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- W2343649293 abstract "According to the pioneering model proposed by Nambu and Jona-Lasinio (NJL) cite{2,3}, a massless fermion acquires its mass via a vacuum phase transition (VPT) process. Our discussion is considerably simplified because an effective Hamiltonian for VPT is proposed and a simple regularization-renormalization method (RRM) is adopted. An unambiguous constraint is found as $frac{pi^2}{GDelta^2_1}=frac{2}{3}$, where $G$ is the coupling constant first introduced in the NJL model while $Delta_1$ the mass of fermion ($f$) created after the VPT. The masses of bosons with spin-parity $J^P=0^+, 0^-,1^+$ and $1^-$ as collective modes composed of fermion-antifermion pairs ($fbar{f}$s) are also calculated by the method of random phase approximation (RPA)." @default.
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- W2343649293 date "2015-10-12" @default.
- W2343649293 modified "2023-10-18" @default.
- W2343649293 title "Nambu--Jona-Lasinio Model Revisited with a Simple Regularization-Renormalization Method" @default.
- W2343649293 cites W2071023577 @default.
- W2343649293 cites W2997872173 @default.
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- W2343649293 doi "https://doi.org/10.48550/arxiv.1510.03842" @default.
- W2343649293 hasPublicationYear "2015" @default.
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