New Measurement of Proton Transfer Reactions and Elastic Scattering for⁷Li +¹³C at 34 MeV

Abstract

The 13 C( 7 Li, 6 He) 14 N reaction is measured at E( 7 Li) = 34 MeV with the Q3D magnetic spectrometer of HI-13 tandem accelerator. Angular distributions at forward angles for proton transfer to the ground and the first excited states in 14 N are obtained. In addition, angular distribution for 7 Li + 13 C elastic scattering is also measured. The optical potential parameters for the entrance and exit channels of the transfer reactions are derived by fitting the 7 Li + 13 C and 6 Li + 14 N elastic scattering experimental data, and their angular distributions are well reproduced by the distorted wave Born approximation calculations. A phase shift of about 2 • between the calculations and the experiment data has been found in the earlier ( 7 Li, 6 He) study, whereas no such phase shift is observed in the present work.