The quantum numbers of over 100 states in ~(30)P have been determined from the ground state to 8 MeV. Previous measurements had provided complete spectroscopy in ~(26)Al. For these N = Z= odd nuclei, states of isospin T = 0 and T = 1 coexist at all energies. These spectra provide a unique opportunity to test the effect of symmetry breaking (of the approximate symmetry isospin) on the level statistics and on the transition strength distributions. The level statistics are strongly affected by the small symmetry breaking and the transition strength distributions differ from the Porter-Thomas distribution.
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机译：从基态到8 MeV已经确定了〜（30）P中100多个状态的量子数。先前的测量提供了〜（26）Al中的完整光谱。对于这些N = Z =奇核，同位旋T = 0和T = 1的状态在所有能量下共存。这些光谱提供了一个独特的机会来测试对称性折断（近似对称的同位旋旋）对物位统计和跃迁强度分布的影响。高度统计数据受到较小对称性破坏的强烈影响，并且过渡强度分布与Porter-Thomas分布不同。
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