Speakers
Sebastian Ordonez
(National University of Colombia)Prof.
Diego Milanés
(Universidad Nacional de Colombia)
Description
In this work we study the $K$-matrix formalism and show how this can be applied to Dalitz plot analyses of charm-meson decays, such as $D^{0}\longrightarrow K_{s}^{0}\pi^{+}\pi^{-}$. The $K$-matrix, in contrast to the typical Isobar Model (IM), allows to properly include in the decay amplitude broad-overlapping resonances and non-resonant background, which are features of some of the known experimental results in light-meson spectroscopy. The $\pi\pi$ S-wave scattering presented in this work is a good example of this underlying dynamics. Moreover, the $K$-matrix formalism imposes by construction a unitarity constraint, which is not ensured by other approaches as IM.
Primary author
Sebastian Ordonez
(National University of Colombia)
Co-author
Prof.
Diego Milanés
(Universidad Nacional de Colombia)
