Event by event fluctuations of the source shape: implications for the Levy shape, and Event Shape Sorting

Abstract

In the first part of this contribution we show that the Levy stable shape of the correlation function can be caused by averaging of the measured correlation functions over a large number of events. In the second part it is demonstrated how a sample of events sorted by Event Shape Sorting technique exhibits different azimuthal dependence of correlation radii in each event class.

Comments: 6 pages, 5 figures, proceedings of the XIII Workshop on Particle Correlations and Femtoscopy, Cracow, 22-26 May 2018, two references updated