The6Li(22Ne,26Mg)d α-transfer experiment for the study of low-energy resonances in22Ne(α,γ)26Mg

While the reaction 22 Ne( α ,n) 25 Mg is considered an important neutron source for the s process in massive stars, the competing 22 Ne( α , γ ) 26 Mg reaction may be of considerable strength and could significantly suppress the neutron production. For a better understanding of this neutron source, the branching ratio of n and γ partial widths (Γ n , Γ γ ) and spectroscopic information such as energies and spins of 26 Mg resonance states within the Gamow window (E α = 400-1000 keV) should be experimentally determined with improved accuracy. In the present work, we propose to use the 6 Li( 22 Ne, 26 Mg)d α -transfer reaction to investigate those resonance parameters and have tested the feasibility of the experiment.