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

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

1992-04-29

arxiv.org/abs/hep-ph/9204237v1

Phys.Lett.B285:153-159,1992

Physics

High Energy Physics

High Energy Physics - Phenomenology

11 pages, 1 figure (included)

Scientific paper

10.1016/0370-2693(92)91315-Z

First order power corrections to current matrix elements between heavy meson or $\Lambda_\Q$ 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 $\Lambda_b \to \Lambda_c e \overline{\nu}$ 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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