K−p→π0π0Σ0atpK−=514–750MeV∕cand comparison with otherπ0π0production (original) (raw)

Reaction K − p → 0 0 ⌺ 0 was measured with the Crystal Ball multiphoton spectrometer at eight K − momenta from 514 to 750 MeV/ c. Dynamics and the energy dependence of the reaction are shown by Dalitz plots, invariant mass spectra, production angular distributions, and total cross sections. The dipion invariant-mass spectra for K − p → 0 0 ⌺ 0 show an enhancement in the low mass region; the opposite is the case for the K − p → 0 0 ⌳ and − p → 0 0 n reactions. There is no direct evidence for a f 0 ͑600͒-meson contribution to 0 0 production. Everywhere t ͑K − p → 0 0 ⌺ 0 ͒ Ӷ t ͑K − p → 0 0 ⌳͒.