Abstract

Angular momentum selection rules for (p, t) reactions within the framework of DWBA formalism are given for the particular case where the triton wavefunction is classified according to its orbital permutation symmetry. The selection rules demonstrate that certain previous calculations of unnatural parity transitions should exactly vanish, and suggest the important result that “weak” unnatural parity transitions can occur as direct one step reactions via the mixed symmetry S and D state components of the triton wavefunction.

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