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Two- and Three-particle States in a Nonrelativistic Four-fermion Model in the Fine-tuning Renormalization Scheme. Goldstone mode "against" extension theory
A. N. Vall, S. E. Korenblit, V. M. Leviant +2
In a nonrelativistic contact four-fermion model we show that simple regularisation prescriptions together with a definite fine-tuning of the cut-off-parameter dependence of ``bare'…
Fine-Tuning Renormalization and Two-particle States in Nonrelativistic Four-fermion Model
A. N. Vall, S. E. Korenblit, V. M. Leviant +2
Various exact solutions of two-particle eigenvalue problems for nonrelativistic contact four-fermion current-current interaction are obtained. Specifics of Goldstone mode is invest…
Three-particle States in Nonrelativistic Four-fermion Model
A. N. Vall, S. E. Korenblit, V. M. Leviant +2
On a nonrelativistic contact four-fermion model we have shown that the simple Lambda-cut-off prescription together with definite fine-tuning of the Lambda dependency of "bare"quant…