Three-Particle Coincidence of the Long Range Pseudorapidity Correlation in High Energy Nucleus-Nucleus Collisions
Author(s)Balewski, Jan T.; Betancourt, Michael Joseph; Corliss, Ross Cameron; Milner, Richard G.; Hays-Wehle, James Prewitt; Hoffman, A. M.; Jones, Christopher LaDon; Kocoloski, Adam Philip; Leight, William Axel; Redwine, Robert P.; Sakuma, Tai; Seele, Joseph Patrick; Surrow, Bernd; van Nieuwenhuizen, Gerrit Jan; Walker, Matthew H.; ... Show more Show less
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We report the first three-particle coincidence measurement in pseudorapidity (delta eta) between a high transverse momentum (p⊥) trigger particle and two lower p⊥ associated particles within azimuth |deltaphi|<0.7 in [sqrt]sNN=200 GeV d+Au and Au+Au collisions. Charge ordering properties are exploited to separate the jetlike component and the ridge (long range delta eta correlation). The results indicate that the correlation of ridge particles are uniform not only with respect to the trigger particle but also between themselves event by event in our measured delta eta. In addition, the production of the ridge appears to be uncorrelated to the presence of the narrow jetlike component.
DepartmentBates Linear Accelerator Center; Massachusetts Institute of Technology. Department of Physics; Massachusetts Institute of Technology. Laboratory for Nuclear Science
Physical Review Letters
American Physical Society
STAR Collaboration et al. “Three-Particle Coincidence of the Long Range Pseudorapidity Correlation in High Energy Nucleus-Nucleus Collisions.” Physical Review Letters 105.2 (2010): 022301. © 2010 The American Physical Society.
Final published version