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Resonances and weak interactions in $D^+ topi^+ pi^- pi^+$ decays

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 نشر من قبل Diogo Rodrigues Boito
 تاريخ النشر 2007
  مجال البحث
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We describe the $pipi$ $S$-wave in $D^+ topi^+ pi^- pi^+$ decays using a unitary model for the $pipi$ 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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