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

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arxiv 0705.3720 v3 pith:2M54AZER submitted 2007-05-25 hep-ph

classification hep-ph
keywords light-conerulesverticesanalysisarticlebasicbetaconstants
verification ladder T0 review T1 audit T2 compute T3 formal
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abstract

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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  1. Analysis of the strong vertices $\Lambda_cD^{(*)}N^*(1535)$ and $\Lambda_bB^{(*)}N^*(1535)$ in QCD sum rules

    hep-ph 2025-06 conditional novelty 5.0 of 10

    A QCD sum rule analysis produces masses, pole residues and six on-shell strong coupling constants for the ΛcD(*)N*(1535) and ΛbB(*)N*(1535) vertices.

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