Scaled-factorial-moment analysis of 200A-GeV sulfur+gold interactions

Abstract

S+Au interactions at 200,4 GeV were observed using emulsion chambers, permitting measurement of pseudorapidities in the central region with precision --0.01 unit. Scaled-factorial-moment analyses are extended to bin sizes smaller than those accessible to other fixed-target experimental techniques. For a sample of 151 central collisions, moments are calculated using both "horizontal" and "vertical" analysis techniques. While the moments are found to rise (in a log-log plot) with decreasing pseudorapidity bin size 8rf, their slopes roll off to approximately zero for 8rj < 0.1.

Scaling laws for density correlations and fluctuations in multiparticle dynamics

“…The suggestion that normalized factorial moments of particle distributions might show power-law behaviour has spurred a vigorous experimental search for (more or less) linear dependence of ln F q on − ln δy. Within a surprisingly short time (one-dimensional) analyses were performed for e + e − [133][134][135][136][137][138][139], µp [140], νA [141], hh [142][143][144][145][146][147][148], hA [149][150][151][152][153][154] and AA [149,150,[155][156][157][158][159][160][161] collisions. With respect to the original objective, the early one-dimensional work has remained inconclusive, but valuable information and experience was accumulated.…”

High Energy Density Fluctuations in Terms of Factorial Moments and Associated Frequency Moments

“…As far as experimental data allow to extract the value of quantities (20). Analogous conclusion can be formulated g if the value q = 4, 5, ... is inserted in (16).…”

“…Factorial moments of the form (23), up to the normalization factor, are successfully applied e.g. when there are investigated interactions of 200 A GeV sulphur nuclei with gold target 11 , as well as in several other cases (compare e.g. Table 2).…”

Study of the Cumulative Number Distribution of Charged Particles Produced in p12C-Interactions at 4.2 A GeV/c

“…The nuclei that are excited and are unable to produce new particles after the cascade stage are then described by the statistical theory in the evaporation approximation. The basic assumptions and procedures of the cascade model are given in papers [23,24]. four different regions in the distribution: 0.02<x<0.18(first region); 0.26<x<0.66(second region); 0.74<x<0.90 (third region); x>1.0 (fourth region) which were compared with data generated through simulation by using the Cascaded Model.…”

“…The model was described in somewhere else [21,23], based on Monte-Carlo simulation, used to explain the common prospects of nucleus-nucleus and hadron-nucleus collisions at relativistic energies. In this model, the system of colliding nuclei is acted as gas of nucleon bound in a potential well.…”