High-spin states of the mass A = 39 mirror pair K-39 and Ca-39 were investi
gated via the fusion-evaporation reaction Si-28+O-16 at 125 MeV beam energy
. The GAMMASPHERE array in conjunction with the 4 pi charged-particle detec
tor array MICROBALL and neutron detectors was used to detect gamma rays in
coincidence with evaporated light particles. The results of the first high-
spin study of the T-z = -1/2 nucleus Ca-39 are discussed in terms of mirror
symmetry and compared to spherical shell-model calculations in the 1d(3/2)
-1f(7/2) configuration space.