Spectroscopic Factor and ANC Sensitivity to Single Particle Parameters and Global Optical Potentials

For over 40 years direct transfer reactions, such as (d,p), (d,n) and ($^{3}$He,$\alpha )$, have been the key tool to extract structure information, usually in the form of a spectroscopic factor (SF), as well as information of interest for astrophysics. Transfer reactions are gaining popularity for the study of exotic nuclei. A systematic study was performed to investigate the sources of uncertainties in spectroscopic factors resulting from the choice of global optical potentials (GOPs). A 15{\%} uncertainty in the cross section at the first peak of the theoretical distribution was observed. Also, the sensitivity of the asymptotic normalization coefficient (ANC) on single particle parameters was analyzed. The ANC was found to be insensitive to single particle parameters for peripheral reactions. However, uncertainties resulting from GOPs prevent an accurate theoretical determination of the highest energy at which a reaction becomes peripheral.