The $g_{{\mathrm{\Sigma }}_Q{\mathrm{\Sigma }}_Q\pi }$ Coupling Constant via Light Cone QCD Sum Rules

Using the most general form of the interpolating currents, the coupling constants $g_{{\mathrm{\Sigma }}_b{\mathrm{\Sigma }}_b\pi }$ and $g_{{\mathrm{\Sigma }}_c{\mathrm{\Sigma }}_c\pi }$ are calculated within the light cone QCD sum rules approach. It is found that $g_{{\mathrm{\Sigma }}_c{\mathrm{\Sigma }}_c\pi }=-8.0\pm 1.7$ and $g_{{\mathrm{\Sigma }}_b{\mathrm{\Sigma }}_b\pi }=-11.0\pm 2.1$.