High-spin isomer and level structure of 145Sm
作者： A. Odahara , Y. Gono , S. Mitarai , T. Morikawa , T. Shizuma
DOI: 10.1016/S0375-9474(97)00189-9
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摘要: Abstract High-spin states of 145 Sm were studied by using the reactions 20 Ne( 136 Xe,α7n), 16 O( Xe,7n), 139 La( 10 B,4n) and 138 Ba( 13 C,6n). The level scheme was extended up to state at 14.6 MeV. excitation energy spin-parity 0.96 μs high-spin isomer determined be 8.8 MeV ( 49 2 + ), respectively. Experimental results discussed comparing with deformed independent particle model calculation. isomers observed in N = 83 isotones interpreted caused sudden shape change from near spherical oblate. Z 64 shell gap found decrease 2.4 2.0 as proton number decreases 61.
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