Study of (α, p) three nucleon transfer reactions on odd A nuclei in 1 f7/2 shell

Using 25.7MeV alpha particles, the differential cross sections are measured for the ground state(0+), 0.835MeV(2+) state and 1.824MeV(4+) state of 54Cr corresponding to the 51V (α,p)54Cr reaction and for the 0.81MeV(2+) state, 1.657MeV(2+) state and 2.08-2.26MeV(4+, 3+, 0+) state of 58Fe corresponding to the 5%Mn(α,p) 58Fe reaction. The angular distributions of the different states for the two reactions are calculated for various possibly transfer angular momenta. Calculations are carried out using the zero range DWBA theory with a quasi-triton process. The results show that in the case of the odd A nuclei, although the transfer angular momenta are not the only value, yet in the fitting it can be found that only one transfer angular momentum is dominated in the angular distribution. The (α, p) reactions on the odd A nuclei also have j-dependence for l=3 transition but not as strong as l=1 transition