Two-particle correlations from the q-Boson viewpoint
D.V. Anchishkin1,2 - A.M. Gavrilik2 - N.Z. Iorgov2
1 CERN TH-Division, 1211 Geneva 23, Switzerland
2 Bogolyubov Institute for Theoretical Physics, National Academy of Sciences of Ukraine, 252143 Kiev-143, Ukraine
Received: 2 July 1999 / Revised version: 11 November 1999 Communicated by A. Schäfer
We propose and develop to some extent a novel approach, which allows to effectively describe, for relativistic heavy-ion collisions, the empirically observed deviation from unity of the intercept (i.e. the measured value corresponding to zero relative momentum of two registered identical pions or kaons) of the two-particle correlation function C(p,K). The approach is based on the use of two versions of the so-called q-deformed oscillators and the corresponding picture of ideal gases of q-bosons. By these techniques the intercept is put into direct correspondence with the deformation parameter q. For fixed deformation strength, the model predicts particular dependence of the intercept on the pion pair mean momentum .
25.75.-q Relativistic heavy-ion collisions
Copyright Società Italiana di Fisica, Springer-Verlag 2000