Physics – Nuclear Physics – Nuclear Experiment
Scientific paper
2003-10-06
Phys.Rev.Lett.93:092301,2004
Physics
Nuclear Physics
Nuclear Experiment
325 authors, 6 pages text, 3 figures, RevTeX 4. Minor revisions to address concerns of referees. Accepted for publication by P
Scientific paper
10.1103/PhysRevLett.93.092301
Event-by-event fluctuations of the average transverse momentum of produced particles near mid-rapidity have been measured by the PHENIX Collaboration in sqrt(s_NN)=200 GeV Au+Au and p+p collisions at the Relativistic Heavy Ion Collider. The fluctuations are observed to be in excess of the expectation for statistically independent particle emission for all centralities. The excess fluctuations exhibit a dependence on both the centrality of the collision and on the transverse momentum window over which the average is calculated. Both the centrality and p_T dependence can be well reproduced by a simulation of random particle production with the addition of contributions from hard scattering processes.
Adler Susanne
the PHENIX Collaboration
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