Ca40(α,α′γ)for States at 6.29, 6.56, and 6.94 MeV

Gamma rays from ${\mathrm{Ca}}^{40}(\alpha ,{\alpha }^{\prime }\gamma )$ have been studied using 31-MeV $\alpha$ particles detected in a solid-state detectorsubtending 4.5×${10}^{-3\mathrm{}}$ sr at 30° from the beam axis. The states studied are at 6.29, 6.56 ($3^{-}$ states), and 6.94 MeV. For the 6.94-MeV state, an angular correlation of the ground-state branch is reported which lends support to the $1^{-}$ assignment from the ($\alpha ,{\alpha }^{\prime }$) angular distribution at a bombarding energy of 31 MeV.