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Pis'ma v Zhurnal Èksperimental'noi i Teoreticheskoi Fiziki, 2004, Volume 80, Issue 11, Pages 803–805
(Mi jetpl2176)
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This article is cited in 2 scientific papers (total in 2 papers)
FIELDS, PARTICLES, AND NUCLEI
Search for $P$-odd asymmetry of prompt neutrons emission in $^{235}$U fission induced by cold polarized neutrons
E. V. Brakhmana, G. V. Danilyana, A. V. Fedorova, I. L. Karpikhina, V. A. Krakhotina, V. S. Pavlova, R. Golubb, E. I. Korobkinab, T. Wilpertb a State Scientific Center of Russian Federation – Institute for Theoretical and Experimental Physics, 117218 Moscow, Russia
b Berlin Neutron Scattering Center of Hahn-Meitner Institute, D-14
109 Berlin
Abstract:
The preliminary result of the $P$-odd asymmetry of prompt neutron emission in $^{235}$U fission induced by polarized cold neutrons is $a = (2.7 \pm 0.8)\cdot10^{-5}$. Only the scission neutrons can show such asymmetry, whereas neutrons emitted by excited fragments are the unavoidable background, which suppress the sought asymmetry. The $P$-odd asymmetry of light fragment emission for $^{235}$U is equal to $(8.4 \pm 0.6)\cdot10^{-4}$. Assuming that last figure defines the parity mixture of fissile nucleus then the suppression factor is equal approximately to 3.
Received: 21.10.2004
Citation:
E. V. Brakhman, G. V. Danilyan, A. V. Fedorov, I. L. Karpikhin, V. A. Krakhotin, V. S. Pavlov, R. Golub, E. I. Korobkina, T. Wilpert, “Search for $P$-odd asymmetry of prompt neutrons emission in $^{235}$U fission induced by cold polarized neutrons”, Pis'ma v Zh. Èksper. Teoret. Fiz., 80:11 (2004), 803–805; JETP Letters, 80:11 (2004), 675–677
Linking options:
https://www.mathnet.ru/eng/jetpl2176 https://www.mathnet.ru/eng/jetpl/v80/i11/p803
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Abstract page: | 176 | Full-text PDF : | 45 | References: | 29 |
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