Search for P-ODD asymmetry in the radiative cross-section of the interaction of neutrons with lead nuclei |
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Authors: | Yu. M. Gledenov V. V. Nesvizhevsky P. V. Sedyshev E. V. Shul’gina V. A. Vesna |
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Affiliation: | 1. Joint Institute for Nuclear Research, Dubna, Russia 2. Institut Max von Laue-Paul Langevin, Grenoble, France 3. St. Petersburg Institute of Nuclear Physics, Gatchina, Russia
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Abstract: | The P-odd effect in the radiation cross section of capture of longitudinally polarized neutrons in a sample of natural lead is measured. The experiment was performed at PF1B facility at the Institut Max von Laue-Paul Langevin. The neutron polarization P n was 92%, the total flux of polarized neutrons was ~3 × 1010 n/s, and the mean neutron wavelength was λ = 4.7 Å. Taking into account “0-test” we estimated the asymmetry: a γ(natPb) = (2.3 ± 3.5) × 10?7, i.e., α γ ≤ 8.1 × 10?7 at 90% confidence level. |
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