The Landau-Migdal Parameters, g'_NN and g'_NΔand Pion Condensations
arXiv:nucl-th/9901097
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.
arXiv comment9 pages