TY - JOUR
T1 - High-resolution study of the Be9(He3,t)B9 reaction up to the B9 triton threshold
AU - Scholl, C.
AU - Fujita, Y.
AU - Adachi, T.
AU - Von Brentano, P.
AU - Fujita, H.
AU - Górska, M.
AU - Hashimoto, H.
AU - Hatanaka, K.
AU - Matsubara, H.
AU - Nakanishi, K.
AU - Ohta, T.
AU - Sakemi, Y.
AU - Shimbara, Y.
AU - Shimizu, Y.
AU - Tameshige, Y.
AU - Tamii, A.
AU - Yosoi, M.
AU - Zegers, R. G.T.
PY - 2011/7/11
Y1 - 2011/7/11
N2 - A high-energy-resolution Be9(He3,t)B9 charge-exchange reaction was performed around a scattering angle of 0° and at an intermediate incident energy of 140 MeV/nucleon for the study of precise Gamow-Teller (GT) transition strengths. The energy resolution of 30 keV allowed a precise deconvolution of the spectrum and the determination of angular distributions of cross sections, excitation energies, and decay widths. The GT strength of 10 states has been determined for the first time using the GT strength of the analogous β decays of Li9 and C9 as standards. The large difference between the GT strengths going to the low-lying T=1/2 and the highly excited T=3/2 states is interpreted as a result of their different spatial structures. The obtained GT strength distribution is compared to the results of a (p,n) experiment with lower resolution performed in the 1980s. In particular, the width of the 16.8 MeV, Jπ=(5/2+) state has been determined for the first time.
AB - A high-energy-resolution Be9(He3,t)B9 charge-exchange reaction was performed around a scattering angle of 0° and at an intermediate incident energy of 140 MeV/nucleon for the study of precise Gamow-Teller (GT) transition strengths. The energy resolution of 30 keV allowed a precise deconvolution of the spectrum and the determination of angular distributions of cross sections, excitation energies, and decay widths. The GT strength of 10 states has been determined for the first time using the GT strength of the analogous β decays of Li9 and C9 as standards. The large difference between the GT strengths going to the low-lying T=1/2 and the highly excited T=3/2 states is interpreted as a result of their different spatial structures. The obtained GT strength distribution is compared to the results of a (p,n) experiment with lower resolution performed in the 1980s. In particular, the width of the 16.8 MeV, Jπ=(5/2+) state has been determined for the first time.
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U2 - 10.1103/PhysRevC.84.014308
DO - 10.1103/PhysRevC.84.014308
M3 - Article
AN - SCOPUS:79961120643
SN - 0556-2813
VL - 84
JO - Physical Review C - Nuclear Physics
JF - Physical Review C - Nuclear Physics
IS - 1
M1 - 014308
ER -