Using a quasiparticle Tamm-Dancoff approximation (TDA) based on deformed Hartree-Fock (HF) calculations with Skyrme interactions, the distribution of the Gamow-Teller (GT) ${\mathrm{\beta }}^{+}$ decay strength is estimated for the HF local minima of even-even deformed nuclei near the proton drip line in the region of 28<Z<66. The distribution often depends sensitively on the nuclear shape (namely, oblate or prolate). In the region of Z<50 the possibility of observing β-delayed proton emission depends sensitively on the excess of Z over Z=N. In the region of Z≳50 almost the entire estimated GT strength is found to lie below the ground states of the even-even mother nuclei, and the observation of the total GT strength by β-delayed charged-particle(s) emission will be of essential importance.

• Received 1 May 1995

DOI:https://doi.org/10.1103/PhysRevC.52.2468