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Article overview
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Positivity bounds in vector theories | Claudia de Rham
; Laura Engelbrecht
; Lavinia Heisenberg
; Alice Lüscher
; | Date: |
26 Aug 2022 | Abstract: | Assuming unitarity, locality, causality, and Lorentz invariance of the,
otherwise unknown, UV completion, we derive a new set of constraints on the
effective field theory coefficients for the most general, ghost-free
Generalized Proca and Proca Nuevo massive vector models. For the Generalized
Proca model, we include new interactions that had not been previously
considered in the context of positivity bounds and find these additional terms
lead to a widened parameter space for the previously considered interactions.
Although, the Generalized Proca and Proca Nuevo models are inequivalent, we
find interesting analogues between the coefficients parameterizing the two
models and the roles they play in the positivity bounds. | Source: | arXiv, 2208.12631 | Services: | Forum | Review | PDF | Favorites |
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