Two-particle angular correlations in p+p and Cu+Cu collisions at PHOBOS
Abstract
We present results on two-particle angular correlations in p+p and Cu+Cu collisions over a broad range of (,). The PHOBOS detector has a uniquely large angular coverage for inclusive charged particles. This allows for the study of correlations on both long and short range pseudorapidity scales. A complex two-dimensional correlation structure emerges which is interpreted in the context of a cluster model. The cluster size and its decay width are extracted from the two-particle pseudorapidity correlation function. Relative to p+p collisions, Cu+Cu reactions show a non-trivial decrease of cluster size with increasing centrality. These results may provide insight into the hadronization stage of the hot and dense medium created in heavy ion collisions.
Cite
@article{arxiv.nucl-ex/0701055,
title = {Two-particle angular correlations in p+p and Cu+Cu collisions at PHOBOS},
author = {Wei Li},
journal= {arXiv preprint arXiv:nucl-ex/0701055},
year = {2008}
}
Comments
5 pages, 4 figures, presented at the 19th International Conference on Ultra-Relativistic Nucleus-Nucleus Collisions, "Quark Matter 2006", Shanghai, China, November 14-20, 2006