In the LHC experiment, the neutral pions produced during jet fragmentation are the background sources for all physics channels with high-energy photons in their final state. In this paper, the application of the three-dimensional parametric formula for electromagnetic (EM) showers, which we develope...
Supported by National Natural Science Foundation of China (10435070, 10721140381, 10099630)
; China Ministry of Science and Technology (2007CB16101)
; Chinese Academy of Sciences (KJCX2-N17, 1730911111)