Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2007-05-31
Int.J.Mod.Phys.E16:2876-2879,2007
Physics
High Energy Physics
High Energy Physics - Phenomenology
4 pages. Contribution to the X Hadron Physics, Florianopolis-Brazil, March 26-31, 2007
Scientific paper
10.1142/S0218301307008628
We describe the $\pi\pi$ $S$-wave in $D^+ \to\pi^+ \pi^- \pi^+$ decays using a unitary model for the $\pi\pi$ 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.
Boito Diogo R.
El-Bennich Bruno
Leitner Olivier
Loiseau Benoit
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