English

Selected results on Strong and Coulomb-induced correlations from the STAR experiment

Nuclear Experiment 2011-08-04 v3

Abstract

Using recent high-statistics STAR data from Au+Au and Cu+Cu collisions at full RHIC energy I discuss strong and Coulomb-induced final state interaction effects on identical (ππ\pi-\pi) and non-identical (πΞ\pi-\Xi) particle correlations. Analysis of πΞ\pi-\Xi correlations reveals the strong and Coulomb-induced FSI effects allowing for the first time to estimate space extension of π\pi and Ξ\Xi sources and average shift between them. Source imaging technique providing clean separation of these effects from effects due to the source function itself is applied to one-dimensional relative momentum correlation function of identical pions. For low momentum pions and/or non-central collisions large departure from a single-Gaussian shape is observed.

Keywords

Cite

@article{arxiv.nucl-ex/0702015,
  title  = {Selected results on Strong and Coulomb-induced correlations from the STAR experiment},
  author = {M. Sumbera},
  journal= {arXiv preprint arXiv:nucl-ex/0702015},
  year   = {2011}
}