Distortion of two-pion interferometry by multipion correlations

Journal Article · Mon Feb 01 04:00:00 UTC 1993 · Physical Review, C (Nuclear Physics); (United States)

DOI:https://doi.org/10.1103/PhysRevC.47.795· OSTI ID:6888756

Zhang, W N; Liu, Y M; Wang, S; Liu, Q J ^[1]; Jiang, J; Keane, D; Shao, Y ^[2]; Chu, S Y; Fung, S Y ^[3]

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1. Department of Physics, Harbin Institute of Technology, Harbin 150006 (China)
2. Department of Physics, Kent State University, Kent, Ohio 44242 (United States)
3. Department of Physics, University of California, Riverside, California 92521 (United States)

Multipion correlations arising from the symmetrization of the [ital n]-pion wave function affect the extracted information from two-pion correlation measurements. The influence of multipion correlations on a sample of like-pion pairs can be expressed as a multipion correlation factor, the distribution of which offers good sensitivity to the multipion correlation effect. Analyses of the multipion correlation factor for two Bevalac streamer chamber data samples of 2.1[ital A] GeV Ne+Pb and 1.8[ital A] GeV Ar+Pb collisions show that the multipion correlation effect in the former sample is greater than in the latter. This result mainly arises from the fact that the pion source for Ne projectiles is smaller than for Ar projectiles. The residual correlations in the reference sample are related to the multipion correlation factor in multipion events, which can be expressed as a residual correlation factor. The influence of multipion correlations on two-pion interferometry analyses arises from the ratio of the residual correlation factor to the multipion correlation factor.

• OSTI ID: 6888756
• Journal Information: Physical Review, C (Nuclear Physics); (United States), Journal Name: Physical Review, C (Nuclear Physics); (United States) Vol. 47:2; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

663450* -- Heavy-Ion-Induced Reactions & Scattering-- (1992-)
663580 -- Nuclear Mass Ranges-- A=190-219-- (1992-)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BOSON-EXCHANGE MODELS
BOSONS
CHARGED-PARTICLE REACTIONS
CORRELATIONS
ELEMENTARY PARTICLES
ENERGY RANGE
HADRONS
HEAVY ION REACTIONS
INTERFEROMETRY
LEAD 208 TARGET
MATHEMATICAL MODELS
MESONS
NEON 20 REACTIONS
NUCLEAR REACTIONS
PARTICLE MODELS
PARTICLE PRODUCTION
PERIPHERAL MODELS
PIONS
PSEUDOSCALAR MESONS
RELATIVISTIC RANGE
TARGETS