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G-Matrix Equation in the Resonating-Group Method

Yoshikazu Fujiwara·Michio Kohno·Choki Nakamoto·Yasuyuki Suzuki
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Abstract

The G-matrix equation is most straightforwardly formulated in the resonating-group method if the quark-exchange kernel is directly used as the driving term for the infinite sum of all the ladder diagrams. The inherent energy-dependence involved in the exchange term of the normalization kernel plays the essential role to define the off-shell T-matrix uniquely when the complete Pauli-forbidden state exists. We analyze this using a simple solvable model with no quark-quark interaction, and calculating the most general T-matrix in the formulation developed by Noyes and Kowalski. This formulation gives a certain condition for the existence of the solution in the Lippmann-Schwinger resonating-group method. A new procedure to deal with the corrections for the reduced masses and the internal-energy terms in the Lambda N - Sigma N coupled-channel resonating-group equation is proposed.

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Yoshikazu Fujiwara, Michio Kohno, Choki Nakamoto, Yasuyuki Suzuki. 2000-06-28. G-Matrix Equation in the Resonating-Group Method. https://doi.org/10.1143/ptp.104.1025

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