B --> D(D^*) Form Factors in a Bethe-Salpeter model

Details B --> D(D^*) Form Factors in a Bethe-Salpeter model B --> D(D^*) Form Factors in a Bethe-Salpeter model

1996-05-25

arxiv.org/abs/hep-ph/9605397v1

Phys.Rev. D55 (1997) 6780-6787

Physics

High Energy Physics

High Energy Physics - Phenomenology

15 pages, 5 figures

Scientific paper

10.1103/PhysRevD.55.6780

We calculate the form factors for the semileptonic decays of the $B$ meson to $D$ and $D^*$ mesons in a Bethe-Salpeter model. We show that our model is consistent with the constraints of Heavy Quark Effective Theory (HQET) and we extract the matrix elements that represent the $1/m_Q$ corrections to the form factors in HQET. With available data, we obtain $V_{cb} $=$ (31.9 \pm 1.4)\times10^{-3}$.

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