Gamow-Teller Strengths Near the Ground States in A=110 - 120 Nuclei Studied by (p, n) Reaction

Abstract An experimental study of the (p,n) reactions on 110, 112, 114, 116Cd and 116, 118, 120Sn has been carried out. The GT type ΔJπ=1+ transitions leading to the ground states or to those close to g. s.. have been systematically observed in addition to the ΔJπ = 0+ isobaric analog transitions. By testing proportionality relationship between the (p,n) cross section andthe corresponding β-decay rate, previously unknown GT matrix elements have been obtained.