Selectivity of the 16O(e,e'pp) reaction to discrete final states
Abstract
Resolution of discrete final states in the 16O(e,e'pp)14C reaction may provide an interesting tool to discriminate between contributions from one- and two-body currents in this reaction. This is based on the observation that the 0+ ground state and first 2+ state of 14C are reached predominantly by the removal of a 1S0 pair from 16O in this reaction, whereas other states mostly arise by the removal of a 3P pair. This theoretical prediction has been supported recently by an analysis of the pair momentum distribution of the experimental data. In this paper we present results of reaction calculations performed in a direct knock-out framework where final-state interaction and one- and two-body currents are included. The two-nucleon overlap integrals are obtained from a calculation of the two-proton spectral function of 16O and include both long-range and short-range correlations. The kinematics chosen in the calculations is relevant for recent experiments at NIKHEF and Mainz.
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