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Second Class Current in QCD Sum Rules

H. Shiomi
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Abstract

Induced tensor charge of the nucleon $g_T$, which originates from G-parity violation, is evaluated from QCD sum rules. We find that $g_T/g_A$ with $g_A$ being the axial charge is $ -$0.0152 $\pm$ 0.0053 which is proportional to u-d quark mass difference. This result is small compared to preliminary analysis of the experiment, but is consistent with the estimate in the MIT bag model.

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H. Shiomi. 1996-01-24. Second Class Current in QCD Sum Rules. https://doi.org/10.1016/0375-9474(96)80003-a

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