Parity nonconservation in neutron capture on {sup 113}Cd

Journal Article · Sun Nov 01 00:00:00 EST 1998 · Physical Review, C

DOI:https://doi.org/10.1103/PhysRevC.58.2977· OSTI ID:663764

Seestrom, S J; Bowman, J D; Frankle, C M; Knudson, J N; Koehler, P E; Penttilae, S I; Smith, D A; Yen, Y F; Yuan, V W ^[1]; Crawford, B E; Roberson, N R ^[2]; Crawford, B E; Gould, C R; Haase, D G; Lowie, L Y; Mitchell, G E; Roberson, N R; Stephenson, S L ^[3]; Delheij, P P ^[4]; Gould, C R ; Haase, D G; Lowie, L Y; Mitchell, G E; Stephenson, S L ^[5]; Iinuma, M; Masaike, A; Matsuda, Y ^[6]; Masuda, Y; Shimizu, H M ^[7]; Popov, Y P; Sharapov, E I ^[8]; Postma, H ^[9]

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1. Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)
2. Duke University, Durham, North Carolina 27708 (United States)
3. Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708 (United States)
4. TRIUMF, Vancouver, British Columbia, V6T 2A3 (CANADA)
5. North Carolina State University, Raleigh, North Carolina 27965 (United States)
6. Physics Department, Kyoto University, Kyoto 606-01 (Japan)
7. National Laboratory of High Energy Physics, Tsukuba-shi 305 (Japan)
8. Joint Institute for Nuclear Research, Dubna, 141980 (Russia)
9. Delft University of Technology, Delft, 2600 GA (the Netherlands)

Parity nonconservation was studied for 23 p-wave resonances in {sup 113}Cd up to E{sub n}=500thinspeV at the LANSCE pulsed neutron source using a longitudinally polarized neutron beam and the time-of-flight method. The helicity dependence of the total neutron capture cross section was measured with an enriched {sup 113}Cd target and with a target of natural cadmium. Parity violating effects were observed for several resonances in {sup 113}Cd and {sup 111}Cd. A root-mean-square value of the parity nonconserving matrix element M{sub J=1}=2.9{sub {minus}0.9}{sup +1.3}thinspmeV was obtained for the spin J=1 levels in the compound nucleus {sup 114}Cd. This result from the 3p-peak region of the neutron strength function is compared with the parity violation results for nuclei from the 4p-peak region. {copyright} {ital 1998} {ital The American Physical Society}

• OSTI ID: 663764
• Journal Information: Physical Review, C, Vol. 58, Issue 5; Other Information: PBD: Nov 1998
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
CADMIUM 113 TARGET
PARITY
NEUTRON REACTIONS
CAPTURE
POLARIZED BEAMS
HELICITY
CADMIUM 111
CADMIUM 114
P INVARIANCE