Three-body unitarity and the K-matrix analyses of dibaryon resonances
Journal Article
·
· Phys. Rev. C; (United States)
We derive a K-matrix expression starting with three-body unitarity. This is then used to parametrize the results of a Faddeev ..pi..d..--> pi..d calculation whose poles are known. We find that the K-matrix method is unable to reproduce the known pole in the system when the width of that pole is greater than the width of the ..delta.. resonance. This is explainable in terms of the approximations used in deriving the K matrix.
- Research Organization:
- School of Physical Sciences, The Flinders University of South Australia, Bedford Park, South Australia 5042, Australia
- OSTI ID:
- 5967559
- Journal Information:
- Phys. Rev. C; (United States), Journal Name: Phys. Rev. C; (United States) Vol. 31:3; ISSN PRVCA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
651215* -- Nuclear Properties & Reactions
A=1-5
Theoretical-- Nuclear Reactions & Scattering-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BARYON RESONANCES
BARYONS
DIBARYON RESONANCES
ELEMENTARY PARTICLES
EQUATIONS
FADDEEV EQUATIONS
FERMIONS
HADRON-HADRON INTERACTIONS
HADRONS
INTERACTIONS
K MATRIX
MANY-BODY PROBLEM
MATHEMATICAL SPACE
MATRICES
MESON-BARYON INTERACTIONS
PARTICLE INTERACTIONS
PHASE SPACE
PION-DEUTERON INTERACTIONS
RESONANCE PARTICLES
S MATRIX
SPACE
THREE-BODY PROBLEM
UNITARITY
A=1-5
Theoretical-- Nuclear Reactions & Scattering-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BARYON RESONANCES
BARYONS
DIBARYON RESONANCES
ELEMENTARY PARTICLES
EQUATIONS
FADDEEV EQUATIONS
FERMIONS
HADRON-HADRON INTERACTIONS
HADRONS
INTERACTIONS
K MATRIX
MANY-BODY PROBLEM
MATHEMATICAL SPACE
MATRICES
MESON-BARYON INTERACTIONS
PARTICLE INTERACTIONS
PHASE SPACE
PION-DEUTERON INTERACTIONS
RESONANCE PARTICLES
S MATRIX
SPACE
THREE-BODY PROBLEM
UNITARITY