Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1995-12-08
Phys.Lett. B372 (1996) 299-305
Physics
High Energy Physics
High Energy Physics - Phenomenology
8 pages, latex, two figures in a separate uuencoded file. Submitted to Phys.Lett.B
Scientific paper
10.1016/0370-2693(96)00043-3
The flavour dependence of the mixed quark-gluon condensate is studied through the analysis of correlators of the hybrid current $a_{\mu}=g\bar s\gamma_{\rho}\gamma_5 G_{\rho\mu}d$. The flavour symmetry breaking for this type of condensates is found to be less than that for the quark condensates. For the ratio of strange to nonstrange condensates we obtain \mbox{$R=0.95\pm 0.15$}. For the kaon coupling to the current $a_\mu$ we find $\delta'^2=(0.020\pm0.005)GeV^2$, which is an order of magnitude smaller than analogous chirally unsuppressed coupling.
Aladashvili Ketino
Margvelashvili Murman
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