Hemmert, TRHolstein, BRKambor, J2024-04-262024-04-261998https://hdl.handle.net/20.500.14394/40912This is the pre-published version which is collected from arXiv. The published version is at http://iopscience.iop.org/0954-3899/24/10/003We demonstrate how heavy mass methods, previously applied to chiral perturbation theory calculations involving the interactions of nucleons and pions, can be generalized to include interactions with the (1232) in a systematic formalism which we call the `small-scale expansion'.Physical Sciences and Mathematicsarticle