Importance of deuteron breakup in the deuteron knockout reaction

Background: An isoscalar $pn$ pair is expected to emerge in nuclei that have similar proton and neutron numbers it may be a candidate for deuteron ``cluster.'' There is, however, no experimental evidence it.Purpose: The purpose of this paper construct new reaction model the $(p,pd)$ including breakup elementary process reformation by final-state interactions. How these processes contribute observables investigated.Methods: distorted wave impulse approximation extended twofold. $(p,pd)$, i.e., $p\text{\ensuremath{-}}d$ elastic scattering $d(p,p)pn$ reaction, are described with an picture employing nucleon-nucleon effective interaction. three-body waves final state calculated continuum-discretized coupled-channels method. triple-differential cross section (TDX) model.Results: reasonably well present model. As can either increase or decrease TDX height depending on interference between channels deuteron, while back-coupling effect always decreases it.Conclusions: It shown significantly changes through interference. important include quantitatively discuss sections view formation nuclei. For more quantitative discussion regarding data, further improvement will necessary.