The u-d quark mass difference and nuclear charge symmetry breaking

摘要

The group theoretical analysis of the Coleman-Glashow tadpole picture of "meson-mixing" is quantitatively reproduced by the u - d constituent quark mass difference in quantum loop calculations of the self-energies of mesons. This demonstration that the Coleman-Glashow scales can be directly calculated from the constituent u - d quark mass difference finishes the link between charge symmetry breaking in low energy nuclear physics and the u - d quark mass difference in particle physics. [References: 31]