Azimuthal anisotropy and correlations in the hard scattering regime at RHIC

Azimuthal anisotropy (v2) and two-particle angular correlations of high pT charged hadrons have been measured in Au+Au collisions at sqrt[sNN]=130 GeV for transverse momenta up to 6 GeV/c, where hard processes are expect
Azimuthal anisotropy (v2) and two-particle angular correlations of high pT charged hadrons have been measured in Au+Au collisions at sqrt[sNN]=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 pT partons. The monotonic rise of v2(pT) for pT<2 GeV/c is consistent with collective hydrodynamical flow calculations. At pT>3 GeV/c, a saturation of v2 is observed which persists up to pT=6 GeV/c.
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Metadaten
Author:Clemens Adler, Jens Berger, Thomas Dietel, Dominik Bernhard Flierl, Jens Sören Lange, Reinhard Stock, Christof Struck, et al., STAR Collaboration
URN:urn:nbn:de:hebis:30-18892
Document Type:Article
Language:English
Date of Publication (online):2005/10/14
Year of first Publication:2003
Publishing Institution:Univ.-Bibliothek Frankfurt am Main
Release Date:2005/10/14
Source:Phys. Rev. Lett. 90, 032301 (2003), ©2003 The American Physical Society, http://link.aps.org/abstract/PRL/v90/e032301
HeBIS PPN:192292811
Institutes:Physik
Dewey Decimal Classification:530 Physik
PACS-Classification:25.75.Ld Collective flow
Sammlungen:Universitätspublikationen
Licence (German):License Logo Veröffentlichungsvertrag für Publikationen

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