The analysis of mesons produced in nucleus-nucleus collisions at a momentum of 4.5 GeV/c nucleon in light front variables
1 Joint Institute for Nuclear Research, 141980 Dubna, Russia
2 High Energy Physics Institute, Tbilisi State University, University Str. 9, 380086 Tbilisi, Republic of Georgia
3 Mathematical Institute of the Georgian Academy of Sciences, M. Alexidze Str. 1, 380093 Tbilisi, Republic of Georgia
Received: 29 September 1999 Communicated by B. Povh
The light front analysis of 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.
25.70.-z Low and intermediate energy heavy-ion reactions
Copyright Società Italiana di Fisica, Springer-Verlag 2000