Journal of High Energy Physics (May 2024)

Field redefinitions and infinite field anomalous dimensions

  • Aneesh V. Manohar,
  • Julie Pagès,
  • Jasper Roosmale Nepveu

DOI
https://doi.org/10.1007/JHEP05(2024)018
Journal volume & issue
Vol. 2024, no. 5
pp. 1 – 15

Abstract

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Abstract Field redefinitions are commonly used to reduce the number of operators in the Lagrangian by removing redundant operators and transforming to a minimal operator basis. We give a general argument that such field redefinitions, while leaving the S-matrix invariant and consequently finite, lead not only to infinite Green’s functions, but also to infinite field anomalous dimensions γ ϕ . These divergences cannot be removed by counterterms without reintroducing redundant operators.

Keywords