Optical model description of parity-nonconserving neutron resonances

S. E. Koonin, C. W. Johnson, P. Vogel

Research output: Contribution to journalArticle

Abstract

We calculate the average helicity dependence of the low-energy neutron-nucleus cross section in terms of a phenomenological optical model. Comparison with recent measurements on Th232 and U238 by the TRIPLE Collaboration shows that the effective parity-nonconserving interaction is two orders of magnitude larger than estimates based on standard meson-exchange models. The helicity dependence is predicted to oscillate with target mass due to shape resonances.

Original languageEnglish (US)
Pages (from-to)1163-1166
Number of pages4
JournalPhysical Review Letters
Volume69
Issue number8
DOIs
StatePublished - 1992

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parity
neutrons
mesons
nuclei
cross sections
estimates
interactions
energy

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Optical model description of parity-nonconserving neutron resonances. / Koonin, S. E.; Johnson, C. W.; Vogel, P.

In: Physical Review Letters, Vol. 69, No. 8, 1992, p. 1163-1166.

Research output: Contribution to journalArticle

Koonin, S. E. ; Johnson, C. W. ; Vogel, P. / Optical model description of parity-nonconserving neutron resonances. In: Physical Review Letters. 1992 ; Vol. 69, No. 8. pp. 1163-1166.
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