Sensitive test for models of bose-einstein correlations

Eggers H.C. ; Lipa P. ; Buschbeck B. (1997)


Accurate and sensitive measurements of higher order cumulants open up new approaches to pion interferometry. It is now possible to test whether a given theoretical prediction can match cumulants of both second and third order. Our consistency test utilizes a new sampling technique combining theoretically predicted functions with experimentally determined weights in a quasi-Monte Carlo approach. Testing a simplified version of a quantum statistics-based framework of Bose-Einstein correlations with this technique, we find that predictions for third order cumulants differ significantly from UA1 data. This discrepancy may point the way to more detailed dynamical information.

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