Off-shell effects in 16O (original) (raw)

Nuclear Physics A, 1972

Abstract

We calculate the binding energy of 16O for a set of phase-shift-equivalent potentials previously studied in nuclear matter. Off-shell variations of up to 2.8 MeV per particle occur compared with about a 10 MeV per particle variation in nuclear matter. As in nuclear matter calculations a nearly linear relation exists between the variations in the binding-energy results and the wound integral k. We compare the 16O results with a nuclear matter calculation at the ``equivalent'' nuclear matter density of kF = 1.13 fm-1. This ``equivalent'' density reflects the fact that 16O has a surface and hence a lower average density than nuclear matter. The 16O and nuclear matter off-shell variations are comparable once one takes into account the lower average density of 16O and the suppression of the relative D-wave interaction - also a surface effect. We present a method of computing the correlated wave functions of finite nuclear systems and display such wave functions for 16O. The correlated wave functions of 16O and of nuclear matter are strikingly similar for all of the potentials studied. Supported in part by the Atomic Energy Commission under Contract AT(30-1) 2098.

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