6533b7d2fe1ef96bd125e0ae
RESEARCH PRODUCT
Monte Carlo Simulation for Elastic Energy Loss of Hard Partons in a Hydrodynamical Background
Kari J. EskolaKari J. EskolaThorsten RenkThorsten RenkJussi AuvinenJussi AuvinenHannu HolopainenHannu Holopainensubject
Quantum chromodynamicsPhysicsNuclear and High Energy PhysicsParticle physicsLarge Hadron ColliderScatteringMonte Carlo methodNuclear TheoryHigh Energy Physics::PhenomenologyPerturbative QCDFOS: Physical sciencesPartonHigh Energy Physics - PhenomenologyPionHigh Energy Physics - Phenomenology (hep-ph)Quark–gluon plasmaHigh Energy Physics::ExperimentNuclear Experimentdescription
We have developed a Monte Carlo simulation describing the $2 \rightarrow 2$ scatterings of perturbatively produced, non-eikonally propagating high-energy partons with the quarks and gluons of the expanding QCD medium created in ultrarelativistic heavy ion collisions. The partonic scattering rates are computed in leading-order perturbative QCD (pQCD), while three different hydrodynamical scenarios are used to model the strongly interacting medium. We compare our results and tune the model with the neutral pion suppression observed in $\sqrt{s_{NN}}=200$ GeV Au+Au collisions at the BNL-RHIC. We find the incoherent nature of elastic energy loss incompatible with the measured angular dependence of the suppression. The effects of the initial state density fluctuations of the bulk medium are found to be small. Also the extrapolation from RHIC to the LHC is discussed.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2011-06-21 |