Journal
JOURNAL OF HIGH ENERGY PHYSICS
Volume -, Issue 5, Pages -Publisher
SPRINGER
DOI: 10.1007/JHEP05(2017)026
Keywords
Gauge Symmetry; Higher Spin Gravity; Higher Spin Symmetry; Scattering Amplitudes
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Funding
- Fund for Scientific Research-FNRS Belgium [FC 6369]
- Russian Science Foundation [14-42-00047]
- Lebedev Physical Institute
- Russian Science Foundation [17-42-00002] Funding Source: Russian Science Foundation
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Owing to a renewed interest in flat space higher spin gauge theories, in this note we provide further details and clarifications on the results presented in arXiv: 1107.5843 and arXiv: 1209.5755, which investigated their locality properties. Focusing, for simplicity, on quartic couplings with one of the external legs having non-zero integer spin (which can be considered as a prototype for Weinberg-type arguments), we review the appearance of 1/square non-localities. In particular, we emphasise that it appears to be not possible to eliminate all of the aforementioned non-localities in the general quartic Noether procedure solution with a judicious choice of coupling constants and spectrum. We also discuss the light-cone gauge fixing in d = 4, and argue that the non-local obstruction discussed in the covariant language cannot be avoided using light-cone gauge formalism.
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