On the momentum broadening of in-medium jet evolution using a light-front Hamiltonian approach
Abstract
Following the non-perturbative light-front Hamiltonian formalism developed in our preceding work [Phys.Rev.D 104 (2021) 5, 056014], we investigate the momentum broadening of a quark jet inside a SU(3) colored medium. We perform the numerical simulation of the real-time jet evolution in Fock spaces of a single quark, a quark-gluon state, and coupled quark- and quark-gluon states at various jet momenta and medium densities. With the obtained jet light-front wavefunction, we extract the jet transverse momentum distribution, the quenching parameter, and the gluon emission rate. We analyze the dependence of momentum broadening on , medium density, color configuration, spatial correlation, and medium-induced gluon emission. For comparison, we also derive analytically the expectation value of the transverse momentum of a quark-gluon state in any color configuration and in an arbitrary spatial distribution in the eikonal limit. This work can help understand jet momentum broadening in the non-eikonal regime.
Keywords
Cite
@article{arxiv.2305.12490,
title = {On the momentum broadening of in-medium jet evolution using a light-front Hamiltonian approach},
author = {Meijian Li and Tuomas Lappi and Xingbo Zhao and Carlos A. Salgado},
journal= {arXiv preprint arXiv:2305.12490},
year = {2023}
}