学術雑誌論文 Regularization dependence on phase diagram in Nambu–Jona-Lasinio model

Kohyama, H.  ,  Kimura, D.  ,  Inagaki, Tomohiro

896pp.682 - 715 , 2015-07 , Elsevier B.V.
ISSN:0550-3213
NII書誌ID(NCID):AA00760043
内容記述
We study the regularization dependence on meson properties and the phase diagram of quark matter by using the two flavor Nambu–Jona-Lasinio model. The model also has the parameter dependence in each regularization, so we explicitly give the model parameters for some sets of the input observables, then investigate its effect on the phase diagram. We find that the location or the existence of the critical end point highly depends on the regularization methods and the model parameters. Then we think that regularization and parameters are carefully considered when one investigates the QCD critical end point in the effective model studies.
TI is supported by JSPS KAKENHI Grant Number 26400250. HK is supported by MOST 103-2811-M-002-087.
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http://ir.lib.hiroshima-u.ac.jp/files/public/40172/20160603094047546502/NuclearPhysicsB_896_682.pdf

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