Violation of unitarity in Weinberg's unified theory with bilinear gauge conditions
The usual formalism for non-Abelian gauge theories is not completely satisfactory. Calculations show that the usual formalism for Weinberg's unified gauge theory with a bilinear gauge condition leads to violation of unitarity, contrary to general formal proofs of unitarity. In contrast, the Lagrange multiplier formalism for this theory gives rise to unitary amplitudes; their unitarity was checked explicitly at the 1-loop and the 2-loop levels. This shows the general validity of the Lagrange multiplier formalism and its advantages over the usual formalism. (auth)
- Research Organization:
- Texas Univ., Austin (USA). Center for Particle Theory
- NSA Number:
- NSA-33-004203
- OSTI ID:
- 4158300
- Report Number(s):
- ORO--3992-235
- Country of Publication:
- United States
- Language:
- English
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