.01-1)•E was increased up to 106. It has been shown that predictions of the DPMJET and VENUS models for these muon fluxes are below the data of the classical experiments L3 + Cosmic, MACRO and LVD by factors of ∼ 1.6-1.95 at energies above 102GeV. It has been concluded that these tested models underestimate the production of the most energetic secondary particles, namely, π-mesons and K-mesons, in interactions of the primary protons and other primary nuclei with nuclei in the atmosphere by the same factors.