Primary cosmic ray energy spectrum and mean mass composition using data from the TAIGA astrophysical complex
SciPost physics proceedings(2023)
摘要
The corrected dependence of the mean depth of the EAS maximum X_{max} X m a x on the energy was obtained from the data of the Tunka-133 array for 7 years and the TAIGA-HiSCORE array for 2 years. The parameter \langle\ln A\rangle ⟩ ln A ⟪ , characterizing the mean mass compositon was derived from these results. The differential energy spectrum of primary cosmic rays in the energy range of 2\cdot 10^{14} 2 ⋅ 10 14 – 2\cdot 10^{16} 2 ⋅ 10 16 eV was reconstructed using the new parameter Q_{100} Q 100 the Cherenkov light flux at the core distance 100 m. Change of the parameter for the energy reconstuction for the TAIGA-HiSCORE from Q_{200} Q 200 to Q_{100} Q 100 provides a decreasing energy threshold for the spectrum to about 200 TeV.
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关键词
taiga astrophysical complex,energy spectrum,mass composition
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