Alpha particle transfer in the interacting boson approximation

The interacting boson approximation of Iachello and Arima has been applied to the calculation of $\alpha$ particle transfer spectroscopic factors for nuclei from ${}_{}{}^{44}{}_{}{}^{}\mathrm{Ti}$ to ${}_{}{}^{68}{}_{}{}^{}\mathrm{Zn}$. The results are compared with the results of (${}_{}{}^6{}_{}{}^{}\mathrm{Li},d$) experiments in the same mass region.