System-size dependence of transverse momentum correlations at √s[subscript NN]=62.4 and 200 GeV at the BNL Relativistic Heavy Ion Collider
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Adamczyk-2013-System-size dependence of transverse momentum correlations.pdf
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Author(s)
Balewski, Jan T.
Betancourt, Michael Joseph
Corliss, Ross
Hays-Wehle, James Prewitt
Leight, William Axel
Redwine, Robert P.
Seele, J.
Steadman, Stephen G.
Stevens, J. R.
van Nieuwenhuizen, Gerrit Jan
Date Issued
June 2013
Journal
Physical Review C
Publisher
American Physical Society
Citation
Adamczyk, L., J. K. Adkins, G. Agakishiev, M. M. Aggarwal, Z. Ahammed, I. Alekseev, J. Alford, et al. “System-size dependence of transverse momentum correlations at sqrt[s_{NN}]=62.4 and 200 GeV at the BNL Relativistic Heavy Ion Collider.” Physical Review C 87, no. 6 (June 2013). © 2013 American Physical Society
Version
Final published version
Abstract
We present a study of the average transverse momentum (p[subscript t]) fluctuations and p[subscript t] correlations for charged particles produced in Cu+Cu collisions at midrapidity for √s[subscript NN]= 62.4 and 200 GeV. These results are compared with those published for Au+Au collisions at the same energies, to explore the system size dependence. In addition to the collision energy and system size dependence, the p[subscript t] correlation results have been studied as functions of the collision centralities, the ranges in p[subscript t], the pseudorapidity η, and the azimuthal angle ϕ. The square root of the measured p[subscript t] correlations when scaled by mean p[subscript t] is found to be independent of both colliding beam energy and system size studied. Transport-based model calculations are found to have a better quantitative agreement with the measurements compared to models which incorporate only jetlike correlations.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Laboratory for Nuclear Science
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DOI of Published Version
https://doi.org/10.1103/PhysRevC.87.064902
