Negative binomial distribution fits to multiplicity distributions is restricted {delta}{eta} intervals from central O+Cu collisions at 14.6A GeV/c and their implication for {open_quotes}Intermittency{close_quotes}
- Brookhaven National Laboratory, Upton, NY (United States)
Experience in analyzing the data from Light and Heavy Ion Collisions in terms of distributions rather than moments suggests that conventional fluctuations of multiplicity and transverse energy can be well described by Gamma or Negative Binomial Distributions (NBD). Multiplicity distributions were obtained for central {sup 16}O+Cu collisions in bins of {delta}{eta}= 0.1,0.2, 0.3 .... 0.5,1.0, where the bin of 1.0 covers 1.2 < {eta} < 2.2 in the laboratory. NBD fits were performed to these distributions with excellent results in all {delta}{eta} bins. The {kappa} parameter of the NBD fit increases linearly with the {delta}{eta} interval, which is a totally unexpected and particularly striking result. Due to the well known property of the NBD under convolution, this result indicates that the multiplicity distributions in adjacent bins of pseudorapidity {delta}{eta} {approx} 0.1 are largely statistically independent. The relationship to 2-particle correlations and {open_quotes}Intermittency{close_quotes} will be discussed.
- OSTI ID:
- 387130
- Report Number(s):
- CONF-931044-; ISSN 0003-0503; TRN: 96:027070
- Journal Information:
- Bulletin of the American Physical Society, Vol. 38, Issue 9; Conference: Fall meeting of the Division of Nuclear Physics of the American Physical Society, Pacific Grove, CA (United States), 20-23 Oct 1993; Other Information: PBD: Oct 1993
- Country of Publication:
- United States
- Language:
- English
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Negative binomial fits to multiplicity distributions in restricted {delta}{eta} intervals from central O+Cu collisions at 14.6A GeV/c and their implication for ``Intermittency``
Negative binomial fits to multiplicity distributions from central collisions of {sup 16}O + Cu at 14.6A GeV/c and intermittency