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Higher Dimension Operators and Chiral Symmetry Breaking in Nambu-Jona-Lasinio Model

Taekoon Lee·Yongseok Oh
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Abstract

We point out that adding higher dimension operators to the Nambu-Jona-Lasinio model can stabilize chiral symmetry breaking and resolve the issue raised by Kleinert and Van den Bossche that chiral symmetry breaking cannot occur for $N_c \le N_c^{\rm cr}$ due to large quantum fluctuations of the composite fields.

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Taekoon Lee, Yongseok Oh. 2000-01-13. Higher Dimension Operators and Chiral Symmetry Breaking in Nambu-Jona-Lasinio Model. https://doi.org/10.1016/s0370-2693(00)00072-1

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