Abstract
Sometime ago, Das, Mathur and Okubo1> derived and generalised Weinberg's spectral function sum rules1> for the vector and axial,vector currents, on the basis of the asymtotic properties of the propagation functions for the currents, as suggested by symmetry groups. It was noted, 3> however, that both the sum rules should not be used simultaneously as the results thus obtained were in disagreement with experiment. In this note we shall assume a modified form of the second sum rule corresponding to chiral SU (2) X SU (2) along with the first one in the original form. For SU(3) symmetry, we shall consider only the first sum rule. For the particular SU (2) X SU (2) subgroup of chiral SU (3) X SU (3) pertaining to the strangeness changing vector and axial-vector currents, the relations are:
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
