Speaker
Mrs
Karin Fornazier
(ITA Instituto Tecnológico de Aeronáutica)
Description
We develop a relativistic three-model for the final state
interaction in $D^+\to K^+\pi^-\pi^-$ decay based on the ladder
approximation of the Bethe-Salpeter equation. The decay amplitude is separated in a smooth term and a three-body fully interacting contribution, that is factorized in the standard two-meson resonant amplitude times a reduced complex amplitude that carries the effect of the three-body rescattering mechanism. The off-shell reduced complex amplitude is a solution of an inhomogeneous Faddeev type integral equation, that has as input the S-wave isospin 1/2 K^+\pi^- transitiion matrix. The parameters of the S-wave isospin 1/2 K^+\pi^- scattering matrix is fitted to the experimental data.
Author
Mrs
Karin Fornazier
(ITA Instituto Tecnológico de Aeronáutica)
Co-authors
Prof.
Alberto dos Reis
(CBPF)
Prof.
Antonio Delfino
(UFF)
Prof.
Ignacio Bediaga
(CBPF)
Prof.
Lauro Tomio
(IFF e IFT)
Prof.
Manuel Robillota
(IFUSP)
Ms
Patricia Magalhães
(IFUSP)
Prof.
Tobias Frederico
(ITA)
Dr
Wayne de Paula
(ITA)
