On the role of isospin violation in the pion–nucleon σ-term

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Authors: Hoferichter, Martin; Ruiz de Elvira, Jacobo; Kubis, Bastian; Meißner, Ulf-G.

Journal title: Physics Letters B

Journal publisher: Elsevier Science

Published year: 2023

DOI identifier: 10.1016/j.physletb.2023.138001

ISSN: 1873-2445