Anomalous influence of the angular momentum on the fission of light nuclei by protons and a particles
Ignatyuk A.V. , Itkis M.G., Okolovich V.N., Smirenkin G.N. , Tishin A.S.
We present the results of measurements of the fission probability of the nuclei Po210, Bi209, Bi207, Hg198, Ir189, and Os186 in the reactions (p, /) and (a, /). All six pairs of reactions reveal at low excitations a decrease of the fission probability on going from protons to a particles, in spite of the traditional notion that the fissility increases with increasing angular momentum. A theoretical interpretation of the observed anomalous effect is presented.
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