Chiral Effective Field Theory in the Delta-resonance region
Vladimir Pascalutsa
Abstract
I discuss the problem of constructing an effective low-energy theory in the vicinity of a resonance or a bound state. The focus is on the example of the Δ(1232), the lightest resonance in the nucleon sector. Recent developments of the chiral effective-field theory in the Δ-resonance region are briefly reviewed. I conclude with a comment on the merits of the manifestly covariant formulation of chiral EFT in the baryon sector.
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