Hybrid method for identifying mass groups of primary cosmic rays in the joint operation of IACTs and wide angle Cherenkov timing arrays

International Conference on Particle Physics and Astrophysics

物理学;天文学

Postnikov, E.B.^1 ; Grinyuk, A.A.^2 ; Kuzmichev, L.A.^1 ; Sveshnikova, L.G.^1

Lomonosov Moscow State University Skobeltsyn Institute of Nuclear Physics (MSU SINP), Leninskie gory 1(2), GSP-1, Moscow

119991, Russia^1

Joint Institute for Nuclear Research (JINR), Joliot-Curie 6, Moscow region, Dubna

141980, Russia^2

关键词: Array simulations;    Different mass;    Energy ranges;    Geometrical forms;    Hybrid method;    Joint operations;    Simulation data;    Wide angle;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/798/1/012030/pdf
DOI  :  10.1088/1742-6596/798/1/012030

学科分类：天文学(综合)

来源: IOP

【 摘 要 】

This work is a methodical study of another option of the hybrid method originally aimed at gamma/hadron separation in the TAIGA experiment. In the present paper this technique was performed to distinguish between different mass groups of cosmic rays in the energy range 200 TeV - 500 TeV. The study was based on simulation data of TAIGA prototype and included analysis of geometrical form of images produced by different nuclei in the IACT simulation as well as shower core parameters reconstructed using timing array simulation. We show that the hybrid method can be sufficiently effective to precisely distinguish between mass groups of cosmic rays.