6533b862fe1ef96bd12c63e5
RESEARCH PRODUCT
Latest results from the EbyE NLO EKRT model
Kari J. EskolaKari J. EskolaRisto PaatelainenKimmo TuominenHarri Niemisubject
Nuclear and High Energy PhysicsParticle physicsNuclear TheoryHadronFOS: Physical sciences01 natural sciences114 Physical sciencesPhysics::Fluid DynamicsNuclear Theory (nucl-th)High Energy Physics - Phenomenology (hep-ph)0103 physical sciences010306 general physicsNuclear ExperimentQCD matterPhysicsLarge Hadron Colliderta114010308 nuclear & particles physicssaturationElliptic flowHigh Energy Physics::PhenomenologyPerturbative QCDObservableMultiplicity (mathematics)heavy-ion collisionsHigh Energy Physics - Phenomenologynext-to-leading order perturbative QCD calculationsHigh Energy Physics::ExperimentKnudsen numberdissipative fluid dynamicsheavy-ion collisions next-to-leading order perturbative QCD calculations saturation dissipative fluid dynamicsdescription
We review the results from the event-by-event next-to-leading order perturbative QCD + saturation + viscous hydrodynamics (EbyE NLO EKRT) model. With a simultaneous analysis of LHC and RHIC bulk observables we systematically constrain the QCD matter shear viscosity-to-entropy ratio eta/s(T), and test the initial state computation. In particular, we study the centrality dependences of hadronic multiplicities, pT spectra, flow coefficients, relative elliptic flow fluctuations, and various flow-correlations in 2.76 and 5.02 TeV Pb+Pb collisions at the LHC and 200 GeV Au+Au collisions at RHIC. Overall, our results match remarkably well with the LHC and RHIC measurements, and predictions for the 5.02 TeV LHC run are in an excellent agreement with the data. We probe the applicability of hydrodynamics via the average Knudsen numbers in the space-time evolution of the system and viscous corrections on the freeze-out surface.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2017-11-01 | Nuclear Physics A |