Analysis of the vertices $DDV$ and $D^*DV$ with light-cone QCD sum rules

Details Analysis of the vertices $DDV$ and $D^*DV$ with light-cone QCD sum rules Analysis of the vertices $DDV$ and $D^*DV$ with light-cone QCD sum rules

2007-05-25

arxiv.org/abs/0705.3720v3

Eur.Phys.J.C52:553-560,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

16 pages, 6 figures, revised version

Scientific paper

10.1140/epjc/s10052-007-0404-6

In this article, we study the vertices $DDV$ and $D^*DV$ with the light-cone QCD sum rules. The strong coupling constants $g_{DDV}$ and $f_{D^*DV}$ play an important role in understanding the final-state re-scattering effects in the hadronic B decays. They are related to the basic parameters $\beta$ and $\lambda$ respectively in the heavy quark effective Lagrangian, our numerical values are smaller than the existing estimations.

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