Longitudinal Scaling Property of the Charge Balance Function in Au + Au collisions at √s[subscriptNN] = 200GeV
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Author(s)
STAR Collaboration
Corliss, Ross Cameron
Hays-Wehle, James Prewitt
Hoffman, Alan Michael
Jones, C. L.
Kocoloski, Adam Philip
Leight, William Axel
Date Issued
May 2010
Journal
Physics Letters B
Publisher
Elsevier
Citation
Abelev, B.I. et al. “Longitudinal Scaling Property of the Charge Balance Function in Au + Au collisions at √s[subscriptNN] = 200GeV.” Physics Letters B 690, 3 (June 2010): 239–244 © 2010 Elsevier B.V.
Version
Final published version
Abstract
We present measurements of the charge balance function, from the charged particles, for diverse pseudorapidity and transverse momentum ranges in Au + Au collisions at sqrt(s N 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. Keywords: Longitudinal scaling; Charge balance function; Boost-invariance; Nucleus–nucleus collisions
MIT Department
Massachusetts Institute of Technology. Laboratory for Nuclear Science
Terms of Use
Creative Commons Attribution 3.0 Unported license
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DOI of Published Version
https://doi.org/10.1016/j.physletb.2010.05.028
