Rapid change of multiplicity fluctuations in system size dependence at SPS energies
arXiv:1712.03014
Abstract
Recent preliminary results on multiplicity fluctuations in p+p, Be+Be and Ar+Sc collisions from the NA61/SHINE collaboration are presented. The scaled variance of charged hadron multiplicity changes little when going from p+p to Be+Be collisions and drops dramatically from Be+Be to Ar+Sc interactions. The centrality selection procedure and the influence of volume fluctuations are discussed. Comparisons with the EPOS event generator are shown.
The 3rd International Conference on Particle Physics and Astrophysics, Moscow, Russia, 2-5 October 2017