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The Landau-Migdal Parameters, g'_NN and g'_NΔand Pion Condensations

T. Suzuki·H. Sakai·T. Tatsumi
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Abstract

The Landau-Migdal parameters for nucleon-nucleon (g'_NN) and nucleon-Δ(g'_NΔ) couplings are estimated from recent experimental data on the giant Gamow-Teller state of 90Nb. The observed quenching of the GT strength by 10% provides 0.16<g'_NΔ<0.23 for g'_ΔΔ<1.0, while the excitation energy g'_NN\sim 0.59. The critical density of pion condensations is much lower than those previously discussed with the universality ansatz.

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T. Suzuki, H. Sakai, T. Tatsumi. 1999-01-30. The Landau-Migdal Parameters, g'_NN and g'_NΔand Pion Condensations. https://arxiv.org/abs/nucl-th/9901097

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