Symmetry, Superconvergence, and Sum Rules for Spectral Functions
Authors:
- 1 May 1967
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 18 (18) , 761-764
Abstract
We discuss the convergence and the superconvergence properties of the invariant amplitudes which occur in suitable combinations of the propagator functions of the vector and the axial-vector currents, based on the use of symmetry arguments for the asymptotic behavior. The sum rules so obtained for the spectral functions are in good agreement with experiment.Keywords
This publication has 5 references indexed in Scilit:
- Precise Relations between the Spectra of Vector and Axial-Vector MesonsPhysical Review Letters, 1967
- Algebra of Current Components and Decay Widths ofandMesonsPhysical Review B, 1966
- Form FactorsPhysical Review Letters, 1966
- Partially Conserved Axial-Vector Current and the Decays of Vector MesonsPhysical Review Letters, 1966
- Nonrenormalization Theorem for the Strangeness-Violating Vector CurrentsPhysical Review Letters, 1964