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For the heavy baryons $\Xi_c$ and $\Xi_b$ the coupling constants  $g_{\Xi_c\Xi_c\pi}$ and $g_{\Xi_b\Xi_b\pi}$ are calculated in the frameworkof light cone QCD sum rules. The most general form of the interpolating fieldof $\Xi_Q$ is used in the calculation.

Light cone QCD sum rules for the $g_{\Xi_Q\Xi_Q\pi}$ coupling constant