$T$-Matrix Approach to Strongly Coupled {QGP}
| Pub type: | Inproceedings |
| Citation: | 1742-6596-779-1-012034 |
| Status: | Published |
| Journal: | Journal of Physics: Conference Series |
| Booktitle: | 16th International Conference on Strangeness in Quark Matter (SQM2016) |
| Volume: | 779 |
| Number: | 1 |
| Year: | 2017 |
| Month: | February |
| Pages: | 012034 |
| Publisher: | IOP Publishing |
| Location: | Berkeley, USA |
| URL: | http://stacks.iop.org/1742-659... |
| DOI: | 10.1088/1742-6596/779/1/012034 |
| Abstract: | Based on a thermodynamic T -matrix approach we extract the potential V between two static charges in the quark-gluon plasma (QGP) from ts to the pertinent lattice-QCD free energy. With suitable relativistic corrections we utilize this new potential to compute heavy-quark transport coefficients and compare the results to previous calculations using either F or U as potential. We then discuss a generalization of the T -matrix re-summation to a “matrix log” re-summation of t -channel diagrams for the grand partition function of the QGP in the Luttinger-Ward skeleton diagram formalism. With V as a non-perturbative driving kernel in the light-parton sector, we obtain the QGP equation of state from ts to lattice-QCD data. The resulting light-parton spectral functions are characterized by large thermal widths at small momenta, indicating the dissolution of quasi-particles in a strongly coupled QGP. |
| Month_val: | 2 |
| Conference_dates: | Jun 27 - Jul 1, 2016 |
| Authors: | |
| Added by: | [DGM] |
| Total mark: | 0 |
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