1. Inverse-kinematics proton scattering from 42,44S, 41,43P, and the collapse of the N=28 major shell closure.
- Author
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Riley, L. A., Bazin, D., Belarge, J., Bender, P. C., Brown, B. A., Cottle, P. D., Elman, B., Gade, A., Gregory, S. D., Haldeman, E. B., Kemper, K. W., Klybor, B. R., Liggett, M. A., Lipschutz, S., Longfellow, B., Lunderberg, E., Mijatovic, T., Pereira, J., Skiles, L. M., and Titus, R.
- Subjects
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PROTON scattering , *INELASTIC scattering , *LIQUID hydrogen , *EXCITED states , *ISOTOPES - Abstract
Excited states of the neutron-rich isotopes 42,44S and 41,43P have been studied via inverse-kinematics proton scattering from a liquid hydrogen target, using the GRETINA γ-ray tracking array to extract inelastic-scattering cross sections. Deformation lengths of the 21+ excitations in 42,44S have been determined and, when combined with deformation lengths determined with electromagnetic probes, yield the ratio of neutron-to-proton matrix elements Mn/Mp for the 21+ excitations in these nuclei. The present results for 41,43P(p,p') are used to compare two shell-model interactions, SDPF-U and SDPF-MU. As in a recent study of 42Si, the present results on 41,43P favor the SDPF-MU interaction. [ABSTRACT FROM AUTHOR]
- Published
- 2019
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