Nonleptonic Decays of D Mesons under the W-Exchange Dominance Hypothesis

摘要

Two-body decays of D mesons are studied in the scalar meson pole approximation combined with the W-exchange dominance hypothesis. As for three-body decays, contributions of quasi two-body decays are taken account for. The background contributions are estimated by using the soft pion method. Our results of two-body decays are in good agreement with experiments. Those of three-body decays are consistent with the known data, although both of the theory and the experiments have large ambiguities. (Atomindex citation 12:628599)