ZONAL POISSONIAN PION MULTIPLICITY IN CENTRAL ²⁴<font>Mg-AgBr</font> COLLISIONS AT DUBNA ENERGY

Abstract

This paper reports a study on the coherent production of pions in central 24 Mg-AgBr collisions at 4.5 GeV /c per nucleon. The analysis is based on a comparison of experimental multiplicity distribution in different pseudo rapidity bins with Poissonic distributions. It has been observed that pion multiplicity is Poissonian in some specific zone. The physical implication is also discussed.