Improved linear Boltzmann transport model for hadron and jet suppression in ultra-relativistic heavy-ion collisions
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arXiv
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| Autores principales: | , , , |
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| Formato: | Preprint |
| Publicado: |
2026
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| _version_ | 1866915790766211072 |
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| author | Dang, Yichao Xing, Wen-Jing Cao, Shanshan Qin, Guang-You |
| author_facet | Dang, Yichao Xing, Wen-Jing Cao, Shanshan Qin, Guang-You |
| contents | Jets serve as powerful tomographic probes of the quark-gluon plasma (QGP) created in relativistic heavy-ion collisions. While the expanding landscape of jet observables reveals multi-faceted aspects of jet-medium interactions, a precise and simultaneous description of the nuclear modification factors of hadrons and full jets still remains a challenge for theoretical models. In this work, we present two essential improvements to the linear Boltzmann transport (LBT) model to bridge this gap. First, instead of implementing in-medium parton transport after vacuum parton showers complete, we introduce a medium scale at which the parton transport is inserted into the vacuum parton showers, providing a more physical picture of parton-QGP interactions. Second, we incorporate color flow information into the LBT model, enabling string connections between partons whose configurations are correlated with the medium-modified parton showers before hadronization. We demonstrate that both improvements alter the predicted ratio of hadron to jet quenching, leading to a satisfactory description of the nuclear modification factors of hadrons and jets with different flavors within a unified framework. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2602_10395 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Improved linear Boltzmann transport model for hadron and jet suppression in ultra-relativistic heavy-ion collisions Dang, Yichao Xing, Wen-Jing Cao, Shanshan Qin, Guang-You Nuclear Theory High Energy Physics - Phenomenology Nuclear Experiment Jets serve as powerful tomographic probes of the quark-gluon plasma (QGP) created in relativistic heavy-ion collisions. While the expanding landscape of jet observables reveals multi-faceted aspects of jet-medium interactions, a precise and simultaneous description of the nuclear modification factors of hadrons and full jets still remains a challenge for theoretical models. In this work, we present two essential improvements to the linear Boltzmann transport (LBT) model to bridge this gap. First, instead of implementing in-medium parton transport after vacuum parton showers complete, we introduce a medium scale at which the parton transport is inserted into the vacuum parton showers, providing a more physical picture of parton-QGP interactions. Second, we incorporate color flow information into the LBT model, enabling string connections between partons whose configurations are correlated with the medium-modified parton showers before hadronization. We demonstrate that both improvements alter the predicted ratio of hadron to jet quenching, leading to a satisfactory description of the nuclear modification factors of hadrons and jets with different flavors within a unified framework. |
| title | Improved linear Boltzmann transport model for hadron and jet suppression in ultra-relativistic heavy-ion collisions |
| topic | Nuclear Theory High Energy Physics - Phenomenology Nuclear Experiment |
| url | https://arxiv.org/abs/2602.10395 |