In-medium dressed quark evolution in a light-front Hamiltonian approach

by Meijian Li (University of Santiago de Compostela)

Tuesday 19 Nov 2024, 10:00 → 11:00 Europe/Helsinki

In this talk, I present a non-perturbative light-front Hamiltonian approach to investigate the scattering and gluon emission of dressed quark states propagating through an SU(3) colored medium field. In the context of deep inelastic scattering and heavy ion collision scenarios, we consider a quark originating far outside the medium, dressed by intrinsic gluons before entry. We solve the wavefunction of the dressed quark state by diagonalizing the QCD Hamiltonian in vacuum in a $|q\rangle+|qg\rangle$ Fock space, with implementing the sector-dependent mass renormalization scheme. We then numerically simulate the real-time evolution of this dressed quark state at various medium densities, examining key observables such as jet momentum broadening, cross section, and gluon emission rates. This study provides a systematic, non-perturbative framework for analyzing in-medium jet evolution.

JYUQCD_seminar_20241119.pdf