# $D^*Dπ$ and $B^*Bπ$ form factors from QCD Sum Rules

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The $H^*H\pi$ form factor for H = B and D mesons is evaluated in a QCD sum rule calculation. We study the Borel sum rule for the three point function of two pseudoscalar and one vector meson currents up to order four in the operator product expansion. The double Borel transform is performed with respect to the heavy meson momenta. We discuss the mo

Author: F. S. Navarra; M. Nielsen; M. E. Bracco; M. Chiapparini; C. L. Schat

Source: https://archive.org/