Electromagnetic hadron mass differences and estimation of isotopic symmetry violation parameters of QCD vacuum from quark modelстатья
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Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
Аннотация:The estimations of the light quark mass differences, md -- mu, and the light quark condensate
differences, <DD> - <UU>, are obtained in the framework of the quark model with QCD vacuum
induced quark interaction. We consider long-wave condensate and short-wave instanton contributions to the electromagnetic hadron mass differences and show that the latter significantly improve the results on the baryon octet. The results are: md -- mu ~ 3.5 MeV and <DD> - <UU> ~ -(0-3) X 10-3 <UU>.