Analysis of fluctuation of fluctuations in 32S–AgBr interactions at 200 A GeV

The possible signature of chaotic behavior of multiparticle production in nucleus–nucleus collision has been investigated with the help of a new parameter, the entropy index μq. This index describes the event-to-event fluctuation of factorial moments which measures the spatial fluctuation of the multiplicity distribution. An analysis of 32S–AgBr interaction data at 200 A GeV reveals a large value for the entropy index signifying chaotic behavior of the multipion production process in ultrarelativistic nuclear interactions.