NA61/SHINE results on Bose-Einstein correlations
arXiv:1904.08169 · doi:10.22323/1.347.0184
Abstract
One of the main goals of NA61/SHINE is the investigation of the phase diagram of strongly interacting matter. NA61/SHINE observes collisions of various nuclei at different energies, allowing to study the same phenomena and observables in vastly different conditions. One of the observables related to the quark-hadron transition is the Bose-Einstein momentum correlation function of identical pions, related to the space-time structure of pion emission. In this paper we report on such measurements in Be+Be collisions at an SPS beam momentum of 150A GeV/c. Our correlation functions can be statistically well described with Levy-distributed sources, hence we also study the mT dependence of the Levy source parameters, and discuss their possible interpretations.
arXiv comment7 pages, 3 figures, proceedings of the Critical Point and Onset of Deconfinement Conference (CPOD 2018), Corfu, Greece, September 24 - 28, 2018, submitted to Proceedings of Science