TY - JOUR
T1 - In-beam γ-ray spectroscopy of U240 using the (O18,O16) reaction
AU - Ishii, T.
AU - Shigematsu, S.
AU - Asai, M.
AU - Makishima, A.
AU - Matsuda, M.
AU - Kaneko, J.
AU - Hossain, I.
AU - Ichikawa, S.
AU - Kohno, T.
AU - Ogawa, M.
PY - 2005/8
Y1 - 2005/8
N2 - In the two-neutron-transfer reaction of a 200-MeV O18 beam with a U238 target, deexcitation γ rays in a neutron-rich nucleus of U240 were measured. The γ rays in U240 were identified by taking coincidence with O16, using Si ΔE-E detectors. The kinetic energies of O16 particles allowed us to select the excitation energies of U240 below the neutron separation energy. The ground-state band and the Kπ=0- octupole band of U240 were established up to 12+ and 9-, respectively. The octupole-band head of U240 is about a hundred keV higher than those of U236,238, suggesting that a secondary maximum of octupole correlations exists at N=144-146 in U isotopes.
AB - In the two-neutron-transfer reaction of a 200-MeV O18 beam with a U238 target, deexcitation γ rays in a neutron-rich nucleus of U240 were measured. The γ rays in U240 were identified by taking coincidence with O16, using Si ΔE-E detectors. The kinetic energies of O16 particles allowed us to select the excitation energies of U240 below the neutron separation energy. The ground-state band and the Kπ=0- octupole band of U240 were established up to 12+ and 9-, respectively. The octupole-band head of U240 is about a hundred keV higher than those of U236,238, suggesting that a secondary maximum of octupole correlations exists at N=144-146 in U isotopes.
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U2 - 10.1103/PhysRevC.72.021301
DO - 10.1103/PhysRevC.72.021301
M3 - Article
AN - SCOPUS:33244478549
SN - 0556-2813
VL - 72
JO - Physical Review C - Nuclear Physics
JF - Physical Review C - Nuclear Physics
IS - 2
M1 - 021301
ER -