Features of pion-nucleon scattering with nucleons as chiral solitons

Publikation: Beitrag in FachzeitschriftArtikelBegutachtung

16 Zitate (Scopus)

Abstract

We show that after simultaneous quantization of the rotational and translational collective degrees of freedom of chiral solitons, the p-wave pion-nucleon scattering amplitude can be generated in close analogy with the phenomenologically successful Δ-isobar model. In particular, the Δ-decay width arises naturally. We also comment on the usual background scattering method and find that the absence of the Δ resonance in this approach is closely related to the fact that the value of the axial vector coupling constant gA comes out too small. We discuss this in the context of the Adler-Weisberger sum rule. We also comment on some problems in s-wave πN scattering.

OriginalspracheEnglisch
Seiten (von - bis)602-618
Seitenumfang17
FachzeitschriftNuclear Physics, Section A
Jahrgang490
Ausgabenummer3
DOIs
PublikationsstatusVeröffentlicht - 26 Dez. 1988

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