f_K/f_pi ratio from QCD sum rules
Nuclear Theory
2008-11-26 v3 High Energy Physics - Phenomenology
Abstract
Using the correlation function of the axial vector mesons, we present a QCD sum rule calculation for the decay constants f_pi and f_K. Our calculations are only weakly dependent on the SU(3) breaking-parameter for the QCD vacuum and give the ratio f_K/f_pi = 1.11 0.02.
Keywords
Cite
@article{arxiv.nucl-th/9708042,
title = {f_K/f_pi ratio from QCD sum rules},
author = {Seungho Choe and Su Houng Lee},
journal= {arXiv preprint arXiv:nucl-th/9708042},
year = {2008}
}
Comments
revtex, 17 pages; erratum (with a more detailed analysis) added. results are slightly changed