Dihadron Correlation in Jets Produced in Heavy-Ion Collisions

Abstract

The difference between the structures of jets produced in heavy-ion and hadronic collisions can best be exhibited in the correlations between particles within those jets. We study the dihadron correlations in jets in the framework of parton recombination. Two types of triggers, ${\pi }^{+}$ and proton, are considered. It is shown that the recombination of thermal and shower partons makes the most important contribution to the spectra of the associated particles at intermediate $p_T$. In $pp$ collisions the only significant contribution arises from shower-shower recombination, which is negligible in heavy-ion collisions. Moments of the associated-particle distributions are calculated to provide simple summary of the jet structures for easy comparison with experiments.

24 pages in Latex + 5 figures

References in corpus (7)

• Measurement of Jet Modification at RHIC
• The dihadron fragmentation function and its evolution
• Final-State Interaction as the Origin of the Cronin Effect
• Proton Production in d+Au Collisions and the Cronin Effect
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Cited by in corpus (18)

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• Jet Structure from Dihadron Correlations in d+Au collisions at sqrt(s_NN) = 200 GeV
• The QCD confinement transition: hadron formation
• Associated Particle Distributions in Jets Produced in Heavy-Ion Collisions
• p/pi Ratio in Di-Hadron Correlations
• Phase-Space Coalescence for heavy and light quarks at RHIC
• Hadron Correlation in Jets on the Near and Away Sides of High-p_T Triggers in Heavy-ion Collisions
• Parton and Hadron Correlations in Jets
• Quark Matter 2005: Experimental Conference Summary
• Particles Associated with Omega Produced at Intermediate p_T
• Autocorrelation of Hadrons in Jets Produced in Heavy-Ion Collisions
• Jet properties from ${\pi }^{\pm }$ - $h^{\pm }$ correlation in $p+p$ and $d$+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV
• Correlations at intermediate $p_T$