Incident energy dependence of pt correlations at RHIC - INSPIRE

DataBETA

Incident energy dependence of pt correlations at RHIC

STAR

Collaboration

Apr, 2005

6 pages

Published in:

Phys.Rev.C 72 (2005) 044902

e-Print:

nucl-ex/0504031 [nucl-ex]

DOI:

10.1103/PhysRevC.72.044902

Experiments:

BNL-RHIC-STAR

View in:

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Abstract:

We present results for two-particle transverse momentum correlations, , as a function of event centrality for Au+Au collisions at sqrt(sNN) = 20, 62, 130, and 200 GeV at the Relativistic Heavy Ion Collider. We observe correlations decreasing with centrality that are similar at all four incident energies. The correlations multiplied by the multiplicity density increase with incident energy and the centrality dependence may show evidence of processes such as thermalization, minijet production, or the saturation of transverse flow. The square root of the correlations divided by the event-wise average transverse momentum per event shows little or no beam energy dependence and generally agrees with previous measurements at the Super Proton Synchrotron.

Note:

7 pages, 4 figures, RevTeX, final version as published in Physical Review C Journal-ref: J. Adams et al. (STAR Collaboration), Phys. Rev. C72, 044902 (2005) DOI: 10.1103/PhysRevC.72.044902

25.75.Gz
nucleus nucleus: colliding beams
scattering: heavy ion
gold
hadron: multiple production
correlation: two-particle
transverse momentum: correlation
correlation: short-range
impact parameter: dependence
energy dependence

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