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Charge symmetry breaking in pion-nucleon coupling constant : QCD sum rule approach

J. P. Singh·Alka Upadhyay
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Abstract

Using the vacuum-to-pion matrix element of the correlation function of the interpolating fields of the two nucleons, the isospin splitting in the diagonal pion-nucleon coupling constant has been studied in the framework of the conventional QCD sum rule. Some of the implications of this splitting has also been discussed.

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J. P. Singh, Alka Upadhyay. 2004-06-17. Charge symmetry breaking in pion-nucleon coupling constant : QCD sum rule approach. https://doi.org/10.1088/0954-3899%2F31%2F0%2F000

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