Phys.Rev. C 86, 034603 (2012)

M.A.Al-Ohali, J.P.Delaroche, C.R.Howell, M.M.Nagadi, A.A.Naqvi, W.Tornow, R.L.Walter, G.J.Weisel

Neutron scattering from ²⁸Si and ³²S from 8.0 to 18.9 MeV, dispersive optical model analyses, and ground-state correlations

NUCLEAR REACTIONS ²⁸Si(n, n), E=15.4, 18.9 MeV; ³²S(n, n), E=8.0, 9.9, 11.9, 13.9, 15.4, 16.9, 18.9 MeV; measured E(n), I(n), TOF, σ(E, θ), total σ(E), A_y(θ); deduced optical model potentials parameters by nucleon-nucleus dispersive optical model (DOM) analysis in the continuum and bound-state regions. ²⁸Si(n, n), E=2.45-65.0; ³²S(n, n), E=3.0-40.0 MeV; analyzed σ(E, θ) and A_y(θ) data from previous experiments by DOM. ²⁸Si, ³²S(n, n), E=2-160 MeV; analyzed total σ(E) by DOM. ²⁸Si, ³²S; deduced neutron and proton binding energies, occupation probabilities, root-mean-square radii, spectroscopic factors, and compared with variational multiparticle multihole configuration mixing (mp-mh CM) shell-model calculation using the Gogny D1S effective force.

doi: 10.1103/PhysRevC.86.034603