Longitudinal scaling property of the charge balance function in Au + Au collisions at √sN N = 200 GeV

Abelev, B. I. and Planinić, Mirko and Poljak, Nikola and Zoulkarneeva, Y. (STAR Collaboration) (2010) Longitudinal scaling property of the charge balance function in Au + Au collisions at √sN N = 200 GeV. Physics Letters B, 690 (3). pp. 239-244. ISSN 0370-2693

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We present measurements of the charge balance function, from the charged particles, for diverse pseudorapidity and transverse momentum ranges in Au + Au collisions at √sN N = 200 GeV using the STAR detector at RHIC. We observe that the balance function is boost-invariant within the pseudorapidity coverage [−1.3, 1.3]. The balance function properly scaled by the width of the observed pseudorapidity window does not depend on the position or size of the pseudorapidity window. This scaling property also holds for particles in different transverse momentum ranges. In addition, we find that the width of the balance function decreases monotonically with increasing transverse momentum for all centrality classes.

Item Type: Article
Keywords: scaling, longitudinal heavy ion, scattering gold rapidity transverse momentum Brookhaven RHIC Coll charged particle, density STAR charge distribution charge correlation 200 GeV-cms/nucleon
Date: 21 June 2010
Subjects: NATURAL SCIENCES > Physics
Divisions: Faculty of Science > Department of Physics
Project code: 119-0982887-1006
Publisher: Elsevier
Depositing User: Nikola Poljak
Date Deposited: 09 Feb 2015 20:22
Last Modified: 24 Feb 2016 15:31
URI: http://digre.pmf.unizg.hr/id/eprint/3662

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