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Azimuthal anisotropy and correlations in the hard scattering regime at RHIC

Adler, C; Ahammed, Z; Allgower, C; Amonett, J; Anderson, BD; Anderson, M; Averichev, GS; ... STAR Collaboration, .; + view all (2003) Azimuthal anisotropy and correlations in the hard scattering regime at RHIC. PHYS REV LETT , 90 (3) , Article 032301. 10.1103/PhysRevLett.90.032301. Green open access

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Abstract

Azimuthal anisotropy (v(2)) and two-particle angular correlations of high p(T) charged hadrons have been measured in Au+Au collisions at roots(NN) = 130 GeV for transverse momenta up to 6 GeV/c, where hard processes are expected to contribute significantly. The two-particle angular correlations exhibit elliptic flow and a structure suggestive of fragmentation of high p(T) partons. The monotonic rise of v(2)(p(T)) for p(T) < 2 GeV/c is consistent with collective hydrodynamical flow calculations. At p(T) > 3 GeV/c, a saturation of v(2) is observed which persists up to p(T) = 6 GeV/c.

Type: Article
Title: Azimuthal anisotropy and correlations in the hard scattering regime at RHIC
Open access status: An open access version is available from UCL Discovery
DOI: 10.1103/PhysRevLett.90.032301
Publisher version: http://dx.doi.org/10.1103/PhysRevLett.90.032301
Language: English
Additional information: © 2003 The American Physical Society
Keywords: RELATIVISTIC NUCLEAR COLLISIONS, PLUS AU COLLISIONS, ELLIPTIC FLOW, ROOT-S(NN)=130 GEV, SIGNATURE, QCD, A+A
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
URI: https://discovery.ucl.ac.uk/id/eprint/1324901
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