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Isospin-breaking corrections to the pion-nucleon scattering lengths
Martin Hoferichter, Bastian Kubis, Ulf-G. Meißner
We analyze isospin breaking through quark mass differences and virtual photons in the pion-nucleon scattering lengths in all physical channels in the framework of covariant baryon…
Isospin violation in low-energy pion-nucleon scattering revisited
Martin Hoferichter, Bastian Kubis, Ulf-G. Meißner
We calculate isospin breaking in pion-nucleon scattering in the threshold region in the framework of covariant baryon chiral perturbation theory. All effects due to quark mass diff…
Isospin breaking in the pion-nucleon scattering lengths
Martin Hoferichter, Bastian Kubis, Ulf-G. Meißner
We analyze isospin breaking through quark mass differences and virtual photons in the pion-nucleon scattering lengths in all physical channels in the framework of covariant baryon…