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Jet-Hadron Correlations in sqrt{s_{NN}} = 200 GeV Au+Au and p+p Collisions

Abstract : Azimuthal angular correlations of charged hadrons with respect to the axis of a reconstructed (trigger) jet in Au+Au and p+p collisions at $\sqrt{s_{NN}} = 200$ GeV in STAR are presented. The trigger jet population in Au+Au collisions is biased towards jets that have not interacted with the medium, allowing easier matching of jet energies between Au+Au and p+p collisions while enhancing medium effects on the recoil jet. The associated hadron yield of the recoil jet is significantly suppressed at high transverse momentum ($p_{T}^{assoc}$) and enhanced at low $p_{T}^{assoc}$ in Au+Au collisions, which is indicative of medium-induced parton energy loss in ultrarelativistic heavy-ion collisions.
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Contributor : Sylvie Flores <>
Submitted on : Wednesday, April 3, 2013 - 7:17:06 AM
Last modification on : Thursday, February 7, 2019 - 3:18:41 PM

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L. Adamczyk, W. Borowski, S. Kabana. Jet-Hadron Correlations in sqrt{s_{NN}} = 200 GeV Au+Au and p+p Collisions. Physical Review Letters, American Physical Society, 2014, 112, pp.122301. ⟨10.1103/PhysRevLett.112.122301⟩. ⟨in2p3-00807102⟩



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