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2009-03-23
Isospin breaking in the pion-nucleon scattering lengths
Martin HoferichterBastian KubisUlf-G. Meißner
文献摘要
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 chiral perturbation theory.
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