On the $\alpha-$decay of deformed actinide nuclei
  $\alpha-$decay through a deformed potential barrier produces significant mixing of angular momenta when mapped from the nuclear interior to the outside. Using experimental branching ratios and either semi-classical or coupled-channels transmission matrices, we have found that there is a set of internal amplitudes which are essentially constant for all even--even actinide nuclei. These same amplitudes also give good results for the known anisotropic $\alpha-$particle emission of the favored decays of odd nuclei in the same mass region.   PACS numbers: 23.60.+e, 24.10.Eq, 27.90.+b 
T. L. Stewart, M. W. Kermode, D. J. Beachey, N. Rowley, I. S. Grant,   A. T. Kruppa