31 March 2025 to 4 April 2025
CERN
Europe/Zurich timezone

Initial stage jet momentum broadening in a Light-Front Hamiltonian approach

2 Apr 2025, 16:15
15m
4/3-006 - TH Conference Room (CERN)

4/3-006 - TH Conference Room

CERN

110
Show room on map

Speaker

Carlos Lamas (IGFAE-USC)

Description

We study the momentum broadening of a high energy quark jet in the high-density gluon medium created right after the collision of two ultrarrelativistic heavy nuclei, the Glasma. Previous Glasma studies consider the jet as a classical probe particle, for which position and momentum are simultaneously determined. In this talk, we use the light-front QCD Hamiltonian formalism to treat the jet as a fully quantum state and compute its real-time evolution while propagating through the Glasma classical background fields, that appear as an interaction potential in the quantum evolution of the jet. We present results for the momentum broadening and jet quenching parameter, $\hat{q}$, experimented by a jet at mid-rapidity, paying special attention to the anisotropies in the momentum broadening between the longitudinal and transverse directions with respect to the collision axis. We enphasize the similarities and differences with the classical calculations that have been carried out so far.

Author

Carlos Lamas (IGFAE-USC)

Presentation materials