Nucleon Form-Factor Sum Rules from the Nonforward Retarded Commutator
- 25 January 1967
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 153 (5) , 1652-1656
- https://doi.org/10.1103/physrev.153.1652
Abstract
Using the equal-time commutators for current densities at equal times, five sum rules involving the nucleon from factors are derived by considering the Fourier transform of the retarded commutator of the currents evaluated between nucleon states of nonequal momenta. This leads to sum rules that contain not only the masses of the external vector particles, but also the momentum transfers, which give new sum rules and generalize previous sum rules.Keywords
This publication has 6 references indexed in Scilit:
- Low-Energy Theorem for Non-Abelian Compton Effect and Magnetic-Moment Sum RulesPhysical Review B, 1966
- Applications of the ChiralAlgebra of Current DensitiesPhysical Review B, 1966
- Almost Exact Sum Rules for Nucleon Moments from an Infinite-Dimensional AlgebraPhysical Review Letters, 1966
- Equal-time commutators and dispersion relationsIl Nuovo Cimento A (1971-1996), 1966
- Local commutation relations of vector and axial currents and their approximate saturationIl Nuovo Cimento A (1971-1996), 1966
- Sum rule for the isovector magnetic moment of the nucleonPhysics Letters, 1966