Heavy quark energy loss in the Bayesian-inference-improved CUJET model
Abstract
We compute jet quenching observables--the nuclear modification factor RAA and elliptic anisotropy coefficient v2--for open-heavy flavor mesons with high transverse momentum in an improved CUJET model, in which the strong coupling parameter as well as the temperature-dependent fraction of chromo-magneto monopoles are extracted through Bayesian inference using high-pT light-hadron RAA and v2 measurements from RHIC and the LHC. We show in this work that such a Bayesian-inference-improved CUJET model provides a good description of available high-pT charm- and bottom-hadron observables based on the same posterior parameters. The corresponding heavy-quark spatial diffusion parameter, 2πT Ds, is also computed, which is broadly consistent with current phenomenological and lattice-QCD constraints. These results support a universal description for the medium modification of high-pT light- and heavy-flavor energy loss and indicate an important role played by the chromo-magnetic degrees of freedom near the confinement transition region of quantum chromodynamics (QCD).
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BibTeX
@misc{guo2026heavy,
title = {{Heavy quark energy loss in the Bayesian-inference-improved CUJET model}},
author = {Yu Guo and Jinfeng Liao and Shuzhe Shi},
howpublished = {arXiv},
year = {2026},
month = sep,
doi = {10.48550/arxiv.2609.37729},
eprint = {2609.37729},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2609.37729},
note = {CC BY 4.0},
}
RIS
TY - UNPB
TI - Heavy quark energy loss in the Bayesian-inference-improved CUJET model
AU - Yu Guo
AU - Jinfeng Liao
AU - Shuzhe Shi
PY - 2026
DA - 2026/09/29
PB - arXiv
DO - 10.48550/arxiv.2609.37729
UR - https://arxiv.org/abs/2609.37729
AB - We compute jet quenching observables--the nuclear modification factor R_AA and elliptic anisotropy coefficient v_2--for open-heavy flavor mesons with high transverse momentum in an improved CUJET model, in which the strong coupling parameter as well as the temperature-dependent fraction of chromo-magneto monopoles are extracted through Bayesian inference using high-p_T light-hadron R_AA and v_2 measurements from RHIC and the LHC. We show in this work that such a Bayesian-inference-improved CUJET model provides a good description of available high-p_T charm- and bottom-hadron observables based on the same posterior parameters. The corresponding heavy-quark spatial diffusion parameter, 2πT D_s, is also computed, which is broadly consistent with current phenomenological and lattice-QCD constraints. These results support a universal description for the medium modification of high-p_T light- and heavy-flavor energy loss and indicate an important role played by the chromo-magnetic degrees of freedom near the confinement transition region of quantum chromodynamics (QCD).
ER -