Initial stage jet momentum broadening in tBLFQ formalism

We study the momentum broadening of a high-energy quark jet in the large density gluon medium created right after the collision of two ultrarelativistic heavy nuclei, the Glasma. Previous Glasma studies modeled the jet as a classical probe particle, for which position and momentum are simultaneously determined. In this work, we use the light-front QCD Hamiltonian formalism to treat the jet as a fully quantum state. We compute its real-time evolution while propagating through the Glasma classical background fields, which act as an interaction potential in the quantum evolution of the jet. We present results for the momentum broadening and jet quenching parameter of a jet at mid-rapidity, with special emphasis on the anisotropies between the longitudinal and transverse directions relative to the collision axis. In addition, we compare our results to classical calculations, and initiate a study of the distinction between kinetic and canonical momentum in the context of jet momentum broadening.

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Publication Details

Journal
EPJ Web of Conferences
Published
2025-01-01
DOI
https://doi.org/10.1051/epjconf/202533902008
Primary Topic
High-Energy Particle Collisions Research
Type
article
Field-Weighted Citation Impact
0.00

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article

Initial stage jet momentum broadening in tBLFQ formalism

Meijian Li, Carlos José Einicker Lamas, T. Lappi, Dana Avramescu et al.
EPJ Web of Conferences
High-Energy Particle Collisions Research
article

Initial stage jet momentum broadening in tBLFQ formalism

Meijian Li, Carlos José Einicker Lamas, T. Lappi, Dana Avramescu, Carlos A. Salgado
article en

Abstract

We study the momentum broadening of a high-energy quark jet in the large density gluon medium created right after the collision of two ultrarelativistic heavy nuclei, the Glasma. Previous Glasma studies modeled the jet as a classical probe particle, for which position and momentum are simultaneously determined. In this work, we use the light-front QCD Hamiltonian formalism to treat the jet as a fully quantum state. We compute its real-time evolution while propagating through the Glasma classical background fields, which act as an interaction potential in the quantum evolution of the jet. We present results for the momentum broadening and jet quenching parameter of a jet at mid-rapidity, with special emphasis on the anisotropies between the longitudinal and transverse directions relative to the collision axis. In addition, we compare our results to classical calculations, and initiate a study of the distinction between kinetic and canonical momentum in the context of jet momentum broadening.

EPJ Web of ConferencesVol. 339
University of Helsinki (FI), Universidade de Santiago de Compostela (ES), Helsinki Institute of Physics (FI), University of Jyväskylä (FI)
Xunta de Galicia, European Regional Development Fund, Agencia Estatal de Investigación
Openalex Percentile: Top 85%
High-Energy Particle Collisions Research
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