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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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Preprints, Working Papers, ...
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Submitted on : Tuesday, January 14, 2020 - 3:19:07 PM
Last modification on : Saturday, April 2, 2022 - 3:37:55 AM
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Brando Bellazzini, Francesco Riva, Javi Serra, Francesco Sgarlata. Massive Higher Spins: Effective Theory and Consistency. 2020. ⟨cea-02438444v2⟩



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