Non-linear dynamics of jet quenching
Abstract We develop a comprehensive analytic framework for jet quenching in QCD media, based on a medium-induced parton cascade sourced by collinear virtual splittings. We show that the energy flow out of the jet cone, driven by turbulent gluon cascades, is governed by a non-linear rate equation tha...
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| Format: | Article |
| Language: | English |
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SpringerOpen
2025-04-01
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| Series: | Journal of High Energy Physics |
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| Online Access: | https://doi.org/10.1007/JHEP04(2025)163 |
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| author | Yacine Mehtar-Tani |
| author_facet | Yacine Mehtar-Tani |
| author_sort | Yacine Mehtar-Tani |
| collection | DOAJ |
| description | Abstract We develop a comprehensive analytic framework for jet quenching in QCD media, based on a medium-induced parton cascade sourced by collinear virtual splittings. We show that the energy flow out of the jet cone, driven by turbulent gluon cascades, is governed by a non-linear rate equation that resums gluon splittings at arbitrary angles and is enhanced by the medium length, L. The solution of this equation sets the initial condition for a non-linear DGLAP-like evolution equation, which describes the collinear early vacuum cascade resolved by the medium at angles exceeding the medium resolution angle, θ c . For asymptotic jet energies, the medium-induced cascade displays an exponential behavior that generalizes the Poisson-like distribution of parton energy loss. This formulation enables the resummation of leading contributions in α s ln(1/R), and α s ln(R/θ c ), and powers of α s L. We briefly explore the limit of strong quenching, where analytic treatments are feasible, offering insights into the impact of parton cascades on jet quenching. These results provide guidance for future numerical simulations and analytical investigations. |
| format | Article |
| id | doaj-art-4d6193d20eee4a75a299bd20d2fec6c1 |
| institution | DOAJ |
| issn | 1029-8479 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj-art-4d6193d20eee4a75a299bd20d2fec6c12025-08-20T03:09:34ZengSpringerOpenJournal of High Energy Physics1029-84792025-04-012025413110.1007/JHEP04(2025)163Non-linear dynamics of jet quenchingYacine Mehtar-Tani0Physics Department, Brookhaven National LaboratoryAbstract We develop a comprehensive analytic framework for jet quenching in QCD media, based on a medium-induced parton cascade sourced by collinear virtual splittings. We show that the energy flow out of the jet cone, driven by turbulent gluon cascades, is governed by a non-linear rate equation that resums gluon splittings at arbitrary angles and is enhanced by the medium length, L. The solution of this equation sets the initial condition for a non-linear DGLAP-like evolution equation, which describes the collinear early vacuum cascade resolved by the medium at angles exceeding the medium resolution angle, θ c . For asymptotic jet energies, the medium-induced cascade displays an exponential behavior that generalizes the Poisson-like distribution of parton energy loss. This formulation enables the resummation of leading contributions in α s ln(1/R), and α s ln(R/θ c ), and powers of α s L. We briefly explore the limit of strong quenching, where analytic treatments are feasible, offering insights into the impact of parton cascades on jet quenching. These results provide guidance for future numerical simulations and analytical investigations.https://doi.org/10.1007/JHEP04(2025)163FactorizationRenormalization GroupJets and Jet SubstructureQuark-Gluon PlasmaResummation |
| spellingShingle | Yacine Mehtar-Tani Non-linear dynamics of jet quenching Journal of High Energy Physics Factorization Renormalization Group Jets and Jet Substructure Quark-Gluon Plasma Resummation |
| title | Non-linear dynamics of jet quenching |
| title_full | Non-linear dynamics of jet quenching |
| title_fullStr | Non-linear dynamics of jet quenching |
| title_full_unstemmed | Non-linear dynamics of jet quenching |
| title_short | Non-linear dynamics of jet quenching |
| title_sort | non linear dynamics of jet quenching |
| topic | Factorization Renormalization Group Jets and Jet Substructure Quark-Gluon Plasma Resummation |
| url | https://doi.org/10.1007/JHEP04(2025)163 |
| work_keys_str_mv | AT yacinemehtartani nonlineardynamicsofjetquenching |