Preliminary results for multiplicity and forward energy fluctuations are presented for inelastic p+p and the most central Be+Be and Ar+Sc collisions. The data were obtained by the NA61/SHINE detector at the CERN SPS. Centrality selection and forward energy measurement are based on the nucleon spectator energy in the forward hemisphere determined by the projectile spectator detector. The scaled variance ω of the multiplicity distribution and the strongly intensive quantity Ω of multiplicity and forward energy fluctuations were calculated for negatively charged hadrons. The scaled variance changes little when going from p+p to Be+Be collisions and drops dramatically from Be+Be to Ar+Sc interactions. A comparison with the EPOS event generator is shown.
Multiplicity and forward energy fluctuations from the NA61/SHINE experiment CERN
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Pre-published on:
January 16, 2018
Published on:
January 22, 2018
Abstract
DOI: https://doi.org/10.22323/1.311.0050
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Copyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Copyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.