Study of the decaysD→K3π

Abstract
We report measurements of the decays D0Kπ+π+π, D+K¯0π+π+π, D+Kπ+π+π0, and D0K¯0π+π+π0 from Fermilab photoproduction experiment E691. A complete resonant substructure analysis is used to determine the relative fractions and phases of amplitudes contributing to the decays D0Kπ+π+π, D+K¯0π+π+π, and D+Kπ+π+π0.