Publication : t19/022

Massive Higher Spins: Effective Theory and Consistency

Bellazzini B. (CEA, IPhT (Institut de Physique Théorique), F-91191 Gif-sur-Yvette, France)
Riva F. (CERN Physics Department, Theory Division, CH-1211 Geneva 23 Switzerland)
Sgarlata, F. (SISSA International School for Advanced Studies, Via Bonomea 265, 34136, Trieste, Italy)
Abstract:
We construct the effective field theory for a single massive higher-spin particle in flat spacetime. Positivity bounds of the S-matrix force the cutoff of the theory to be well below the naive strong-coupling scale, forbid any potential and make therefore higher-derivative operators important even at low energy. As interesting application, we discuss in detail the massive spin-3 theory and show that an extended Galileon-like symmetry of the longitudinal modes, even with spin, emerges at high energy.
Année de publication : 2019
Revue : JHEP 189 (2019)
DOI : https://doi.org/10.1007/JHEP10(2019)189
Preprint : arXiv:1903.08664
Lien : https://link.springer.com/article/10.1007/JHEP10(2019)189
Langue : Anglais

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