Unitarity in gauge theories with nonlinear gauge conditions
Journal Article
·
· Phys. Rev., D, v. 8, no. 8, pp. 2609-2613
We consider the Abelian gauge theories in which the transverse and the longitudinal photons are coupled. The unitarity relation holds because the unwanted absorptive part of the amplitude due to this coupling is canceled by the fictitious particle. It is pointed out that, by introducing the Lagrange multiplier, one can see the cancellations for all orders in perturbation expansions by looking at the equation of motion for the Lagrange multiplier. The possible implication of this on the massless Yang-Milis fields is indicated. (auth)
- Research Organization:
- The Center for Particle Theory, The University of Texas at Austin, Austin, Texas 78712
- Sponsoring Organization:
- USDOE
- NSA Number:
- NSA-29-025922
- OSTI ID:
- 4351388
- Journal Information:
- Phys. Rev., D, v. 8, no. 8, pp. 2609-2613, Journal Name: Phys. Rev., D, v. 8, no. 8, pp. 2609-2613; ISSN PRVDA
- Country of Publication:
- United States
- Language:
- English
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