Speaker
Description
We present SUBA-Jet, a newly constructed framework for jet and medium production in heavy-ion collisions at ultra-relativistic energies [1]. The framework is developed in a spirit similar to JETSCAPE, and our aim is to simulate the complete dynamics of heavy-ion collisions, with jet and medium hadron production combined.
The development of a jet starts with a seed parton with high virtuality, currently generated by Pythia 8. The parton splits, thus developing a jet shower. The jet partons experience collisional and radiative energy loss, and the latter is simulated via coherent bremsstrahlung. The coherence is achieved by increasing the phase of the trial gluons through elastic scatterings with the medium. Above a phase threshold, the trial gluon will be realised and can produce coherent radiation themselves.
The evolution of the medium starts from an initial state provided by TrENTo model, with subsequent viscous fluid dynamical expansion, particlization and final-state hadronic scattering and resonance decays via SMASH cascade.
In this talk we present i) construction of the framework and its ingredients, ii) benchmark of the coherent jet energy loss and comparison with BDMPS-Z spectra, and iii) benchmark of jet R_AA in a scenario with realistic production points of the jet hadrons and realistic background medium representing a system formed in Pb-Pb collision at 5.02 TeV LHC energy.
[1] IK, A. Lind, M. Rohrmoser, J. Aichelin, P.-B. Gossiaux, arXiv: 2404.14579 [hep-ph]
| Category | Theory |
|---|
