Light quark pseudoscalar densities and anomaly matrix elements for {\eta} and {\eta}' mesons
High Energy Physics - Phenomenology
2013-11-01 v2
Abstract
Matrix elements of flavor-diagonal light quark pseudoscalar densities and axial anomaly operators between vacuum and {\eta} and {\eta}' 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.
Keywords
Cite
@article{arxiv.1307.3311,
title = {Light quark pseudoscalar densities and anomaly matrix elements for {\eta} and {\eta}' mesons},
author = {Janardan Prasad Singh},
journal= {arXiv preprint arXiv:1307.3311},
year = {2013}
}
Comments
10 pages, 12 figures, LaTex, typos added, one table replaced; to be published in Physical Review D