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

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

1999-06-15

arxiv.org/abs/nucl-th/9906048v1

Phys.Rev. C60 (1999) 034006

Physics

Nuclear Physics

Nuclear Theory

10 pages, latex, 1 figure -- epsfig.sty required -- To appear in Phys. Rev. C

Scientific paper

10.1103/PhysRevC.60.034006

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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