Revised spin-parity assignment and a new interpretation of the high-spin isomer in 151Er
作者： T. Fukuchi , T. Hori , T. Masue , K. Tajiri , A. Sato
DOI: 10.1140/EPJA/I2008-10692-4
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摘要: The high-spin isomer in 151Er ( Ex = 10.3 MeV, T1/2 420 ns) has been studied by the 116Sn 40Ar , 5n) reaction at 197MeV. From \( \gamma \gamma\) coincidence relations, a new transition with an energy of 1514keV was found. This finding requires revision spin-parity assignment from previous 67/2- to 61/2+ or 65/2- . is one which predicted deformed independent particle model as large oblate deformation \beta\) - 0.17) \(\ensuremath[\nu(f_{7/2}h_{9/2} i_{13/2}) \pi(h^4_{11/2})]_{61/2^+}\) configuration. isomerism may be attributed sudden shape change nearly spherical lower-spin yrast states shape.
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