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Electromagnetic properties of hadrons via the $u-d$ mass difference and direct photon exchange

R Delbourgo·Dongsheng Liu·M D Scadron
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Abstract

We demonstrate that a $u-d$ mass difference (which we estimate to be about 4 MeV) within quantum loops, can reproduce the effects of the Coleman-Glashow electromagnetic tadpole operator.

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R Delbourgo, Dongsheng Liu, M D Scadron. 1999-02-23. Electromagnetic properties of hadrons via the $u-d$ mass difference and direct photon exchange. https://doi.org/10.1103/physrevd.59.113006

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