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arXiv · 0705.4677

Resonances and weak interactions in $D^+ \toπ^+ π^- π^+$ decays

D. R. Boito·B. El-Bennich·B. Loiseau·O. Leitner
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Abstract

We describe the $ππ$ $S$-wave in $D^+ \toπ^+ π^- π^+$ decays using a unitary model for the $ππ$ Final State Interactions (FSI). The three body decay is treated as a quasi two-body process where, at the weak vertex, the D meson decays into a resonance and a pion. The weak part of the decay amplitude is evaluated using the effective weak Hamiltonian within the factorization approximation.

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D. R. Boito, B. El-Bennich, B. Loiseau, O. Leitner. 2007-05-31. Resonances and weak interactions in $D^+ \toπ^+ π^- π^+$ decays. https://doi.org/10.1142/s0218301307008628

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