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Asymmetry dependence of nucleon correlations in spherical nuclei extracted from a dispersive-optical-model analysis

Publication ,  Journal Article
Mueller, JM; Charity, RJ; Shane, R; Sobotka, LG; Waldecker, SJ; Dickhoff, WH; Crowell, AS; Esterline, JH; Fallin, B; Howell, CR; Westerfeldt, C ...
Published in: Physical Review C - Nuclear Physics
June 15, 2011

Neutron elastic-scattering angular distributions were measured at beam energies of 11.9 and 16.9 MeV on Ca40,48 targets. These data plus other elastic-scattering measurements, total and reaction cross-sections measurements, (e,e′p) data, and single-particle energies for magic and doubly magic nuclei have been analyzed in the dispersive optical-model (DOM), generating nucleon self-energies (optical-model potentials) that can be related, via the many-body Dyson equation, to spectroscopic factors and occupation probabilities. It is found that, for stable nuclei with N≥Z, the imaginary surface potential for protons exhibits a strong dependence on the neutron-proton asymmetry. This result leads to a more modest dependence of the spectroscopic factors on asymmetry. The measured data and the DOM analysis of all considered nuclei clearly demonstrate that the neutron imaginary surface potential displays very little dependence on the neutron-proton asymmetry for nuclei near stability (N≥Z). © 2011 American Physical Society.

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Published In

Physical Review C - Nuclear Physics

DOI

EISSN

1089-490X

ISSN

0556-2813

Publication Date

June 15, 2011

Volume

83

Issue

6

Related Subject Headings

  • Nuclear & Particles Physics
  • 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
 

Citation

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Mueller, J. M., Charity, R. J., Shane, R., Sobotka, L. G., Waldecker, S. J., Dickhoff, W. H., … Pedroni, R. S. (2011). Asymmetry dependence of nucleon correlations in spherical nuclei extracted from a dispersive-optical-model analysis. Physical Review C - Nuclear Physics, 83(6). https://doi.org/10.1103/PhysRevC.83.064605
Mueller, J. M., R. J. Charity, R. Shane, L. G. Sobotka, S. J. Waldecker, W. H. Dickhoff, A. S. Crowell, et al. “Asymmetry dependence of nucleon correlations in spherical nuclei extracted from a dispersive-optical-model analysis.” Physical Review C - Nuclear Physics 83, no. 6 (June 15, 2011). https://doi.org/10.1103/PhysRevC.83.064605.
Mueller JM, Charity RJ, Shane R, Sobotka LG, Waldecker SJ, Dickhoff WH, et al. Asymmetry dependence of nucleon correlations in spherical nuclei extracted from a dispersive-optical-model analysis. Physical Review C - Nuclear Physics. 2011 Jun 15;83(6).
Mueller, J. M., et al. “Asymmetry dependence of nucleon correlations in spherical nuclei extracted from a dispersive-optical-model analysis.” Physical Review C - Nuclear Physics, vol. 83, no. 6, June 2011. Scopus, doi:10.1103/PhysRevC.83.064605.
Mueller JM, Charity RJ, Shane R, Sobotka LG, Waldecker SJ, Dickhoff WH, Crowell AS, Esterline JH, Fallin B, Howell CR, Westerfeldt C, Youngs M, Crowe BJ, Pedroni RS. Asymmetry dependence of nucleon correlations in spherical nuclei extracted from a dispersive-optical-model analysis. Physical Review C - Nuclear Physics. 2011 Jun 15;83(6).

Published In

Physical Review C - Nuclear Physics

DOI

EISSN

1089-490X

ISSN

0556-2813

Publication Date

June 15, 2011

Volume

83

Issue

6

Related Subject Headings

  • Nuclear & Particles Physics
  • 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics