Jet quenching and its substructure dependence due to color decoherence
4 affiliations
- 1Fudan University
- 2NSFC and Fudan University
- 3Universidade de Santiago de Compostela
- 4Axencia Galega de Innovación (GAIN)
Abstract
A bstract : Motivated by color coherence and decoherence effects in the QCD medium, we propose a theoretical framework that combines vacuum-like emissions and medium-induced radiation to study jet quenching and its dependence on jet cone sizes and substructure. In our approach, a jet produced at a hard scale Q first undergoes vacuum-like evolution, as described by the well-established generating-function method in the double logarithmic approximation. These vacuum-like emissions generate subjets at an infrared momentum scale Q ₀ . Each subjet then experiences medium-induced energy loss as described by the BDMPS-Z formalism. By modeling the QCD bulk medium using OSU (2+1)-dimensional viscous hydrodynamics and treating Q ₀ together with the jet-quenching parameters at the initial proper time of the hydrodynamic evolution as free parameters, our approach provides a very good description of the inclusive jet modification factor R AA for large-radius jets and its dependence on jet substructure in 0–10% PbPb collisions at √(sNN) s NN = 5.02 TeV, as measured by the ATLAS experiment.
Related
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BibTeX
@article{duan2026quenching,
title = {{Jet quenching and its substructure dependence due to color decoherence}},
author = {Xiang-Pan Duan and Lin Chen and Guo-Liang Ma and Carlos A. Salgado and Bin Wu},
journal = {Journal of High Energy Physics},
year = {2026},
month = oct,
doi = {10.1007/jhep10(2026)177},
url = {https://link.springer.com/article/10.1007/JHEP10(2026)177},
note = {CC BY 4.0},
}
RIS
TY - JOUR
TI - Jet quenching and its substructure dependence due to color decoherence
AU - Xiang-Pan Duan
AU - Lin Chen
AU - Guo-Liang Ma
AU - Carlos A. Salgado
AU - Bin Wu
PY - 2026
DA - 2026/10/15
JO - Journal of High Energy Physics
DO - 10.1007/jhep10(2026)177
UR - https://link.springer.com/article/10.1007/JHEP10(2026)177
AB - A bstract : Motivated by color coherence and decoherence effects in the QCD medium, we propose a theoretical framework that combines vacuum-like emissions and medium-induced radiation to study jet quenching and its dependence on jet cone sizes and substructure. In our approach, a jet produced at a hard scale Q first undergoes vacuum-like evolution, as described by the well-established generating-function method in the double logarithmic approximation. These vacuum-like emissions generate subjets at an infrared momentum scale Q ₀ . Each subjet then experiences medium-induced energy loss as described by the BDMPS-Z formalism. By modeling the QCD bulk medium using OSU (2+1)-dimensional viscous hydrodynamics and treating Q ₀ together with the jet-quenching parameters at the initial proper time of the hydrodynamic evolution as free parameters, our approach provides a very good description of the inclusive jet modification factor R AA for large-radius jets and its dependence on jet substructure in 0–10% PbPb collisions at √(s_NN) s NN = 5.02 TeV, as measured by the ATLAS experiment.
SN - 1029-8479
ER -