Production of π0 and η mesons in U+U collisions at √{sN N}=192 GeV
Abstract
The PHENIX experiment at the Relativistic Heavy Ion Collider measured π0 and η mesons at midrapidity in U +U collisions at √{sNN}=192 GeV in a wide transverse momentum range. Measurements were performed in the π0(η ) →γ γ decay modes. A strong suppression of π0 and η meson production at high transverse momentum was observed in central U +U collisions relative to binary scaled p +p results. Yields of π0 and η mesons measured in U +U collisions show similar suppression pattern to those measured in Au +Au collisions at √{sNN}=200 GeV for similar numbers of participant nucleons. The η /π0 ratios do not show dependence on centrality or transverse momentum and are consistent with previously measured values in hadron-hadron, hadron-nucleus, nucleus-nucleus, and e+e- collisions.
- Publication:
-
Physical Review C
- Pub Date:
- December 2020
- DOI:
- 10.1103/PhysRevC.102.064905
- arXiv:
- arXiv:2005.14686
- Bibcode:
- 2020PhRvC.102f4905A
- Keywords:
-
- High Energy Physics - Experiment;
- Nuclear Experiment
- E-Print:
- 403 authors from 72 institutions, 13 pages, 6 figures, 7 tables, 2012 data. v2 is version accepted by Physical Review C. Plain text data tables for the points plotted in figures for this and previous PHENIX publications are (or will be) publicly available at http://www.phenix.bnl.gov/papers.html