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Modeling Bose-Einstein correlations in heavy ion collisions at RHIC

Bysterský M.

Nukleonika

2004

Vol. 49,suppl.2

37-39

Using UrQMD generated Au-Au collisions, two different methods of introducing Bose-Einstein (BE) correlations among final state particles are applied. New algorithm, which reassigns charges of produced particles but does not alter the original four-momenta, provided by an event generator, is compared to the standard weighting method. Correlation functions C2 in qinv and Bertsch-Pratt parametrizations are studied. While longitudinal radii are the same in both approaches, the transverse and invariant radii as well as the correlation strength ë are substantially overestimated in charge reassigning approach.