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キーワード:
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要旨:
The excitation of the 485-keV state of the neutron-rich "island of inversion" nucleus 33Mg was measured in intermediate-energy Coulomb excitation. The result of the present experiment suggests that the 485-keV state is a rotational excitation built on the ground state, not a state with different intrinsic structure as proposed previously. If the 485-keV state is indeed a rotational excitation, then the deformation of 33Mg is similar to that of other nuclei in the island of inversion