Mirror nucleon-transfer reactions from ${}^{18}$Ne and ${}^{18}$O

Abstract

The ${}^{18}$Ne(d,t)${}^{17}$Ne and ${}^{18}$Ne(d,${}^3$He)${}^{17}$F single-nucleon pickup reactions were measured at 16.5 MeV/nucleon in inverse kinematics together with elastic and inelastic scattering channels. The full set of measured exclusive differential cross sections was compared with the mirror reaction channels on stable ${}^{18}$O after consistent reanalysis using coupled reaction channels calculations. Within this interpretation scheme, most of the spectroscopic factors extracted for the population of unbound states in ${}^{17}$F match within uncertainties with their mirror partners in ${}^{17}$O. However, for the deeply-bound neutron removal channel to ${}^{17}$Ne, a significant symmetry breaking with the mirror proton-removal channel leading to ${}^{17}$N is evidenced by an overall single-particle strength reduction.