Hadronic Structure – Reactions, Production and DecaysNo Access

RESONANCES AND WEAK INTERACTIONS IN D⁺→ π⁺π⁻π⁺ DECAYS

Instituto de Física, Universidade de São Paulo, C.P. 66318, São Paulo, SP 05315-970, Brazil

LPNHE-Laboratoire de Physique Nucléaire et de Hautes Énergies, Groupe Théorie, IN2P3-CNRS, Universités P. & M. Curie et Denis Diderot, 4 Pl. Jussieu, 75252 Paris, France

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BENOÎT LOISEAU

LPNHE-Laboratoire de Physique Nucléaire et de Hautes Énergies, Groupe Théorie, IN2P3-CNRS, Universités P. & M. Curie et Denis Diderot, 4 Pl. Jussieu, 75252 Paris, France

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OLIVIER LEITNER

LPNHE-Laboratoire de Physique Nucléaire et de Hautes Énergies, Groupe Théorie, IN2P3-CNRS, Universités P. & M. Curie et Denis Diderot, 4 Pl. Jussieu, 75252 Paris, France

INFN, Laboratori Nazionali di Frascati, via E. Fermi, 40, 00044 Frascati (RM), Italy

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https://doi.org/10.1142/S0218301307008628Cited by:1 (Source: Crossref)

Abstract

We describe the ππS-wave in D⁺→ π⁺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.