1. Temperature dependence of meson screening masses; a comparison of effective model with lattice QCD
- Author
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Ishii, Masahiro, Sasaki, Takahiro, Kashiwa, Kouji, Kouno, Hiroaki, and Yahiro, Masanobu
- Subjects
High Energy Physics - Phenomenology ,High Energy Physics - Lattice ,Nuclear Theory - Abstract
Temperature dependence of pion and sigma-meson screening masses is evaluated by the Polyakov-loop extended Nambu--Jona-Lasinio model with the entanglement vertex (EPNJL model). We propose a practical way of calculating meson screening masses in the NJL-type effective models. The method based on the Pauli-Villars regularization solves the well-known difficulty that the evaluation of screening masses is not easy in the NJL-type effective models. The method is applied to analyze temperature dependence of pion screening masses calculated with state-of-the-art lattice simulations with success in reproducing the lattice QCD results. We predict the temperature dependence of pole mass by using EPNJL model., Comment: 7 pages, 3 figures, Presented at The 32nd International Symposium on Lattice Field Theory, Lattice2014
- Published
- 2015