Multiplicity dependence of two-pion correlations
- Massachusetts Inst. of Tech., Cambridge, MA (United States)
Experiment E859 has measured two-pion correlations for 14.6 A{center_dot}GeV/c {sup 28}Si + Au and {sup 28}Si + Al systems as a function of total charged particle multiplicity. The data have been divided into three multiplicity regions for each system, and fits to two-dimensional Gaussian sources have been performed. The extracted source parameters R{sub l} and {tau} show little or no multiplicity dependence while the parameters R{sub t} and R show a slight dependence. Two-pion correlations were also measured for the 11.6 A{center_dot}GeV/c {sup 197}Au + Au system as part of experiment E866. The rms radius (R{sub rms}) for this system was found to be 7.03 {plus_minus} 0.53 fm, consistent with a scaling of R{sub rms} = 1.2A{sub p}{sup 1/3}, where A{sub p} is the number of projectile nucleons.
- Research Organization:
- Brookhaven National Lab., Upton, NY (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States); National Aeronautics and Space Administration, Washington, DC (United States); US-Japan High Energy Physics Collaboration
- DOE Contract Number:
- AC02-76CH00016
- OSTI ID:
- 10151270
- Report Number(s):
- BNL-60250; CONF-930173-21; ON: DE94011928
- Resource Relation:
- Conference: HIPAGS 93: workshop on heavy ion physics at the alternating gradient synchrotron,Cambridge, MA (United States),14-17 Jan 1993; Other Information: PBD: [1993]
- Country of Publication:
- United States
- Language:
- English
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