Jet structure of baryon excess in Au+Au collisions at √(sNN)=200GeV
Abstract
Two particle correlations between identified meson and baryon trigger particles with 2.5<pT<4.0GeV/c and lower pT charged hadrons have been measured at midrapidity by the PHENIX experiment at RHIC in p+p,d+Au, and Au+Au collisions at √(sNN)=200GeV. In noncentral Au+Au collisions, the probability of finding a hadron near in azimuthal angle to the trigger particles is almost identical for mesons and baryons and significantly higher than in p+p collisions. The associated yields for trigger baryons decrease in the most central collisions, consistent with some baryon production by thermal recombination in addition to hard scattering.
- Publication:
-
Physical Review C
- Pub Date:
- May 2005
- DOI:
- 10.1103/PhysRevC.71.051902
- arXiv:
- arXiv:nucl-ex/0408007
- Bibcode:
- 2005PhRvC..71e1902A
- Keywords:
-
- 25.75.Dw;
- Particle and resonance production;
- Nuclear Experiment
- E-Print:
- 396 authors, 6 pages text, 4 figures, RevTeX 4. To be submitted to PRL. 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