Report
Static quark anti-quark interactions at non-zero temperature from lattice QCD
| العنوان: | Static quark anti-quark interactions at non-zero temperature from lattice QCD |
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| المؤلفون: | Bala, Dibyendu, Kaczmarek, Olaf, Larsen, Rasmus, Mukherjee, Swagato, Parkar, Gaurang, Petreczky, Peter, Rothkopf, Alexander, Weber, Johannes Heinrich |
| المصدر: | Phys. Rev. D 105, 054513 , Published 24 March 2022 |
| سنة النشر: | 2021 |
| المجموعة: | High Energy Physics - Lattice High Energy Physics - Phenomenology Nuclear Theory |
| مصطلحات موضوعية: | High Energy Physics - Lattice, High Energy Physics - Phenomenology, Nuclear Theory |
| الوصف: | We study the interactions of a static quark antiquark pair at non-zero temperature using realistic 2+1 flavor lattice QCD calculations. The study consists of two parts: the first investigates the properties of Wilson line correlators in Coulomb gauge and compares to predictions of hard-thermal loop perturbation theory. As a second step we extract the spectral functions underlying the correlators using four conceptually different methods: spectral function fits, a HTL inspired fit for the correlation function, Pad\'e rational approximation and the Bayesian BR spectral reconstruction. We find that our high statistics Euclidean lattice data are amenable to different hypotheses for the shapes of the spectral function and we compare the implications of each analysis method for the existence and properties of a well defined ground state spectral peak. |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1103/PhysRevD.105.054513 |
| URL الوصول: | http://arxiv.org/abs/2110.11659 |
| رقم الانضمام: | edsarx.2110.11659 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1103/PhysRevD.105.054513 |
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