Authors
Kay, B.; Tang, T.; Tolstukhin, I.; Roderick, G.; Mitchell, A. J.; Ayyad, Y.; Bennett, S.; Chen, J.; Chipps, K. ; Crawford, H. L.; Gott, M.; Hoffman, C. R.; Jayatissa, H.; Wilson, G.
Abstract
Absolute cross sections for the addition of s-and d -wave neutrons to 14C and 14N have been determined simultaneously via the (d,p) reaction at 10 MeV/u. The difference between the neutron and proton separation energies, AS, is around -20 MeV for the 14C + n system and +8 MeV for 14N + n. The population of the 1s1/2 and 0d5/2 orbitals for both systems is reduced by a factor of approximately 0.5 compared with the independent single-particle model, or about 0.6 when compared with the shell model. This finding strongly contrasts with results deduced from intermediate-energy knockout reactions between similar nuclei on targets of 9Be and 12C. The simultaneous technique used removes many systematic uncertainties.