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arXiv · 1912.10018

Positivity Constraints on Interacting Pseudo-Linear Spin-2 Fields

Lasma Alberte·Claudia de Rham·Arshia Momeni·Justinas Rumbutis·Andrew J. Tolley
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Abstract

We explore the effective field theory for single and multiple interacting pseudo-linear spin-2 fields. By applying forward limit positivity bounds, we show that among the parameters contributing to elastic tree level scattering amplitude, there is no region of compatibility of the leading interactions with a standard local UV completion. Our result generalizes to any number of interacting pseudo-linear spin-2 fields. These results have significant implications for the organization of the effective field theory expansion for pseudo-linear fields.

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Lasma Alberte, Claudia de Rham, Arshia Momeni, Justinas Rumbutis, Andrew J. Tolley. 2019-12-20. Positivity Constraints on Interacting Pseudo-Linear Spin-2 Fields. https://doi.org/10.1007/jhep07(2020)121

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