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We report the first three-particle coincidence measurement in pseudorapidity (Delta eta) between a high transverse momentum (p(perpendicular to)) trigger particle and two lower p(perpendicular to) associated particles within azimuth |Delta phi| <0.7 in root s(NN) = 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.
|Journal||Physical Review Letters|
|Publication status||Published - 1 Jul 2010|
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- 1 Finished
Ultra-relativitic Heavy Ion Collisions - Application for Bridging Support
SCIENCE & TECHNOLOGY FACILITIES COUNCIL
1/03/08 → 31/05/10
Project: Research Councils