Discussion Overview
The discussion revolves around the formulation of Quantum Electrodynamics (QED) using massive photon fields, specifically exploring the implications of treating the photon as a massive vector boson and the associated changes in gauge invariance and propagators. Participants seek to identify the formalism used and request references for further reading on the topic.
Discussion Character
- Exploratory, Technical explanation, Debate/contested
Main Points Raised
- One participant notes that Veltman treats the photon field as a massive vector boson, which alters the propagator and addresses infrared divergences.
- Another participant suggests the term "Proca" as relevant to this formulation.
- A different participant mentions "Stückelberg," indicating that he has shown it is possible to have a gauge theory with massive gauge bosons in the Abelian case.
- There is a request for references that provide detailed discussions on this topic, rather than just brief mentions in textbooks.
Areas of Agreement / Disagreement
Participants present multiple competing views regarding the terminology and frameworks associated with massive photon fields, specifically mentioning both Proca and Stückelberg. The discussion remains unresolved as to which term or framework is more appropriate or widely accepted.
Contextual Notes
There is an indication of uncertainty regarding the appropriate terminology and the depth of available literature on the subject, as well as a reliance on specific interpretations of gauge theories.
Who May Find This Useful
Readers interested in advanced quantum field theory, particularly those exploring alternative formulations of QED and the implications of massive gauge bosons.