Azimuthal di-hadron distributions from STAR

doi:10.1088/0954-3899/34/8/S142

Low- and intermediate-p_T di-hadron distributions in Au + Au collisions at $\sqrt{s_{\rm NN}}=200$ GeV from STAR

M J Horner et al 2007 J. Phys. G: Nucl. Part. Phys. 34 S995-S998 doi: 10.1088/0954-3899/34/8/S142

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M J Horner (for the STAR Collaboration)
Lawrence Berkeley National Laboratory, One Cyclotron Road, Berkeley, CA 94720, USA
Current address: UCT-CERN Research Centre, University of Cape Town, Rondebosch, 7701, South Africa
E-mail: mjhorner@lbl.gov

Abstract. We present a study of low- and intermediate-p_T correlated azimuthal angular distributions in Au+Au collisions at $\sqrt{s_{\rm NN}}=200 \hbox{ GeV}$ from STAR. The near side associated yields in Au+Au collisions are found to be strongly enhanced, due to contributions from large Δη. The enhancement is reduced for high p^trig_T. We show a strong broadening and enhancement of the away-side yield. The evolution of the away-side shape may be explained as the sum of a broad structure from bulk response and a narrow peak from jet fragmentation.

Print publication: Issue 8 (August 2007)
Received 29 January 2007
Published 17 July 2007

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Low- and intermediate-p_T di-hadron distributions in Au + Au collisions at $\sqrt{s_{\rm NN}}=200$ GeV from STAR

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Low- and intermediate-p_T di-hadron distributions in Au + Au collisions at $\sqrt{s_{\rm NN}}=200$ GeV from STAR