Jet-hadron correlations in STAR

Abstract

Advancements in full jet reconstruction have made it possible to use jets as triggers in azimuthal angular correlations to study the modification of hard-scattered partons in the medium created in ultrarelativistic heavy-ion collisions. This increases the range of parton energies accessible in these analyses and improves the signal-to-background ratio compared to dihadron correlations. Results of a systematic study of jet-hadron correlations in central Au-Au collisions at sqrt(s_NN) = 200 GeV are indicative of a broadening and softening of jets which interact with the medium. Furthermore, jet-hadron correlations suggest that the suppression of the associated hadron yield at high-pT is balanced in large part by low-pT enhancement.

4 pages, 2 figures, proceedings for Quark Matter 2011

References in corpus (3)

• The theory and phenomenology of perturbative QCD based jet quenching
• Prospects of medium tomography using back-to-back hadron correlations
• Parton Energy Loss in Strongly Coupled AdS/CFT

Cited by in corpus (7)

• Shining a Gluon Beam Through Quark-Gluon Plasma
• Biased Showers - a common conceptual Framework for the Interpretation of High P_T Observables in Heavy-Ion Collisions
• A Theoretical Assessment of Jet-Hadron Correlations
• STAR Highlights
• The high energy frontier of ultrarelativistic nucleus-nucleus collisions
• Jets and jet-like correlations studies from STAR
• Proton/Pion ratios in Δϕwith respect to a jet in sqrt{s_{NN}} =200 GeV Au+Au collisions at STAR