摘要: We analyze the consequences of the usual assumption of a constant function to fit non-resonant decays from experimental Dalitz plot describing charmed meson decays. We first show, using the D(sup +) -> K(sup 0) (pi)(sup +) (pi)... 展开 We analyze the consequences of the usual assumption of a constant function to fit non-resonant decays from experimental Dalitz plot describing charmed meson decays. We first show, using the D(sup +) -> K(sup 0) (pi)(sup +) (pi) (sup 0) decay channel as an example, how an inadequate extraction of the non- resonant contribution could yield incorrect measurements for the resonant channels. We analyze how the correct study of this decay will provide a test for the validity of factorization in D meson decays. Finally, we show how form factors that can be measured from the D(sup +)(sub s) -> (pi)(sup -) (pi)(sup +) (pi)(sup +) decay. We emphasize its relevance for the study of the decay (tau) -> v(sub t) 3(pi) and the extraction of the (alpha)(sub 1) meson width. (author) 26 refs., 6 figs. 收起