Abstract
We consider two-particle correlations which appear in relativistic nuclear collisions owing to the quantum statistics of identical particles in the frame of two formalisms: wave-function and current parametrizations. The first one is based on solution of the Cauchy problem, whereas the second one is a so-called current parametrization of the source of secondary particles. We argue that these two parametrizations of the source coincide when the wave-function at freeze-out times is put into a specific correspondence with a current. Then, the single-particle Wigner density evaluated in both approaches gives the same result.
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Anchishkin, D., Heinz, U. Two-particle correlations in the wave function and covariant current approaches. Phys. Atom. Nuclei 71, 1632–1646 (2008). https://doi.org/10.1134/S1063778808090202
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DOI: https://doi.org/10.1134/S1063778808090202