Abstract
Using the relativistic quantum molecular dynamics model, we studythe influence of multiple scattering on the result of two-pioncorrelation measurements. The scales of pion spatial distribution arelarger at thermal freeze-out than at chemical freeze-out. Byvarying the value of the parameter of cross section from 0 to 90 mb, wefind that the sizes of pion source measured by two-particle correlationfunctions are almost independent of the parameter of cross section.However, λ parameters are sensitive to the parameter of crosssection.
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