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DOE OSTI · 21419577

Jets propagation through a hadron-string medium

Konchakovski, V P·Bratkovskaya, E L·Cassing, W·Gorenstein, M I
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Abstract

Di-jet correlations in nucleus-nucleus collisions are studied within the hadron-string-dynamics (HSD) transport approach taking into account the reaction of the medium on the jet energy loss nonperturbatively. A comparison with the STAR and PHENIX data in central Au+Au collisions at the Relativistic Heavy Ion Collider energy {radical}(s)=200 GeV is performed differentially (i.e., with respect to correlations in azimuthal angle {Delta}{phi} and pseudorapidity {Delta}{eta}). The HSD results do not show enough suppression for the 'away-side' jets in accordance with earlier perturbative studies. Furthermore, the 'Mach-cone' structure for the angle distribution in the away-side jet as well as 'ridge' long-range rapidity correlations in the 'near-side' jet - observed by the STAR, PHENIX, and PHOBOS Collaborations - are not seen in the HSD results, thus suggesting a partonic origin.

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72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS73 NUCLEAR PHYSICS AND RADIATION PHYSICSACCELERATORSATOM COLLISIONSATOM-ATOM COLLISIONSBARYON-BARYON INTERACTIONSBROOKHAVEN RHICCOLLISIONSCOMPARATIVE EVALUATIONSCORRELATIONSDISTRIBUTIONELEMENTARY PARTICLESELEMENTSENERGY LOSSESENERGY RANGEEVALUATIONGEV RANGEGEV RANGE 100-1000GOLDHADRON-HADRON INTERACTIONSHADRONSHEAVY ION ACCELERATORSINTERACTIONSLOSSESMETALSNUCLEINUCLEON-NUCLEON INTERACTIONSPARTICLE INTERACTIONSPARTICLE PROPERTIESPARTICLE RAPIDITYSTORAGE RINGSTRANSITION ELEMENTSTRANSPORT THEORY

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Konchakovski, V P, Bratkovskaya, E L, Cassing, W, Gorenstein, M I. 2010-09-15. Jets propagation through a hadron-string medium. https://doi.org/10.1103/physrevc.82.037902

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