MEASUREMENT OF PARITY VIOLATION IN COMPOUND NUCLEAR RESONANCES USING EPITHERMAL POLARIZED NEUTRONS

Authors
FRANKLE CM BOWMAN JD KNUDSON JN PENTTILA SI SEESTROM SJ YOO SH YUAN VW GOULD CR HAASE DG MITCHELL GE ROBERSON NR POPOV YP SHARAPOV EI DELHEIJ PPJ POSTMA H
Citation
Cm. Frankle et al., MEASUREMENT OF PARITY VIOLATION IN COMPOUND NUCLEAR RESONANCES USING EPITHERMAL POLARIZED NEUTRONS, Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms, 79(1-4), 1993, pp. 306-308
Citations number
11
Categorie Soggetti
Physics, Nuclear","Nuclear Sciences & Tecnology","Instument & Instrumentation
Journal title
Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms → ACNP
ISSN journal
0168583X
Volume
79
Issue
1-4
Year of publication
1993
Pages
306 - 308
Database
ISI
SICI code
0168-583X(1993)79:1-4<306:MOPVIC>2.0.ZU;2-L
Abstract
Polarized neutron transmission experiments show remarkable sensitivity to the presence of small symmetry violating forces in nuclear interac tions. Parity-nonconserving (PNC) analyzing powers of a percent or mor e have been measured on p-wave neutron resonances in nuclei ranging fr om Br-81 to U-238. A brief summary is given of the study of PNC effect s in neutron resonances. Details of ongoing polarized neutron transmis sion experiments are discussed and some sample data presented. Several development projects are currently under way, which taken together sh ould improve the sensitivity of these experiments by a factor of appro ximately 20. Similar large PNC effects can be observed in (n, gamma) r esonances with much smaller samples. A design for a near 4pi gamma ray detector to be constructed of CsI(pure) is described.