Causal approximation scheme for the commutator of the axial vector-currents
Journal Article
·
· Z. Phys., v. 265, no. 4, pp. 325-334
An approximation scheme which fulfils the causality condition is used to compute the mntrix elements of the commutator of two axial-vector currents between one proton state. The commutator sum ruie is supposed to be saturated by taking into account the nucleon, the N*(3/2, 3/2) resonance, and the partially disconnected pion-proton intermediate states. For the axial current form factors pion pole formulas are assumed. It is shown that only the subtraction constants are relevant for the equal time limit of the commutator and so the equivalence with similar earlier methods is proven. (auth)
- Research Organization:
- Univ., Heidelberg
- NSA Number:
- NSA-29-016946
- OSTI ID:
- 4381412
- Journal Information:
- Z. Phys., v. 265, no. 4, pp. 325-334, Journal Name: Z. Phys., v. 265, no. 4, pp. 325-334; ISSN ZEPYA
- Country of Publication:
- Germany
- Language:
- English
Similar Records
Evaluation of the axial-vector commutator sum rule for pion-pion scattering
Can the axial-vector form factor of the nucleon be determined from pion electroproduction
Partially conserved axial-current, noncanonicality and the sigma commutator
Journal Article
·
Fri Jun 01 00:00:00 EDT 2007
· Physical Review. D, Particles Fields
·
OSTI ID:20929583
Can the axial-vector form factor of the nucleon be determined from pion electroproduction
Journal Article
·
Sun Aug 01 00:00:00 EDT 1976
· Sov. J. Nucl. Phys. (Engl. Transl.); (United States)
·
OSTI ID:7230087
Partially conserved axial-current, noncanonicality and the sigma commutator
Technical Report
·
Mon Dec 31 23:00:00 EST 1979
·
OSTI ID:6479283