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Selectively excited high-spin states in 27A1 have been located by the reaction 12C(160,p)ZVA1. The excitation functions of these states have been measured at incident energies Ecm = 18.7 to 30.1 MeV at intervals of 150keV. They exhibit maxima of presumably non-statistical origin. At four different energies the subsequent decay of the 27A1 states has been studied by detecting the final heavy recoils with the Munich recoil spectrometer in coincidence with the proton emitted in the first stage of the reaction. Using this new method branching ratios of the 7-, ~-, and n-decay have been measured. Based on angular correlation arguments spins up to 27/2 h have been determined within the experimental accuracy of 1-2 h. The observations suggest a superdeformed shape of 27A1 at least in some of the states.

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