Speaker
Daria Prokhorova
(Tsinghua University)
Description
In this work, we employ heavy-flavor (HF) jet tomography to probe the short-lived far-from-equilibrium medium created in proton-proton collisions at LHC energies. On an event-by-event basis, HF quark pairs produced in hard scattering via PYTHIA are embedded into a color string model and interact with the evolving medium through both collisional (based on Thoma-Gyulassy elastic cross-section) and radiative (DGLV in-medium gluon emission) energy-loss mechanisms. By analyzing the momentum modifications of charm and bottom quarks, we find that energy loss strongly depends on the degree of medium isotropization. The resulting final-state HF hadron spectra are contrasted with predictions from equilibrated QGP models such as EPOS4HQ.
Authors
Daria Prokhorova
(Tsinghua University)
Shuzhe Shi
(Tsinghua University)
Co-author
Evgeny Andronov
(St. Petersburg State University)