Induced parity nonconserving interaction and enhancement of two-nucleon parity nonconserving forces

Journal Article · Wed Mar 01 04:00:00 EST 1995 · Physical Review, C (Nuclear Physics); (United States)

DOI:https://doi.org/10.1103/PhysRevC.51.1521· OSTI ID:6586466

Flambaum, V V; Vorov, O K ^[1]

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1. School of Physics, University of New South Wales, Sydney, 2052, New South Wales (Australia)

The two-nucleon parity nonconserving (PNC) interaction induced by the single-particle PNC weak potential and the two-nucleon residual strong interaction is considered. An approximate analytical formula for this induced PNC interaction (IPNCI) between proton and neutron is derived [[ital Q]([bold r][sigma][sub [ital p]][times][sigma][sub [ital n]])[delta]([bold r][sub [ital p]][minus][bold r][sub [ital n]])], and the interaction constant is estimated. As a result of coherent contributions from the nucleons to the PNC potential, IPNCI is an order of magnitude stronger ([similar to][ital A][sup 1/3]) than the residual weak two-nucleon interaction and has a different coordinate and isotopic structure (e.g., the strongest part of IPNCI does not contribute to the PNC mean field). IPNCI plays an important role in the formation of PNC effects, e.g., in neutron-nucleus reactions. In that case, it is a technical way to take into account the contribution of the distant (small) components of a compound state which dominates the result. The absence of such enhancement ([similar to][ital A][sup 1/3]) in the case of [ital T]- and [ital P]-odd interaction completes the picture.

• OSTI ID: 6586466
• Journal Information: Physical Review, C (Nuclear Physics); (United States), Journal Name: Physical Review, C (Nuclear Physics); (United States) Vol. 51:3; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

663300* -- Nuclear Reactions & Scattering
General-- (1992-)
663430 -- Nucleon-Induced Reactions & Scattering-- (1992-)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BARYON REACTIONS
BARYON-BARYON INTERACTIONS
COMPOUND NUCLEI
HADRON REACTIONS
HADRON-HADRON INTERACTIONS
INTERACTIONS
NEUTRON REACTIONS
NUCLEAR REACTIONS
NUCLEI
NUCLEON REACTIONS
NUCLEON-NUCLEON INTERACTIONS
PARITY
PARTICLE INTERACTIONS
PARTICLE PROPERTIES
VIOLATIONS