Analysis of direct and indirect processes of two-proton-transfer reactions performed onNi64andMo100

Abstract

The $^{64}\mathrm{Ni}$($^{16}\mathrm{O}$, $^{14}\mathrm{C}$)$^{66}\mathrm{Zn}$ and $^{100}\mathrm{Mo}$($^{12}\mathrm{C}$, $^{10}\mathrm{Be}$)$^{102}\mathrm{Ru}$ angular distributions have been measured between 13\ifmmode^\circ\else\textdegree\fi{} and 70\ifmmode^\circ\else\textdegree\fi{} (lab), respectively, at 56 and 48 MeV incident energies. Distorted-wave Born approximation and coupled-channel Born approximation analyses have been performed using exact finite range codes. The marked difference in the angular distributions between the $^{102}\mathrm{Ru}$ ground state and ${2}^{+}$ state can be well described using coupled-channel Born approximation calculations that take into account the important indirect processes. Furthermore, the relative intensities among various states are better reproduced by coupled-channel Born approximation calculations than by distorted-wave Born approximation calculations.NUCLEAR REACTIONS $^{64}\mathrm{Ni}$($^{16}\mathrm{O}$, $^{14}\mathrm{C}$) and $^{100}\mathrm{Mo}$($^{12}\mathrm{C}$, $^{10}\mathrm{Be}$), ${E}_{{16}_{0}}=56$ MeV and ${E}_{{12}_{\mathrm{C}}}=48$ MeV. Angular distribution measured between 13\ifmmode^\circ\else\textdegree\fi{} and 70\ifmmode^\circ\else\textdegree\fi{} lab. DWBA and CCBA analyses performed with Saturn-mars-i and ii.