Charged particle production in interactions of Mg-24 nuclei in nuclear emulsion at 3.7 A GeV

摘要

A systematic study on the multiplicity characteristics of relativistic particles in interactions of 3.7 A GeV Mg-24 projectile with nuclear emulsion targets was carried out. The dependence of average multiplicities of produced charged particles on the calculated numbers of wounded nucleons and the total number of interactions is studied. In the framework of the wounded nucleon model, the average number of produced particles per participant is independent of impact parameter. The dependence of the mean produced particle multiplicities in nucleus-nucleus interactions (n(pi)) on the normalized charge flow in the forward direction zeta, which is experimentally measured and strongly correlated with the impact parameter b, is investigated via a single formula based on a simple geometrical model. A strong dependence of the average value of the produced charged particles on both size and energy of the beam nucleus is observed. The experimental values are in good agreement with the theoretical calculations based on a simple geometrical model. [References: 69]