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Field redefinitions in effective theories at higher orders

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arxiv 1811.09413 v2 pith:WENWZRQL submitted 2018-11-23 hep-ph

Juan Carlos Criado , Manuel Perez-Victoria This is my paper · ORCID
classification hep-ph
keywords fieldquantumredefinitionseffectivetheoriestheoryattentionclassical
verification ladder T0 review T1 audit T2 compute T3 formal
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The invariance of physical observables under redefinitions of the quantum fields is a well-known and important property of quantum field theory. We study perturbative field redefinitions in effective theories, paying special attention to higher-order effects and their impact on matching to an ultraviolet theory at the classical and quantum levels.

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Cited by 6 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

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  5. Non-injective field redefinitions and quantum inequivalence in scalar theories

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    Pulling a free massive multiplet through a non-injective polynomial field redefinition with unit Jacobian yields a theory that is exactly free on every local sheet but globally not unitarily equivalent to a free theory.

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    A new Mathematica package, mosca, automates tree-level on-shell matching to transform between operator bases and reduce Green's bases to physical bases in EFTs.

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