Non-perturbative quarkonium dissociation rates in strongly coupled quark-gluon plasma
Abstract Heavy quarks and quarkonia are versatile probes of the transport properties of the hot QCD medium produced in ultra-relativistic heavy-ion collisions (URHICs). A robust description of heavy-flavor transport coefficients requires a microscopic approach that treats the open and hidden heavy-f...
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| Format: | Article |
| Language: | English |
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SpringerOpen
2025-07-01
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| Series: | Journal of High Energy Physics |
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| Online Access: | https://doi.org/10.1007/JHEP07(2025)162 |
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| author | Biaogang Wu Zhanduo Tang Ralf Rapp |
| author_facet | Biaogang Wu Zhanduo Tang Ralf Rapp |
| author_sort | Biaogang Wu |
| collection | DOAJ |
| description | Abstract Heavy quarks and quarkonia are versatile probes of the transport properties of the hot QCD medium produced in ultra-relativistic heavy-ion collisions (URHICs). A robust description of heavy-flavor transport coefficients requires a microscopic approach that treats the open and hidden heavy-flavor sectors on the same footing. Here, we employ the quantum many-body T -matrix formalism to evaluate the dissociation rates of heavy quarkonia in the quark-gluon plasma (QGP). The basic ingredient is the heavy-light T -matrix, which utilizes a nonperturbative driving kernel constrained by lattice-QCD data. Its resummation in a ladder series provides a much enhanced interaction strength compared to a previously used perturbative coupling to the quasiparticle partons in the QGP. The in-medium quarkonium properties, particularly their temperature-dependent binding energies, are obtained from selfconsistent calculations with the same interaction kernel, including interference effects (also referred to as the imaginary part of the heavy-quark potential) as well as off-shell parton spectral functions. We systematically investigate the interplay of these effects and elaborate on the connections to the dipole approximation used in effective field theory. |
| format | Article |
| id | doaj-art-c0a96f3f5b964c8f8538b583cf7538a8 |
| institution | Kabale University |
| issn | 1029-8479 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj-art-c0a96f3f5b964c8f8538b583cf7538a82025-08-20T03:42:22ZengSpringerOpenJournal of High Energy Physics1029-84792025-07-012025713110.1007/JHEP07(2025)162Non-perturbative quarkonium dissociation rates in strongly coupled quark-gluon plasmaBiaogang Wu0Zhanduo Tang1Ralf Rapp2Cyclotron Institute and Department of Physics and Astronomy, Texas A&M UniversityCyclotron Institute and Department of Physics and Astronomy, Texas A&M UniversityCyclotron Institute and Department of Physics and Astronomy, Texas A&M UniversityAbstract Heavy quarks and quarkonia are versatile probes of the transport properties of the hot QCD medium produced in ultra-relativistic heavy-ion collisions (URHICs). A robust description of heavy-flavor transport coefficients requires a microscopic approach that treats the open and hidden heavy-flavor sectors on the same footing. Here, we employ the quantum many-body T -matrix formalism to evaluate the dissociation rates of heavy quarkonia in the quark-gluon plasma (QGP). The basic ingredient is the heavy-light T -matrix, which utilizes a nonperturbative driving kernel constrained by lattice-QCD data. Its resummation in a ladder series provides a much enhanced interaction strength compared to a previously used perturbative coupling to the quasiparticle partons in the QGP. The in-medium quarkonium properties, particularly their temperature-dependent binding energies, are obtained from selfconsistent calculations with the same interaction kernel, including interference effects (also referred to as the imaginary part of the heavy-quark potential) as well as off-shell parton spectral functions. We systematically investigate the interplay of these effects and elaborate on the connections to the dipole approximation used in effective field theory.https://doi.org/10.1007/JHEP07(2025)162Effective Field Theories of QCDQuark-Gluon PlasmaQuarkoniumThe Strong Coupling |
| spellingShingle | Biaogang Wu Zhanduo Tang Ralf Rapp Non-perturbative quarkonium dissociation rates in strongly coupled quark-gluon plasma Journal of High Energy Physics Effective Field Theories of QCD Quark-Gluon Plasma Quarkonium The Strong Coupling |
| title | Non-perturbative quarkonium dissociation rates in strongly coupled quark-gluon plasma |
| title_full | Non-perturbative quarkonium dissociation rates in strongly coupled quark-gluon plasma |
| title_fullStr | Non-perturbative quarkonium dissociation rates in strongly coupled quark-gluon plasma |
| title_full_unstemmed | Non-perturbative quarkonium dissociation rates in strongly coupled quark-gluon plasma |
| title_short | Non-perturbative quarkonium dissociation rates in strongly coupled quark-gluon plasma |
| title_sort | non perturbative quarkonium dissociation rates in strongly coupled quark gluon plasma |
| topic | Effective Field Theories of QCD Quark-Gluon Plasma Quarkonium The Strong Coupling |
| url | https://doi.org/10.1007/JHEP07(2025)162 |
| work_keys_str_mv | AT biaogangwu nonperturbativequarkoniumdissociationratesinstronglycoupledquarkgluonplasma AT zhanduotang nonperturbativequarkoniumdissociationratesinstronglycoupledquarkgluonplasma AT ralfrapp nonperturbativequarkoniumdissociationratesinstronglycoupledquarkgluonplasma |