Low- and Intermediate-p${}_T$ Di-hadron Distributions in Au+Au Collisions at $\sqrt{s_{NN}}=200$ GeV from STAR

Abstract

We present a study of low- and intermediate-p${}_T$ correlated azimuthal angular distributions in Au+Au collisions at $\sqrt{s_{NN}}=200\mathrm{GeV}$ from STAR. The near-side associated yields in Au+Au collisions are found to be strongly enhanced, due to contributions from large $\Delta \eta$. The enhancement is reduced for high \pTtrig. 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.

4 pages, 3 figures

References in corpus (2)

• Direct observation of dijets in central Au+Au collisions at sqrt(s_NN) = 200 GeV
• Intra-jet correlations of high-$p_t$ hadrons from STAR

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