TY - JOUR
T1 - Gamow-Teller transitions from 58Ni to discrete states of 58Cu
T2 - tttttthe study of isospin symmetry in atomic nuclei
AU - Fujita, Y.
AU - Fujita, H.
AU - Adachi, T.
AU - Berg, G. P.A.
AU - Caurier, E.
AU - Fujimura, H.
AU - Hara, K.
AU - Hatanaka, K.
AU - Janas, Z.
AU - Kamiya, J.
AU - Kawabata, T.
AU - Langanke, K.
AU - Martinez-Pinedo, G.
AU - Noro, T.
AU - Roeckl, E.
AU - Shimbara, Y.
AU - Shinada, T.
AU - Van Der Werf, S. Y.
AU - Yoshifuku, M.
AU - Yosoi, M.
AU - Zegers, R. G.T.
PY - 2002
Y1 - 2002
N2 - Under the assumption that isospin is a good quantum number, symmetry is expected for the transitions from the ground states of T = 1, T z = ±1 nuclei to the common excited states of the T z = 0 nucleus situated between the two nuclei. The symmetry can be studied by comparing the strengths of Gamow-Teller (GT) transitions obtained from a (p, n)-type charge-exchange reaction on a target nucleus with T z = 1 with those from the β-decay of the T z = - 1 nucleus. The A = 58 system is the heaviest for which such a comparison is possible. As a part of the symmetry study, we measured the GT transitions from 58Ni (T z = 1) to 58Cu (T z = 0) by using the zero-degree (3 He, t) reaction at 150 MeV/nucleon. With the achieved resolution of 50 keV, many hitherto unresolved GT states have been identified. The GT transition strengths were obtained for states up to 8 MeV excitation, i.e., near to the Q window limitation ( Q EC = 9.37 MeV) of the β-decay from 58Zn (T z = - 1) to 58Cu. The strength distribution is compared with that from shell-model calculations.
AB - Under the assumption that isospin is a good quantum number, symmetry is expected for the transitions from the ground states of T = 1, T z = ±1 nuclei to the common excited states of the T z = 0 nucleus situated between the two nuclei. The symmetry can be studied by comparing the strengths of Gamow-Teller (GT) transitions obtained from a (p, n)-type charge-exchange reaction on a target nucleus with T z = 1 with those from the β-decay of the T z = - 1 nucleus. The A = 58 system is the heaviest for which such a comparison is possible. As a part of the symmetry study, we measured the GT transitions from 58Ni (T z = 1) to 58Cu (T z = 0) by using the zero-degree (3 He, t) reaction at 150 MeV/nucleon. With the achieved resolution of 50 keV, many hitherto unresolved GT states have been identified. The GT transition strengths were obtained for states up to 8 MeV excitation, i.e., near to the Q window limitation ( Q EC = 9.37 MeV) of the β-decay from 58Zn (T z = - 1) to 58Cu. The strength distribution is compared with that from shell-model calculations.
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U2 - 10.1140/epja/iepja1344
DO - 10.1140/epja/iepja1344
M3 - Article
AN - SCOPUS:20444497735
SN - 1434-6001
VL - 13
SP - 411
EP - 418
JO - European Physical Journal A
JF - European Physical Journal A
IS - 4
ER -