Published 1989
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Chiral theory of the Kl3-decay form factors
Description
The form factors of Kl3-decay are evaluated in the framework of theory with effective chiral lagrangian incorporating O± and I± fields. In the model under consideration, a renormalization of mass of pseudoscalar mesons, arising in the standard approach due to mixing δμπ with axial-vector field, is absent. This paper argues against the schemes with such a mixing. This theory predicts for the parameter ξ(0)/f+(0) the value ξ(0)=-0.235. 16 refs
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22007038.pdf
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Additional details
Publishing Information
- Imprint Pagination
- 12 p.
- Report number
- ITEP--122-89
INIS
- Country of Publication
- USSR
- Country of Input or Organization
- USSR
- INIS RN
- 22007038
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Descriptors DEI
- CHIRAL SYMMETRY; FEYNMAN DIAGRAM; FORM FACTORS; KAONS; LAGRANGIAN FUNCTION; MATRIX ELEMENTS; SEMILEPTONIC DECAY
- Descriptors DEC
- BOSONS; DECAY; DIAGRAMS; ELEMENTARY PARTICLES; FUNCTIONS; HADRONS; INFORMATION; MESONS; PARTICLE DECAY; PARTICLE PROPERTIES; PSEUDOSCALAR MESONS; STRANGE MESONS; STRANGE PARTICLES; SYMMETRY; WEAK PARTICLE DECAY