System-size dependence of transverse momentum correlations at √s[subscript NN]=62.4 and 200 GeV at the BNL Relativistic Heavy Ion Collider
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; ... Show more Show less
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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.
Date issued
2013-06Department
Massachusetts Institute of Technology. Department of Physics; Massachusetts Institute of Technology. Laboratory for Nuclear ScienceJournal
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
ISSN
0556-2813
1089-490X