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Parity violation at neutron p-wave resonances of238U and232Th and related questions |
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| Authors: | H. Postma J. D. Bowman C. D. Bowman J. E. Bush P. P. J. Delheij C. M. Frankle C. R. Gould D. G. Haase J. Knudson G. E. Mitchell S. Penttilä N. R. Roberson S. J. Seestrom J. J. Szymansky S. H. Yoo V. W. Yuan X. Zhu |
| Affiliation: | (1) University of Technology, P.O. Box 5046, 2600 GA Delft, The Netherlands;(2) Los Alamos National Laboratory, 87545 Los Alamos, NM, USA;(3) North Carolina State University, 27695 Raleigh, NC, USA;(4) TRIUMF, V6T 2A3 Vancouver, BC, Canada;(5) Duke University, 27706 Durham, NC;(6) TUNL, 27706 Durham, NC, USA |
| Abstract: | Parity violation effects have been studied at 40 neutron p-wave resonances of the even-even nuclei238U and232Th. Of these 11 show parity violation effects larger than 2 standard deviations, making parity violation a rather common phenomenon. Parity mixing up to 10% has been found. The root-mean squared matrix elements for parity violation derived from these resonances are M=0.58 (+0.50/-0.25) meV for238U, respectively 1.39 (+0.35/-0.38) meV for232Th. |
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