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- W1973088486 abstract "Abstract We present calculations of the axial vector constant g A in models where relativistic quarks are confined by scalar potentials, with special emphasis on center-of-mass corrections and pion cloud effects. It is demonstrated that pionic contributions to g A from a f π ϑ μ φ term in the axial current vanish for finite pion mass. Confining potentials of the form cr n with n = 2, 3 give acceptable values for g A together with quark core radii between 0.5 and 0.6 fm. We also calculate the pion-nucleon coupling constant and establish a connection between g A and the quark core part of the magnetic moment, including center-of-mass corrections. About half of the proton magnetic moment is shown to come from the quark core." @default.
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- W1973088486 date "1983-05-01" @default.
- W1973088486 modified "2023-09-27" @default.
- W1973088486 title "On the axial charge and other static properties of the quark core in nucleons" @default.
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- W1973088486 doi "https://doi.org/10.1016/0370-2693(83)91223-6" @default.
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