Pion Interferometric Tests of Transport Models
May, 198919 pages
Published in:
- Nucl.Phys.B 329 (1990) 357-375
- Published: 1990
Report number:
- LBL-24674
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Abstract: (Elsevier)
In hadronic reactions, the usual space-time interpretation of pion interferometry often breaks down due to strong correlations between spatial and momentum coordinates. We derive a general interferometry formula based on the Wigner density formalism that allows for arbitrary phase space and multiparticle correlations. Correction terms due to intermediate state pion cascading are derived using semiclassical hadronic transport theory. Finite wave packets are used to reveal the sensitivity of pion interference effects on the details of the production dynamics. The covariant generalization of the formula is shown to be equivalent to the formula derived via an alternate current ensemble formalism for minimal wave packets and reduces in the nonrelativistic limit to a formula derived by Pratt. The final expression is ideally suited for pion interferometric tests of Monte Carlo transport models. Examples involving gaussian and inside-outside phase space distributions are considered.- hadron hadron: interaction
- multiple production
- model: interaction
- model: cascade
- boson: statistics
- correlation function: ((n)pi)
- correlation function: formula
- model: phase space
- pi: interference
- MODEL: PHASE SPACE
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