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Massive higher spins: effective theory and consistency

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.
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Contributor : Bruno Savelli Connect in order to contact the contributor
Submitted on : Monday, October 17, 2022 - 2:14:07 PM
Last modification on : Wednesday, October 19, 2022 - 3:55:12 AM


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Brando Bellazzini, Francesco Riva, Javi Serra, Francesco Sgarlata. Massive higher spins: effective theory and consistency. Journal of High Energy Physics, 2019, 2019, pp.189. ⟨10.1007/JHEP10(2019)189⟩. ⟨cea-02438444v3⟩



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