Study of the D(1285) and E(1420) resonances produced in pp annihilations at 700–760 MeV/c

In this paper we have investigated the properties of the D(1285) and E(1420) meson resonances using the five-body annihilation channels $\text{p}\text{p}\text{→}\text{K}\text{K}\text{πππ}$ obtained in a large statistics experiment (28 events/μb). The analysis favours the 1⁺ spin-parity assignment for the D(1285) meson. The dominant decay mode of the D(1285) into $\text{K}\text{K}\text{π}$ is found to be δ(970)π. The situation concerning the E(1420) meson remains confused although not inconsistent with previous analyses. Partial cross sections on resonance production are also presented.