Observation of parity nonconservation in the total cross section and in the cross section for the radiative capture of polarized thermal neutrons in /sup 79,81/Br

Journal Article · Tue Apr 20 00:00:00 EST 1982 · JETP Lett. (Engl. Transl.); (United States)

OSTI ID:6711121

Vesna, V A; Kolomenskii, E A; Lobashev, V M; Pirozhkov, A N; Smotritskii, L M; Titov, N A

Parity (P) nonconservation effects have been measured in the total and radiative cross sections in /sup 79,81/Br: (sigma/sup +//sub tot/-sigma/sup -//sub tot/)/(sigma/sup +//sub tot/+sigma/sup -//sub tot/) = (9.8 +- 1.0) x 10/sup -6/sigma/sub tot/) = 15.5 b and (sigma/sup +//sub ..gamma../-sigma/sup -//sub ..gamma../)/(sigma/sup +//sub ..gamma../+sigma/sup -//sub ..gamma../) = (15.5 +- 1.5) x 10/sup -6/sigma/sub ..gamma../ = 9.8 b, where the +- correspond to opposite neutron helicities. It follows from the results that the P-odd effect in the total cross section is determined by radiative capture, within the experimental error.

• Research Organization: B. P. Konstantinov Institute of Nuclear Physics, Academy of Sciences of the USSR
• OSTI ID: 6711121
• Journal Information: JETP Lett. (Engl. Transl.); (United States), Vol. 35:8
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BROMINE 79 TARGET
NEUTRON REACTIONS
BROMINE 81 TARGET
CAPTURE
TOTAL CROSS SECTIONS
P INVARIANCE
THERMAL NEUTRONS
BARYON REACTIONS
BARYONS
CROSS SECTIONS
ELEMENTARY PARTICLES
FERMIONS
HADRON REACTIONS
HADRONS
INVARIANCE PRINCIPLES
NEUTRONS
NUCLEAR REACTIONS
NUCLEON REACTIONS
NUCLEONS
TARGETS
651625* - Nuclear Properties & Reactions
A=59-89
Experimental- Nuclear Reactions & Scattering- (-1987)