Breakup reactions and their ambiguities

Abstract

We review the ambiguities in the nuclear information extracted from breakup reactions, focusing on those originating from the description of the reaction mechanism and the overall ambiguity inherent to their interpretation in terms of shell occupancies. We present the current discussion about nucleon knockout reactions and how the understanding of the reaction mechanism would help reducing uncertainties. For the former, we consider the case of $$^{11}$$ 11 Li, due to the existing large data set. For the latter, we recall the paradigmatic example of the electro-dissociation of the deuteron to address the question of the scale and scheme dependence from the theoretical framework used for the interpretation.

Spectroscopic factors in dripline nuclei

“…The mixing of SM eigenstates due to the continuum coupling interaction consists of the Hermitian principal value integral describing virtual continuum excitations and the anti-Hermitian residuum that represents the irreversible decay out of the internal space Q 0 . Spectroscopic factors.-While not observables in the strictest sense [33][34][35][36], SFs are useful as they capture information on configuration mixing in the many-body wave function.…”