Effective chiral Lagrangian with baryons
Journal Article
·
· Phys. Rev. D; (United States)
We use Ioffe's method of constructing (local) baryon field operators in terms of quarks to derive an effective chiral Lagrangian with U(3) x U(3) symmetry consisting of the J/sup P/ = (1/2)/sup +/ baryon octet, the J/sup P/ = (1/2)/sup -/ baryon nonet, and the pseudoscalar-meson nonet. This formalism leads to a set of generalized Goldberger-Treiman relations of the form F/sub ..pi../g/sub ..pi..//sub B>//sub +- /B/sub +- //sub =/approx.(M/sub +- /+M/sub +- /), F/sub ..pi../g/sub ..pi..//sub B>+/B/sub =/ approx.(M/sub +/-M/sub -/). We enumerate all nonvanishing three-point pseudoscalar-baryon couplings and use the g/sub ..pi..//sub B//sub >+/B/sub =/ couplings to study the decays B/sub -/..-->..B/sub +/..pi... We explain why the negative-parity isodoublet N(1535) decays predominantly into Neta, as opposed to N..pi.., even though relatively suppressed by phase space.
- Research Organization:
- Department of Theoretical Physics, Institute of Advanced Studies, The Australian National University, G.P.O. Box 4, Canberra, Australian Capital Territory 2601, Australia and Department of Physics, University of Western Australia, Nedlands, Western Australia 6009, Australia
- OSTI ID:
- 6004857
- Journal Information:
- Phys. Rev. D; (United States), Journal Name: Phys. Rev. D; (United States) Vol. 35:1; ISSN PRVDA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
645400* -- High Energy Physics-- Field Theory
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANGULAR MOMENTUM
B MESONS
BARYONS
BOSONS
CHIRAL SYMMETRY
ELEMENTARY PARTICLES
FERMIONS
FIELD THEORIES
FUNCTIONS
GAUGE INVARIANCE
GOLDBERGER-TREIMAN RELATION
HADRONS
INVARIANCE PRINCIPLES
LAGRANGIAN FUNCTION
LATTICE FIELD THEORY
LIE GROUPS
LORENTZ INVARIANCE
MATHEMATICAL SPACE
MESONS
N-1535 RESONANCES
PARITY
PARTICLE PROPERTIES
PHASE SPACE
POSTULATED PARTICLES
PSEUDOSCALAR MESONS
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
QUARKS
SPACE
SPIN
SYMMETRY
SYMMETRY BREAKING
SYMMETRY GROUPS
U GROUPS
U-3 GROUPS
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANGULAR MOMENTUM
B MESONS
BARYONS
BOSONS
CHIRAL SYMMETRY
ELEMENTARY PARTICLES
FERMIONS
FIELD THEORIES
FUNCTIONS
GAUGE INVARIANCE
GOLDBERGER-TREIMAN RELATION
HADRONS
INVARIANCE PRINCIPLES
LAGRANGIAN FUNCTION
LATTICE FIELD THEORY
LIE GROUPS
LORENTZ INVARIANCE
MATHEMATICAL SPACE
MESONS
N-1535 RESONANCES
PARITY
PARTICLE PROPERTIES
PHASE SPACE
POSTULATED PARTICLES
PSEUDOSCALAR MESONS
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
QUARKS
SPACE
SPIN
SYMMETRY
SYMMETRY BREAKING
SYMMETRY GROUPS
U GROUPS
U-3 GROUPS