Di-Hadron Correlations with Identified Leading Hadrons in 200 GeV Au+Au and d+Au Collisions at STAR

Abstract

The STAR collaboration presents for the first time two-dimensional di-hadron correlations with identified leading hadrons in 200 GeV central Au+Au and minimum-bias d+Au collisions to explore hadronization mechanisms in the quark gluon plasma. The enhancement of the jet-like yield for leading pions in Au+Au data with respect to the d+Au reference and the absence of such an enhancement for leading non-pions (protons and kaons) are discussed within the context of a quark recombination scenario. The correlated yield at large angles, specifically in the \emph{ridge region}, is found to be significantly higher for leading non-pions than pions. The consistencies of the constituent quark scaling, azimuthal harmonic model and a mini-jet modification model description of the data are tested, providing further constraints on hadronization.

References in corpus (13)

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• Strange and Multi-strange Particle Production in Au+Au Collisions at $\sqrt{s_{NN}}$ = 62.4 GeV
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Cited by in corpus (9)

• Review of Jet Measurements in Heavy Ion Collisions
• System dependence of away-side broadening and $\alpha$-clustering light nuclei structure effect in dihadron azimuthal correlations
• Pseudorapidity and transverse momentum dependence of flow harmonics in pPb and PbPb collisions
• Measurement of D${}^0$-meson + hadron two-dimensional angular correlations in Au+Au collisions at $\sqrt{s_{\mathrm{NN}}}=$ 200 GeV
• Effect of radial flow on two particle correlations with identified triggers at intermediate $p_T$ in p-Pb collisions at $\sqrt{s_{NN}}=$ 5.02 TeV
• Near-side azimuthal and pseudorapidity correlations using neutral strange baryons and mesons in d+Au, Cu+Cu and Au+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV
• Phenomenological models of two-particle correlation distributions on transverse momentum in relativistic heavy-ion collisions
• Testing of coalescence mechanism in high energy heavy ion collisions using two-particle correlations with identified particle trigger
• Novel experimental probes of QCD in SIDIS and $e^{+}{e}^{-}$ annihilation