The ${}_{}{}^{27}{}_{}{}^{}\mathrm{Al}$(p,d${)}^{26}$Al reaction has been studied at $E_p$=35 MeV with high resolution to populate known $5^{\mathrm{-}}$ and $6^{\mathrm{-}}$ stretched states of $d_{5/2}$-hole–$f_{7/2}$-particle structure, and to obtain the weak spectroscopic factors. These are compared to results also obtained for the ${}_{}{}^{26}{}_{}{}^{}\mathrm{Mg}$(p,d${)}^{25}$Mg and ${}_{}{}^{26}{}_{}{}^{}\mathrm{Mg}$${(}^3$He,α${)}^{25}$Mg reactions to known ${(7/2\mathrm{}}^{\mathrm{-}}$ states. An analysis of these results in the Nilsson scheme exposes the structure of the $6^{\mathrm{-}}$ stretched states and offers an understanding of the fragmentation of M6 stretched transition strength in ${}_{}{}^{26}{}_{}{}^{}\mathrm{Mg}$, as seen by electron scattering. This work is part of a consistent study of many nuclear reactions to stretched states in mass 26, to serve as a test case for these important single-particle modes.

• Received 6 June 1988

DOI:https://doi.org/10.1103/PhysRevC.38.2026