For deuteron scattering from ${}^{58}$Ni at laboratory energies of 56, 79, and 120 MeV, we study the dynamic polarization potentials (DPPs) induced by $S$-wave and $D$-wave breakup (BU), separately and together, in order to gain insight into the nature of the DPP as well as a counterintuitive property: the existence of $L$ values for which the BU coupling increases $|S_L|$, a ‘wrong-way’ effect. The effect is associated with the existence of emissive regions in the imaginary DPP, suggesting a connection with the nonlocal nature of the DPP. The same relationship was previously found for ${}^6$Li scattering, indicating a generic effect bearing on the dynamics of nuclear reactions.

• Received 26 July 2012

DOI:https://doi.org/10.1103/PhysRevC.86.047602