Estimation of the diffusion coefficient of heavy quarks in light of Gribov-Zwanziger action
The heavy quark momentum diffusion coefficient (κ) is one of the most essential ingredients for the Langevin description of heavy quark dynamics. In the temperature regime relevant to the heavy ion collision phenomenology, a substantial difference exists between the lattice estimations of κ and the...
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| Main Authors: | , , , |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
25 January 2023
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| In: |
Physics letters
Year: 2023, Volume: 838, Pages: 1-8 |
| ISSN: | 1873-2445 |
| DOI: | 10.1016/j.physletb.2023.137714 |
| Online Access: | Verlag, kostenfrei, Volltext: https://doi.org/10.1016/j.physletb.2023.137714 Verlag, kostenfrei, Volltext: https://www.sciencedirect.com/science/article/pii/S0370269323000485 
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| Author Notes: | Sadaf Madni, Arghya Mukherjee, Aritra Bandyopadhyay, Najmul Haque |
| Summary: | The heavy quark momentum diffusion coefficient (κ) is one of the most essential ingredients for the Langevin description of heavy quark dynamics. In the temperature regime relevant to the heavy ion collision phenomenology, a substantial difference exists between the lattice estimations of κ and the corresponding leading order (LO) result from the hard thermal loop (HTL) perturbation theory. Moreover, the indication of poor convergence in the next-to-leading order (NLO) perturbative analysis has motivated the development of several approaches to incorporate the non-perturbative effects in the heavy quark phenomenology. In this work, we estimate the heavy quark diffusion coefficient based on the Gribov-Zwanziger prescription. In this framework, the gluon propagator depends on the temperature-dependent Gribov mass parameter, which has been obtained self-consistently from the one-loop gap equation. Incorporating this modified gluon propagator in the analysis, we find a reasonable agreement with the existing lattice estimations of κ within the model uncertainties. |
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| Item Description: | Online verfügbar 23. Januar 2023, Artikelversion 25. Januar 2023 Gesehen am 17.05.2023 |
| Physical Description: | Online Resource |
| ISSN: | 1873-2445 |
| DOI: | 10.1016/j.physletb.2023.137714 |