Heavy Hadron Form Factor Relations for mc≠∞m_c\ne\infty and $\bas(m_c)\ne0$

preprint1992arXivOpen access

Abstract

First order power corrections to current matrix elements between heavy meson or $Λ_\Q$ baryon states are shown to vanish at the zero recoil point to all orders in QCD. Five relations among the six form factors that parametrize the semileptonic decay Λb→Λceν‾Λ_b \to Λ_c e \overlineν are also demonstrated to exist to all orders in the strong coupling at order $1/\mQ$ . The $O(\bas(m_c)/m_c)$ form factor relations are displayed.

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