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.

arXiv comment4 pages, 3 figures

References in corpus (10)

• Disappearance of back-to-back high $p_T$ hadron correlations in central Au+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV
• Evidence from d+Au measurements for final-state suppression of high $p_T$ hadrons in Au+Au collisions at RHIC
• Azimuthal anisotropy in Au+Au collisions at sqrtsNN = 200 GeV
• Distributions of Charged Hadrons Associated with High Transverse Momentum Particles in pp and Au+Au Collisions at sqrt(s_NN)=200 GeV
• Elliptic flow from two- and four-particle correlations in Au + Au collisions at sqrt{s_{NN}} = 130 GeV
• Modifications to Di-Jet Hadron Pair Correlations in Au+Au Collisions at sqrt(s_NN) = 200 GeV
• 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
• Mach cones in an evolving medium
• Non trivial generalizations of the Schwinger pair production result II

Cited by in corpus (24)

• Parton shower evolution in a 3-d hydrodynamical medium
• Transverse Radial Flow Effects on Two- and Three-Particle Angular Correlations
• Jet quenching
• The Fluid Nature of Quark-Gluon Plasma
• A closer look at the influence of tubular initial conditions on two-particle correlations
• Methods for the Study of Transverse Momentum Differential Correlations
• Universality of the diffusion wake in the gauge-string duality
• Mach Cones in Quark Gluon Plasma
• Hydrodynamics: Fluctuating Initial Conditions and Two-particle Correlations
• Understanding jet quenching and medium response with di-hadron correlation
• Energy deposition in hard dihadron triggered events in heavy-ion collisions
• Two-particle correlations at high-energy nuclear collisions, peripheral-tube model revisited
• Forward- and Mid-Rapidity Jet-like correlations
• Non-photonic electron-hadron correlations at STAR
• In-Medium Properties of Jets
• Three-particle cumulant Study of Conical Emission
• Baryon to Meson Ratios on the Near and Away-Side of Jets and their Centrality Dependence at STAR
• STAR Results on High Transverse Momentum, Heavy Flavor and Electromagnetic Probes
• Successes and failures with hard probes
• Identification of flow-background to subtract in jet-like azimuthal correlation
• Quark Matter 2006: high-pT and jets
• High pT and jet physics from RHIC to LHC
• Hard Probes are the "Meridian Line", sQGP is the Forbidden City
• Jet Studies in STAR via Di-jet Triggered (2+1) Multi-hadron Correlations