The resonances in the ${}^{22}$Ne+α fusion reactions

The interplay and correlation between the ${}^{22}$Ne(α, γ)${}^{26}$Mg and the competing ${}^{22}$Ne(α, n)${}^{25}$Mg reaction plays an important role for the interpretation of the ${}^{22}$Ne(α, n)${}^{25}$Mg reaction as a neutron source in the s- and n-processes. This paper provides a summary and new data on the α-cluster and single-particle structure of the compound nucleus ${}^{26}$Mg and the impact on the reaction rate of these two competing processes in stellar helium burning environments.