6533b7dbfe1ef96bd1271331
RESEARCH PRODUCT
Considerations concerning the renormalization of the electroweak sector of the standard model
A. Sirlinsubject
RenormalizationPhysicsNuclear and High Energy PhysicsCurrent (mathematics)Simple (abstract algebra)Quantum electrodynamicsElectroweak interactionStructure (category theory)Vertex (curve)PropagatorMathematical physicsStandard Modeldescription
Abstract Examination of the structure of one-loop corrected amplitudes for arbitrary processes mediated by W, Z and γ in the simple renormalization framework previously discussed by the author, leads to natural choices for the renormalized self-energies and vertex corrections. They satisfy simple renormalization conditions and, as q2 → 0, the W and Z propagators approach the free expressions with a correction of O(αq2/mW2). The renormalization conditions allow us to circumvent certain ambiguities that arise, to O(α2), in current analyses of Δr and κ(q2). A useful simplified form for the Z propagator is presented.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1990-02-01 | Nuclear Physics B |