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 - Článek v odborném periodiku
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
Grant CEP: GA MŠMT ME 475
Výzkumný záměr: CEZ:AV0Z1048901
Klíčová slova: quark-gluon plasma * heavy-ion collisions * fluctuation
Kód oboru RIV: BF - Elementární částice a fyzika vys. energií
Impakt faktor: 7.035, rok: 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.
Trvalý link: http://hdl.handle.net/11104/0082156