Phenomenological Aspects of Isospin Violation in the Nuclear Force

J.L. Friar; T. Goldman; U. van Kolck

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Phenomenological Aspects of Isospin Violation in the Nuclear Force

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arxiv nucl-th/9601009 v1 pith:QGRRAQ46 submitted 1996-01-09 nucl-th hep-ph

U. van Kolck , J.L. Friar , T. Goldman This is my paper · ORCID

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keywords constantscouplingforceisospinmeson-mixingmodelsphenomenologicalviolation

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abstract

Phenomenological Lagrangians and dimensional power counting are used to assess isospin violation in the nucleon-nucleon force. The $\pi NN$ coupling constants (including the Goldberger-Treiman discrepancy), charge-symmetry breaking, and meson-mixing models are examined. A one-loop analysis of the isospin-violating $\pi NN$ coupling constants is performed using chiral perturbation theory. Meson-mixing models and the $^3$He - $^3$H mass difference are also discussed in the context of naturalness.

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