6533b82ffe1ef96bd129533b
RESEARCH PRODUCT
Hard and soft probe - medium interactions in a 3D hydro+micro approach at RHIC
Chiho NonakaJoerg RuppertThorsten RenkThorsten RenkSteffen A. Basssubject
QuenchingPhysicsNuclear and High Energy PhysicsNuclear Theory010308 nuclear & particles physicsScatteringPlane (geometry)Radiant energyFOS: Physical sciencesPartonStrangenessCollision01 natural sciencesBaryonNuclear physicsNuclear Theory (nucl-th)0103 physical sciences010306 general physicsNuclear Experimentdescription
We utilize a 3D hybrid hydro+micro model for a comprehensive and consistent description of soft and hard particle production in ultra-relativistic heavy-ion collisions at RHIC. In the soft sector we focus on the dynamics of (multi-)strange baryons, where a clear strangeness dependence of their collision rates and freeze-out is observed. In the hard sector we study the radiative energy loss of hard partons in a soft medium in the multiple soft scattering approximation. While the nuclear suppression factor $R_{AA}$ does not reflect the high quality of the medium description (except in a reduced systematic uncertainty in extracting the quenching power of the medium), the hydrodynamical model also allows to study different centralities and in particular the angular variation of $R_{AA}$ with respect to the reaction plane, allowing for a controlled variation of the in-medium path-length.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2007-02-26 |