QCD Probes of pseudoscalar-meson charge radii and a critique of their possible sum rules
Within the quantum-chromodynamics (QCD) framework, using the Goldberger-Treiman (GT) relation at the quark level, the charge radii of the heavier pseudoscalar mesons including B/sup +/, B/sup 0/, B/sub s//sup 0/, and B/sub c//sup +/ have been obtained. The lower bounds on the pion charge radius in QCD and extended vector-dominance model (EVDM) are evaluated, which resolves the controversy over different experimental findings and favors the experimental result of Quenzer et al. Pseudoscalar-meson charge-radius sum rules have been exhaustively tested by our predictions and also by other available results. From our analysis we conclude that QCD and the vector-dominance model are complementary to each other.
- Research Organization:
- Department of Theoretical Physics, Indian Association for the Cultivation of Science, Jadavpur, Calcutta 700032, India
- OSTI ID:
- 7075004
- Journal Information:
- Hadronic J.; (United States), Vol. 9:3
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
PSEUDOSCALAR MESONS
PARTICLE RADII
QUANTUM CHROMODYNAMICS
SUM RULES
VECTOR DOMINANCE MODEL
B MESONS
D MESONS
F MESONS
GOLDBERGER-TREIMAN RELATION
KAONS
PIONS
QUARK MODEL
BOSONS
CHARM PARTICLES
CHARMED MESONS
COMPOSITE MODELS
ELEMENTARY PARTICLES
EQUATIONS
FIELD THEORIES
HADRONS
MATHEMATICAL MODELS
MESONS
PARTICLE MODELS
PARTICLE PROPERTIES
QUANTUM FIELD THEORY
STRANGE MESONS
STRANGE PARTICLES
645204* - High Energy Physics- Particle Interactions & Properties-Theoretical- Strong Interactions & Properties
645400 - High Energy Physics- Field Theory