ar X iv : h ep - p h / 02 01 16 8 v 1 1 8 Ja n 20 02 BIHEP - TH - 2002 - 7 D → ππ decays with Final State Interactions

  • Dong-Sheng Du, M. Yang
  • Published 2002

Abstract

We study D → ππ decays with final state interactions considered in one-particleexchange method. A clear physical picture for final state interactions based on quark and hadronic level diagrams is presented. A strong phase is introduced for hadronic effective couplings, which is crucial for explaining the experimental data of D+ → π+π0, D0 → π+π−, and D0 → π0π0. Rescattering effects between different D decay channels are usually large. They are important for obtaining correct branching ratios for D → ππ decays in theoretical calculation.

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Cite this paper

@inproceedings{Du2002arXI, title={ar X iv : h ep - p h / 02 01 16 8 v 1 1 8 Ja n 20 02 BIHEP - TH - 2002 - 7 D → ππ decays with Final State Interactions}, author={Dong-Sheng Du and M. Yang}, year={2002} }