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Hadronic current correlation functions at finite temperature in the NJL model

R. L. S. Farias·G. Krein·O. A. Battistel
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Abstract

Recently there have been suggestions that for a proper description of hadronic matter and hadronic correlation functions within the NJL model at finite density/temperature the parameters of the model should be taken density/temperature dependent. Here we show that qualitatively similar results can be obtained using a cutoff-independent regularization of the NJL model. In this regularization scheme one can express the divergent parts at finite density/temperature of the amplitudes in terms of their counterparts in vacuum.

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R. L. S. Farias, G. Krein, O. A. Battistel. 2004-11-16. Hadronic current correlation functions at finite temperature in the NJL model. https://doi.org/10.1063/1.1843613

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