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摘要
The study of average characteristics of pi(-)- mesons in Helium-Carbon and Carbon-Carbon interactions at 4.2A GeV/c is presented. The average values of multiplicity, momentum and transverse momentum of pi(-)- mesons are analyzed as a function of the number of identified protons in an event. The latter is used to fix the centrality of collisions. The results are compared with Cascade model and modified Fritiof model. Some deviations of experimental data are observed than the models, which could be connected to collective interaction of inner nucleus nucleons.
- 出版日期2016-3
