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arXiv · 1307.3311

Light quark pseudoscalar densities and anomaly matrix elements for η and η' mesons

Janardan Prasad Singh
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Abstract

Matrix elements of flavor-diagonal light quark pseudoscalar densities and axial anomaly operators between vacuum and η and η' meson states have been determined. This has been done by evaluating current-current correlators of octet-octet and octet-singlet axial currents using QCD sum rules. The numerical values obtained for the matrix elements compare well with those obtained in the current literature.

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Janardan Prasad Singh. 2013-10-31. Light quark pseudoscalar densities and anomaly matrix elements for η and η' mesons. https://arxiv.org/abs/1307.3311

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