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Optical model description of parity-nonconserving neutron resonances

Koonin, S. E. and Johnson, C. W. and Vogel, P. (1992) Optical model description of parity-nonconserving neutron resonances. Physical Review Letters, 69 (8). pp. 1163-1166. ISSN 0031-9007. doi:10.1103/PhysRevLett.69.1163.

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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 232Th and 238U 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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Vogel, P.0000-0003-0587-5466
Additional Information:©1992 The American Physical Society. Received 26 March 1992. We are grateful for discussions with G. E. Brown and H. A. Bethe and with other members of the Caltech nuclear theory effort. This work was supported in part by National Science Foundation Grants No. PHY90-13248 and No. PHY91-15574 and by Contract No. DE-F603-88ER-40397 with the U.S. Department of Energy.
Issue or Number:8
Record Number:CaltechAUTHORS:KOOprl92
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:4655
Deposited By: Tony Diaz
Deposited On:01 Sep 2006
Last Modified:08 Nov 2021 20:19

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