We report on the in-beam gamma spectroscopy of ${}^{102}\mathrm{Sn}$ and ${}^{100}\mathrm{Cd}$ produced via two-neutron removal from carbon and ${\mathrm{CH}}_2$ targets at about 150 MeV/nucleon beam energy. New transitions assigned to the decay of a second $2^{+}$ excited state at 2470(60) keV in ${}^{102}\mathrm{Sn}$ were observed. Two-neutron removal cross sections from ${}^{104}\mathrm{Sn}$ and ${}^{102}\mathrm{Cd}$ have been extracted. The enhanced cross section to the $2_2^{+}$ in ${}^{102}\mathrm{Sn}$ populated via the $(p,p2n)$ reaction is traced back to an increase of shell-model structure overlaps, consistent with the hypothesis that the proton-induced two-deeply bound-nucleon removal mechanism is of direct nature.

• Received 20 February 2018

DOI:https://doi.org/10.1103/PhysRevC.97.044321