Abstract
The PHENIX experiment at RHIC measured identified hadrons in several collision systems and centrality classes. Measurements were performed in different years and independent decay modes. The mesons show universal high-pT supression in the different collision systems which suggest no dependency on the size of the projectile. Yields of π0, ɳ, KS, K* and Φ mesons measured in large systems show similar suppression pattern at for similar numbers of participant nucleons. In the intermediate pT region, between 2 and 5 GeV/c, a significant enhancement of baryon-to-meson ratios compared to those measured in pp collisions is observed. In small systems an ordering (RpA > RdA > RHeA) for the mesons (π0 and Φ) at mid-pT was observed.
Export citation and abstract BibTeX RIS
Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.