Non-Lagrangian gauge field models are physically excluded

While non-action-generated, but identically conserved, abelian/YM gauge vectors exist, they are unsuitable for building alternate field equations, because they have no stress-tensor, hence do not permit Poincare generators and, most physically, cannot consistently couple to gravity. Separately, thei...

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Bibliographic Details
Main Author: S. Deser
Format: Article
Language:English
Published: Elsevier 2019-03-01
Series:Physics Letters B
Online Access:http://www.sciencedirect.com/science/article/pii/S0370269319300693