Phys.Rev. C 91, 064316 (2015)

Y.Fujita, H.Fujita, T.Adachi, G.Susoy, A.Algora, C.L.Bai, G.Colo, M.Csatlos, J.M.Deaven, E.Estevez Aguado, C.J.Guess, J.Gulyas, K.Hatanaka, K.Hirota, M.Honma, D.Ishikawa, A.Krasznahorkay, H.Matsubara, R.Meharchand, F.Molina, H.Nakada, H.Okamura, H.J.Ong, T.Otsuka, G.Perdikakis, B.Rubio, H.Sagawa, P.Sarriguren, C.Scholl, Y.Shimbara, E.J.Stephenson, T.Suzuki, A.Tamii, J.H.Thies, K.Yoshida, R.G.T.Zegers, J.Zenihiro

High-resolution study of Gamow-Teller excitations in the ⁴²Ca (³He, t) ⁴²Sc reaction and the observation of a "low-energy super-Gamow-Teller state"

NUCLEAR REACTIONS ⁴²Ca(³He, t), E=140 MeV/nucleon; measured triton spectra, σ(θ) using Grand Raiden spectrometer at RCNP facility. ⁴²Sc; deduced levels, J, π, IAS, isospin of excited GT states, L-transfers, B(GT), configurations. Comparison of B(GT) values with those for ^44,48Sc, and from ⁴²Ti β⁺ decay to ⁴²Sc. Isospin assignments made in comparison with results from ⁴²Ca(p, p') reaction. Comparison with shell-model calculations using GXPF1J interaction. ¹²N, ¹⁶F, ^40,44Sc; observed peaks from contaminants in the target material, and appropriate corrections applied to triton spectra for ⁴²Sc.

doi: 10.1103/PhysRevC.91.064316