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The analysis of pi- mesons produced in nucleus-nucleus collisions at a momentum of 4.5 GeV/c/nucleon in light front variables

M. Anikina, L. Chkhaidze, T. Djobava, V. Garsevanishvili, L. Kharkhelauri

hep-exarXiv:hep-ex/9911052

Abstract

The light front analysis of pi- mesons in He(Li,C), C-Ne, C-Cu and O-Pb collisions is carried out. The phase space of secondary pions is divided into two parts in one of which the thermal equilibrium assumption seems to be in a good agreement with the data. Corresponding temperatures T are extracted and their dependence on (AP*AT)1/2 is studied. The results are compared with the predictions of the Quark-Gluon String Model (QGSM). The QGSM satisfactorily reproduces the experimental data for light and intermediate-mass nuclei.

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