Perturbative treatment of parity nonconservation in neutron-nucleus scattering within the optical model

Journal Article · Fri Jan 01 04:00:00 EST 1993 · Physical Review, C (Nuclear Physics); (United States)

DOI:https://doi.org/10.1103/PhysRevC.47.376· OSTI ID:7119303

Carlson, B V ^[1]; Hussein, M S ^[2]

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1. Instituto de Estudos Avancados, Centro Tecnico Aeroespacial, 12225 Sao Jose dos Campos, Sao Paulo (Brazil)
2. Nuclear Theory and Elementary Particle Phenomenology Group, Instituto de Fisica, Universidade de Sao Paulo, Caixa Postal 20516, 01498 Sao Paulo, Sao Paulo (Brazil)

The question of parity nonconservation in compound nuclear reactions is treated within the optical model. This model supplies a description of average cross section spin polarization, spin rotation, and the parity nonconservation direct testing quantity, the longitudinal asymmetry. Taking for the optical model potential a sum of a parity conserving strong complex potential and a parity nonconserving (PNC) weak potential, the above physical quantities are then evaluated, with the PNC potential treated with perturbation theory. The compound elastic, absorption, and total components of all the measurable quantities are discussed. Application is then made to the recent TRIPLE data on the [ital n]+[sup 232]Th systems at thermal neutrons energies.

• OSTI ID: 7119303
• Journal Information: Physical Review, C (Nuclear Physics); (United States), Journal Name: Physical Review, C (Nuclear Physics); (United States) Vol. 47:1; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

662120 -- General Theory of Particles & Fields-- Symmetry
Conservation Laws
Currents & Their Properties-- (1992-)
663430* -- Nucleon-Induced Reactions & Scattering-- (1992-)
663590 -- Nuclear Mass Ranges-- A=220 & Above-- (1992-)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BARYON REACTIONS
BARYONS
BORN APPROXIMATION
COMPOUND-NUCLEUS REACTIONS
CONSERVATION LAWS
DWBA
ELEMENTARY PARTICLES
FERMIONS
HADRON REACTIONS
HADRONS
NEUTRON REACTIONS
NEUTRONS
NUCLEAR REACTIONS
NUCLEON REACTIONS
NUCLEONS
OPTICAL MODELS
PARITY
PARTICLE PROPERTIES
TARGETS
THERMAL NEUTRONS
THORIUM 232 TARGET