Effective Potential of Nambu--Jona-Lasinio Model in Differential Regularization
classification
✦ hep-th
keywords
regularizationapplieddifferentialeffectivefieldsmethodmodelnambu--jona-lasinio
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The method of differential regularization is applied to calculate explicitly the one-loop effective potential of a bosonized Nambu--Jona-Lasinio model consisting of scalar and pseudoscalar fields. The regularization scheme independent relation for the $\sigma$ mass sum rule is obtained. This method can be readily applied to extended NJL models with gauge fields.
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