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Global analysis of DPV decays and SU(3) flavor symmetry breaking effects

  • M. Zhong
  • Y.L. Wu
  • W.Y. Wang
Article

Abstract

We investigate in detail both the Cabibbo-allowed and singly Cabibbo-suppressed DPV decays based on the diagrammatic decomposition in the factorization formalism. Two sets of solutions discarded in the literature are picked up and discussed carefully. It is found that one of these solutions can provide satisfactory explanation in a natural manner on the process \(D^+\to \overline {K}^0K^{*+}\) which is thought to be a puzzle. The relations E V +E P =0 and A V +A P =0 are badly broken, which indicates that the exchange and annihilation diagrams may receive contributions from more sources other than the \(q\overline{q}\) intermediate state interactions. It is shown that, to have a consistent explanation to the experimental data with reasonable values for the parameters a1 and a2, the SU(3) symmetry breaking effects have to be considered. The SU(3) flavor symmetry breaking effects due to mass factors and due to formfactors and decay constants are analyzed in detail.

Keywords

Experimental Data Factorization Formalism Symmetry Breaking Intermediate State Decay Constant 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Copyright information

© Springer-Verlag, Società Italiana di Fisica 2003

Authors and Affiliations

  • M. Zhong
    • 1
  • Y.L. Wu
    • 1
  • W.Y. Wang
    • 2
  1. 1.Institute of Theoretical Physics, Academia Sinica, Beijing 100080China
  2. 2.Department of Physics, Tsinghua University, Beijing 100084China

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