Dispersion-theoretical analysis of the D^+ --> K^- pi^+ pi^+ Dalitz plot

Franz Niecknig, Bastian Kubis

We study the Dalitz plot of the Cabibbo-favored charmed-meson decay $D^{+}\to K^{-}{\pi }^{+}{\pi }^{+}$ using dispersion theory. The formalism respects all constraints from analyticity and unitarit…