Inverse Kinematics Proton Scattering onN18eand Mirror Symmetry inA

Abstract

The 0 1 g.s. ! 2 1 1 transition in 18 Ne has been studied using the inverse kinematics reaction p͑ 18 Ne, p 0 ͒ with a radioactive 18 Ne beam at 30 MeV͞nucleon. Hadronic scattering data on the 0 1 g.s. ! 2 1 1 transition in the mirror nucleus 18 O are already available, so this is the first time that hadronic measurements have been available to test mirror symmetry in s-d shell nuclei. The angular distribution data for proton inelastic scattering in 18 Ne and corresponding data for 18 O are well reproduced in microscopic model calculations using empirical proton and neutron transition densities determined for 18 O.

Folding model analysis of proton scattering from mirror nuclei 18Ne and 18O

“…In this work, proton scattering on 18 Ne and 18 O has been studied at low energies (<100 MeV/A) [5,6] in a folding model approach. The folding model is well known as a powerful tool for analyzing nucleus-nucleus scattering data at relatively low incident energies [4,[7][8][9].…”

Lifetime of the21+state and densities for the0g.s.+→21+Riley1, Cottle2, Brown-Hayes3 et al. 2003Phys. Rev. CSelf Cite10011View full textAdd to dashboardCite

“…The calculations were carried out using the code FRESCO, version FRXP.14 [13]. We adopted the "mirror" hypothesis of 18 Ne, as used successfully in an analysis of 18 Ne+p scattering [14], whereby the proton and neutron densities of 18 Ne are taken to be equal to the neutron and proton densities of FIG. 1.…”

“…The 18 O ground state and transition densities were as used in Ref. [14], the proton densities being determined from electron scattering [7] and the neutron densities from proton scattering [8]. The 197 Au densities were derived from the electron scattering results of Hahn et al [15], corrected for the finite size of the proton, with the neutron density being assumed to be N/Z times the proton density.…”

From nuclear reactions to compact stars: a unified approach

“…FIG. 6:The experimental angular distributions and folding model calculations of (a) p +18 Ne at 30A MeV for elastic and inelastic [E * = 1.890 MeV (2 + )] scattering[60], (b) p + 18 O at 24.5A MeV for elastic and inelastic [E * = 1.982 MeV (2 + )] scattering[61]. The continuous and dashed lines correspond to calculations for elastic and inelastic cross sections respectively.…”