Measurement of nonrandom event-by-event fluctuations of average transverse momentum in √sNN=200 GeV Au+Au and p+p Collisions

Adler, S. S. ; Kapoor, S. S. ; et., al (2004) Measurement of nonrandom event-by-event fluctuations of average transverse momentum in √sNN=200 GeV Au+Au and p+p Collisions Physical Review Letters, 93 (9). 092301_1-092301_6. ISSN 0031-9007

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Official URL: http://prl.aps.org/abstract/PRL/v93/i9/e092301

Related URL: http://dx.doi.org/10.1103/PhysRevLett.93.092301

Abstract

Event-by-event fluctuations of the average transverse momentum of produced particles near midrapidity have been measured by the PHENIX Collaboration in √sNN=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 pT range over which the average is calculated. Both the centrality and pT dependence can be well reproduced by a simulation of random particle production with the addition of contributions from hard-scattering processes.

Item Type:Article
Source:Copyright of this article belongs to American Physical Society.
ID Code:16691
Deposited On:15 Nov 2010 13:26
Last Modified:17 May 2016 01:25

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