Parity nonconservation in nuclear fission

Journal Article · Mon Oct 26 00:00:00 EST 1998 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.56716· OSTI ID:21202245

Koetzle, A; Jesinger, P; Goennenwein, F ^[1]; Petrov, G A; Petrova, V I; Gagarski, A M; Krasnoschokova, I A; Pleva, Yu S; Sokolov, V E; Soloviev, S M; Vasiliev, V Ya ^[2]; Danilyan, G ^[3]; Zimmer, O; Nesvizhevsky, V ^[4]

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1. Physikalisches Institut, Auf der Morgenstelle 14, 72076 Tuebingen (Germany)
2. PNPI of RAS, Gatchina, Leningrad district, 188350 (Russian Federation)
3. ITEP, Moscow 117259 (Russian Federation)
4. Institut Laue-Langevin, 38042 Grenoble (France)

The aim of this work is to determine the size {alpha}{sub nf} of the global PNC asymmetry coefficient for the isotopes {sup 237}Np, {sup 245}Cm and {sup 249}Cf, to search for a mass- and energy dependence {alpha}{sub nf}(m{sub LF},E{sub FF}) in the case of {sup 233}U(n,f) and to test the predicted angular distribution of fragments W({theta}). Analysis of the new results together with those obtained before for six other fissile isotopes shows an evident decrease of the PNC effect when going from {sup 229}Th to {sup 249}Cf. A tentative interpretation of this tendency as a result of saddle point properties of the fission-prone nucleus is given. For the mass- and energy analysis the principle of measurement is presented and first results for the test of the angular dependence are given.

• OSTI ID: 21202245
• Journal Information: AIP Conference Proceedings, Vol. 447, Issue 1; Conference: 2. international workshop on nuclear fission and fission-product spectroscopy, Seyssins (France), 22-25 Apr 1998; Other Information: DOI: 10.1063/1.56716; (c) 1998 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANGULAR DISTRIBUTION
ASYMMETRY COEFFICIENTS
CALIFORNIUM 249
CURIUM 245
ENERGY DEPENDENCE
FISSION
FISSION FRAGMENTS
NEPTUNIUM 237
NEUTRON BEAMS
NEUTRON REACTIONS
P INVARIANCE
POLARIZATION
THORIUM 229
URANIUM 233 TARGET