A Comment on the Higher-Spin Gauge Models
Ryota Fujii, Makoto Sakaguchi
TL;DR
This paper analyzes higher-spin gauge models, demonstrating that models free on-shell with BRST-exact cubic vertices are also free off-shell, by relating the deformation derivative of the action to an exact term.
Contribution
It proves that certain higher-spin gauge models are free both on-shell and off-shell using BRST symmetry and deformation theory.
Findings
Models with BRST-exact cubic vertices are off-shell free.
The derivative of the deformed action relates to an exact term.
Off-shell and on-shell freedom are equivalent in these models.
Abstract
We examine the higher-spin gauge models which are free on-shell and whose cubic vertex is BRST-exact. We show that these are free off-shell as well as on-shell. The key equation for this relates the derivative of the total deformed action with respect to the deformation parameter to an -exact term.
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Taxonomy
TopicsQuantum Chromodynamics and Particle Interactions · Relativity and Gravitational Theory · Cosmology and Gravitation Theories