Optical model description of parity-nonconserving neutron resonances

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

doi:10.1103/PhysRevLett.69.1163

Optical model description of parity-nonconserving neutron resonances

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

Research output: Contribution to journal › Article › peer-review

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 language	English (US)
Pages (from-to)	1163-1166
Number of pages	4
Journal	Physical Review Letters
Volume	69
Issue number	8
DOIs	https://doi.org/10.1103/PhysRevLett.69.1163
State	Published - 1992

ASJC Scopus subject areas

General Physics and Astronomy

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10.1103/PhysRevLett.69.1163

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title = "Optical model description of parity-nonconserving neutron resonances",

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.",

author = "Koonin, {S. E.} and Johnson, {C. W.} and P. Vogel",

year = "1992",

doi = "10.1103/PhysRevLett.69.1163",

language = "English (US)",

volume = "69",

pages = "1163--1166",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "8",

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T1 - Optical model description of parity-nonconserving neutron resonances

AU - Koonin, S. E.

AU - Johnson, C. W.

AU - Vogel, P.

PY - 1992

Y1 - 1992

N2 - 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.

AB - 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.

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U2 - 10.1103/PhysRevLett.69.1163

DO - 10.1103/PhysRevLett.69.1163

M3 - Article

AN - SCOPUS:4244216052

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SP - 1163

EP - 1166

JO - Physical Review Letters

JF - Physical Review Letters

IS - 8

ER -

Optical model description of parity-nonconserving neutron resonances

Abstract

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