Probes for the Constituents of the Electromagnetic Current and Anomalous Commutators

5 May 1969

journal article
research article
Published by American Physical Society (APS) in Physical Review Letters

Vol. 22 (18) , 975-977
https://doi.org/10.1103/physrevlett.22.975

Abstract

It is shown that the Callan-Gross sum rules for electroproduction fail in perturbation theory. Nonperturbative lepton annihilation sum rules are derived. The inapplicability of perturbation theory is traced to the breakdown of the Johnson-Low-Bjorken high-energy theorem.

Keywords

BREAKDOWN
PERTURBATION THEORY
JOHNSON
CALLAN GROSS
SUM RULES
GROSS SUM
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This publication has 3 references indexed in Scilit:

High-Energy Electroproduction and the Constitution of the Electric Current
Physical Review Letters, 1969
Applications of the Chiral $U (6) \otimes U (6)$ Algebra of Current Densities
Physical Review B, 1966
Current Algebras in a Simple Model
Progress of Theoretical Physics Supplement, 1966