Pionic retardation effects in two-pion-exchange three-nucleon forces

Journal Article · Mon Sep 01 00:00:00 EDT 1986 · Phys. Rev. C; (United States)

DOI:https://doi.org/10.1103/PhysRevC.34.1060· OSTI ID:5105546

Coon, S A; Friar, J L

Those two-pion-exchange three-nucleon forces which arise from nuclear processes that involve only pions and nucleons are calculated. Among the processes which contribute are pion seagulls (e.g., nucleon-antinucleon pair terms) and overlapping, retarded pion exchanges. The resulting potential is shown to be a (v-italic/c-italic)/sup 2/ relativistic correction, and satisfies nontrivial constraints from special relativity. The relativistic ambiguities found before in treatments of relativistic corrections to the one-pion-exchange nuclear charge operator and two-body potential are also present in the three-nucleon potential. The resulting three-nucleon force differs from the original Tucson-Melbourne potential only in the presence of several new nonlocal terms, and in the specification of the choice of ambiguity parameters in the latter potential.

• Research Organization: Department of Physics, University of Arizona, Tucson, Arizona 85721
• OSTI ID: 5105546
• Journal Information: Phys. Rev. C; (United States), Vol. 34:3
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
NUCLEON-NUCLEON POTENTIAL
BOSON-EXCHANGE MODELS
THREE-BODY PROBLEM
CHIRAL SYMMETRY
COUPLING CONSTANTS
MATRIX ELEMENTS
RELATIVITY THEORY
RENORMALIZATION
SCHROEDINGER EQUATION
SYMMETRY BREAKING
DIFFERENTIAL EQUATIONS
EQUATIONS
FIELD THEORIES
GENERAL RELATIVITY THEORY
MANY-BODY PROBLEM
MATHEMATICAL MODELS
PARTIAL DIFFERENTIAL EQUATIONS
PARTICLE MODELS
PERIPHERAL MODELS
POTENTIALS
SYMMETRY
WAVE EQUATIONS
653007* - Nuclear Theory- Nuclear Models- (-1987)