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

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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 gDDV and fD*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 β and λ respectively in the heavy quark effective Lagrangian; our numerical values are smaller than the existing estimations.

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Authors and Affiliations

  1. Department of Physics, North China Electric Power University, Baoding, 071003, P.R. China

    Zhi-Gang Wang

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  1. Zhi-Gang Wang
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Correspondence to Zhi-Gang Wang.

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PACS

12.38.Lg; 13.20.Fc

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Wang, ZG. Analysis of the vertices DDV and D*DV with light-cone QCD sum rules. Eur. Phys. J. C 52, 553–560 (2007). https://doi.org/10.1140/epjc/s10052-007-0404-6

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  • DOI: https://doi.org/10.1140/epjc/s10052-007-0404-6

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