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IHEP 96 - 41
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| V.V. Kiselev | ||
| Hard approximation in two-particle hadronic decays of Bc at large recoils | ||
| Protvino, 1996.- p.41, figs 1, refs.:29. | ||
The two-particle decays of $B_c^+\to \psi \pi^+(\rho^+)$ and $B_c^+\to \eta_c \pi^+(\rho^+)$ are considered taking into account a soft binding of quarks in the heavy quarkonia and a hard gluon exchange between the constituents at large recoil momenta of $\psi(\eta_c)$. An approximate double enhancement of the amplitudes because of the nonspectator $t$-channel contribution has been found
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