News on mean pion multiplicity from NA61/SHINE

Michał Naskręt, A. Mischke, P. Kuijer
2018 EPJ Web of Conferences  
NA61/SHINE is a large acceptance fixed target experiment at the CERN SPS which studies final hadronic states in interactions between various particles and nuclei [1] . The main topic of this contribution are preliminary results for mean negatively charged pion multiplicities π − from central Ar+Sc and Be+Be collisions. The data were taken recently by the NA61/SHINE collaboration for a wide range of beam momenta. Measured rapidity distributions dn dy were extrapolated to unmeasured regions to
more » ... sured regions to obtain total multiplicities π − . A new scheme to calculate the mean number of wounded nucleons W utilizing the EPOS MC model is described. Using data from other experiments, a comparison of π W for different collisions and beam momenta is discussed.
doi:10.1051/epjconf/201817116006 fatcat:wwltbxmcpjb7djqbe5dpsrunr4