Temperature dependence of meson screening masses; a comparison of effective model with lattice QCD

Masahiro Ishii, Takahiro Sasaki, Kouji Kashiwa, Hiroaki Kouno, Masanobu Yahiro

Research output: Contribution to journalConference article

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.

Original languageEnglish
Article number190
JournalProceedings of Science
VolumePart F130500
Publication statusPublished - Jan 1 2014
Event32nd International Symposium on Lattice Field Theory, LATTICE 2014 - New York, United States
Duration: Jun 23 2014Jun 28 2014

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All Science Journal Classification (ASJC) codes

  • General

Cite this

Ishii, M., Sasaki, T., Kashiwa, K., Kouno, H., & Yahiro, M. (2014). Temperature dependence of meson screening masses; a comparison of effective model with lattice QCD. Proceedings of Science, Part F130500, [190].