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Isospin breaking mass differences from QCD

✍ Scribed by P. Pascual; R. Tarrach


Book ID
113344598
Publisher
Elsevier Science
Year
1982
Tongue
English
Weight
218 KB
Volume
116
Category
Article
ISSN
0370-2693

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Isospin symmetry breakings as from QCD s
✍ W-Y.Pauchy Hwang πŸ“‚ Article πŸ“… 1998 πŸ› Elsevier Science 🌐 English βš– 276 KB

We investigate isospin symmetry breakings, especially those connected with pion-nucleon couplings and the neutron-proton mass difference, by making use of the method of QCD sum rules in the presence of an external pion field. Manifestations of such isospin symmetry breakings are examined briefly in