Narrowing of the balance function with centrality in Au plus Au collisions at root s(NN)=130 GeV

0185781 - UJF-V 20033101 RIV US eng J - Journal Article
Adams, J. - Adler, C. - Ahammed, Z. - Šumbera, Michal - Zborovský, Imrich
Narrowing of the balance function with centrality in Au plus Au collisions at root s(NN)=130 GeV.
Physical Review Letters. Roč. 90, č. 17 (2003), s. -172301. ISSN 0031-9007. E-ISSN 1079-7114
R&D Projects: GA MŠMT ME 475
Institutional research plan: CEZ:AV0Z1048901
Keywords : quark-gluon plasma * heavy-ion collisions * fluctuation
Subject RIV: BF - Elementary Particles and High Energy Physics
Impact factor: 7.035, year: 2003

The balance function is a new observable based on the principle that charge is locally conserved when particles are pair produced. Balance functions have been measured for charged particle pairs and identified charged pion pairs in Au+Au collisions at roots(NN)=130 GeV at the Relativistic Heavy Ion Collider using STAR. Balance functions for peripheral collisions have widths consistent with model predictions based on a superposition of nucleon-nucleon scattering. Widths in central collisions are smaller, consistent with trends predicted by models incorporating late hadronization.
Permanent Link: http://hdl.handle.net/11104/0082156