Redundancy of the off-shell parameters in chiral effective field theory with explicit spin-3/2 degrees of freedom

Abstract

In this note we prove to all orders in the small scale expansion that all off-shell parameters which appear in the chiral effective Lagrangian with explicit Delta(1232) isobar degrees of freedom can be absorbed into redefinitions of certain low-energy constants and are therefore redundant.

7 pages

References in corpus (2)

• Consistency of the $\pi \Delta$ interaction in chiral perturbation theory
• On-shell consistency of the Rarita-Schwinger field formulation

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