Azimuthally integrated HBT parameters for charged pions in nucleus-nucleus interactions versus collision energy

Abstract

In the paper energy dependence of space-time extent of emission region obtained from Bose - Einstein correlations is studied for charged pions in various ion collisions for all experimentally available energies. There is no dramatic change of HBT parameters with increasing of collision energy per nucleon-nucleon pair, $\sqrt{s_{NN}}$, in domain of energies $\sqrt{s_{NN}}\ge 5$ GeV. Energy dependence of estimations for emission duration is almost flat for all energy domain under study within large error bars. Analytic function is suggested for smooth approximation of energy dependence of main HBT parameters. Fit curves demonstrate reasonable agreement with experimental data for most HBT parameters in energy domain $\sqrt{s_{NN}}\ge 5$ GeV. Estimations of some observables are obtained for energies of the LHC and FCC project.

arXiv comment14 pages, 6 figures, 4 tables

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• Azimuthally integrated HBT parameters for charged pions in nucleus-nucleus interactions versus collision energy
• Global characteristics of the medium produced in ultra-high energy cosmic ray collisions
• Levy distributions for one-dimensional analysis of the Bose-Einstein correlations
• NICA-MPD: azimuthal and femtoscopic particle correlations