scholarly journals Rapidity dependence of multiplicity distributions in proton-nucleus collisions at 360 GeV/c

1988 ◽  
Vol 40 (2) ◽  
pp. 215-221 ◽  
Author(s):  
◽  
J. L. Bailly ◽  
S. Banerjee ◽  
C. Caso ◽  
Y. Chiba ◽  
...  
Keyword(s):  
Multiplicity Distributions ◽  
Rapidity Dependence

scholarly journals Rapidity dependence of the charged particle multiplicity distributions in e+e− annihilation at 29 GeV

1986 ◽  
Vol 168 (3) ◽  
pp. 299-304 ◽  
Author(s):  
M. Derrick ◽  
K.K. Gan ◽  
P. Kooijman ◽  
J.S. Loos ◽  
B. Musgrave ◽  
...  
Keyword(s):  
Charged Particle ◽  
Particle Multiplicity ◽  
Charged Particle Multiplicity ◽  
Multiplicity Distributions ◽  
Rapidity Dependence

RAPIDITY DEPENDENCE OF MULTIPLICITY DISTRIBUTIONS IN ALPHA-EMULSION INTERACTIONS AT 12.4A GEV

1990 ◽  
Vol 05 (20) ◽  
pp. 3985-3997 ◽  
Author(s):  
M. M. AGGARWAL ◽  
R. ARORA ◽  
S. B. BERI ◽  
V. S. BHATIA ◽  
M. KAUR ◽  
...  
Keyword(s):  
Size Dependence ◽  
Negative Binomial ◽  
Target Size ◽  
Binomial Distributions ◽  
Multiplicity Distributions ◽  
Rapidity Dependence ◽  
Forward Hemisphere

We present results based on an analysis of alpha-emulsion interactions at 12.4A GeV. The multiplicity distributions of shower particles in the restricted rapidity intervals are well described by negative binomial distributions (NBD). The behaviour of parameters [Formula: see text] and 1/k of the NBD with increasing Δy in the backward hemisphere is quite different from that found in elementary collisions. Star size dependence is also investigated. An attempt has been made to interpret the results in the framework of a clan model. In the forward hemisphere the average decay multiplicity of clans is small [Formula: see text] and seems to be target-independent, whereas bigger clans are produced in the backward hemisphere and their sizes seem to depend on the target size. Also the average number of clans in the backward hemisphere is less than that in the forward hemisphere and shows target size dependence. Clans seem to be produced independently and their extent in rapidity seems to be target-independent.

scholarly journals INFLUENCE OF STATISTICAL FLUCTUATIONS ON K/π RATIOS IN RELATIVISTIC HEAVY ION COLLISIONS

2001 ◽  
Vol 16 (07) ◽  
pp. 1227-1235 ◽  
Author(s):  
C. B. YANG ◽  
X. CAI
Keyword(s):  
Negative Binomial ◽  
Heavy Ion ◽  
Relativistic Heavy Ion Collisions ◽  
Relative Variance ◽  
Ion Collisions ◽  
Statistical Fluctuations ◽  
Binomial Distributions ◽  
The Mean ◽  
Multiplicity Distributions ◽  
Statistical Background

The influence of pure statistical fluctuations on K/π ratio is investigated in an event-by-event way. Poisson and the modified negative binomial distributions are used as the multiplicity distributions since they both have statistical background. It is shown that the distributions of the ratio in these cases are Gaussian, and the mean and relative variance are given analytically.

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