Studies of the QCD and QED effects on Isospin breaking
نویسنده
چکیده
The isopin breaking effect due to different masses and electric charges between up/down quarks are stuided non-perturbatively using lattice QCD+QED. Up, down, and strange quark masses are determined using K±,K0, and π± meson masses as inputs. The charge splitting of Kaon mass, mK± −mK0 , is broken up into the part coming from up, down quark mass difference and that from electromagnetic effects. We also report about the neucleon/proton mass splittings as well as other recent studies of isospin breakings on lattice.
منابع مشابه
Isospin symmetry breaking
We discuss the separation of isospin-symmetric and isospin-breaking contributions in the hadronic observables within the framework of QCD plus QED. Further, we briefly review some recent work on the low-energy hadron phenomenology, in which the isospin-breaking effect plays a prominent role.
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