K43from theK41(t,p) reaction

The reaction /sup 41/K(t,p)/sup 43/K has been investigated with a 15-MeV triton beam. Twenty levels of /sup 43/K (many of them unreported previously) have been identified up to about 3.4 MeV excitation energy. Angular distributions were measured for all levels. Comparison with distorted-wave Born-approximation calculations allows extraction of L values for most of them. Three multiplets arising from the couplings of (1f/sub 7/2/)= 2/sup 2/ and (1f/sub 7/2/)= 4/sup 2/ transferred neutrons with the 1d/sub 3/2/ proton hole have been identified in /sup 43/K. Their energy centroids are closely related to the (1f/sub 7/2/)/sup 4/ spectrum of /sup 44/Ca. The general sum rules for two-nucleon transfer reactions and a more specialized sum rule give a good account of the data and suggest spin and parity assignments for many of the observed states. The positive parity states in /sup 43/K are compared with f/sub 7/2//sup 4/(d/sub 3/2/s/sub 1/2/)-1 and f/sub 7/2//sup 3/ p/sub 3/2/d/sub 3/2//sup -1/ shell-model calculations.