Nonleptonic charmed meson decays: Quark diagrams and final-state interactions
High Energy Physics - Phenomenology
2007-05-23 v1
Abstract
Effects of final-state interactions in nonleptonic decays of charmed mesons are studied in the framework of quark-diagram approach. For the case of u-d-s flavour symmetry we discuss how the inelastic coupled-channel rescattering effects (and, in particular, resonance formation in the final state) modify the input quark-diagram weak amplitudes. It is shown that such inelastic effects lead to the appearance of nonzero relative phases between various quark diagrams, thus invalidating some of the conclusions drawn in the past within the diagrammatical approach. The case of SU(3) symmetry-breaking in Cabibbo once-forbidden decays is also studied in some detail.
Keywords
Cite
@article{arxiv.hep-ph/9601265,
title = {Nonleptonic charmed meson decays: Quark diagrams and final-state interactions},
author = {Piotr Zenczykowski},
journal= {arXiv preprint arXiv:hep-ph/9601265},
year = {2007}
}
Comments
29 pages, LaTeX