Olimov Kh.K., Hadi S.A., Haseeb M.Q. et al. Centrality Dependence of Rapidity Spectra of Negative Pions in 12 C+12 12 C+12 12 C+12 Cand 12 C+181 12 C+181 12 C+181 Ta Collisions at 4.2 GeV/c Per Nucleon.

Abstract—The centrality dependences of the experimental rapidity as well as transversemomentumversus rapidity spectra of negative pions were analyzed quantitatively in 12C+12Cand 12C+181Ta collisions at 4.2 GeV/c per nucleon using fitting the pion spectra by Gaussian distribution function. The experimental
results were compared systematically with the predictions of the Quark–Gluon–String Model (QGSM) adapted to intermediate energies.