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Charge-Independence Breaking in the Two-Pion-Exchange Nucleon-Nucleon Force

J. L. Friar·U. van Kolck
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Abstract

Charge-independence breaking due to the pion-mass difference in the (chiral) two-pion-exchange nucleon-nucleon force is investigated. A general argument based on symmetries is presented that relates the charge-symmetric part of that force to the proton-proton case. The static potential linear in that mass difference is worked out as an explicit example by means of Feynman diagrams, and this confirms the general argument.

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J. L. Friar, U. van Kolck. 1999-06-15. Charge-Independence Breaking in the Two-Pion-Exchange Nucleon-Nucleon Force. https://doi.org/10.1103/physrevc.60.034006

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