Breakup and Finite-Range Effects on the ⁸B(d,n)⁹C Reaction

Abstract

The astrophysical factor of 8 B(p,γ) 9 C at zero energy, S18(0), is determined by a three-body coupled-channels analysis of the transfer reaction 8 B(d,n) 9 C at 14.4 MeV/nucleon. Effects of the breakup channels of d and 9 C are investigated with the continuum-discretized coupled-channels method. It is found that, in the initial and final channels, respectively, the transfer process through the breakup states of d and 9 C, its interference with that through their ground states in particular, gives a large increase in the transfer cross section. The finiterange effects with respect to the proton-neutron relative coordinate are found to be about 20%. As a result of the present analysis, S18(0) = 22 ± 6 eV b is obtained, which is smaller than the result of the previous distorted-wave Born approximation analysis by about 51%.

Explicit inclusion of nonlocality in(d,p)transfer reactions

“…Making use of the ANC method, transfer reactions have also become a common tool to extract information relevant in the understanding of astrophysically important processes [42,43]. Sometimes, the ANC for the system of interest is not accessible directly, while the mirror system is.…”