Alpha-cluster study by measurements of vector analyzing power in the (d,6Li) reaction

The alpha-cluster states of the sd-shell nuclei are investigated measuring the vector analyzing powers from the (d, 6Li) reaction. The vector analyzing powers at small angles are sensitive to bound state wave functions in the target nuclei rather than the incident and outgoing distorted wave functions. Using the alpha-cluster bound state wave functions which reproduce the measured analyzing powers, alpha-spectroscopic factors for the first K = 0+ band states of 16O and 20Ne were deduced from the differential cross sections and were compared with the theoretical spectroscopic factors for the α+ α+16O and the α+ α+12C of multi-cluster structures in the target nuclei. (author)