Résumé
Using the ARGUS detector at the DORIS-II electron-positron storage ring at DESY, we have investigated the exclusive decay D*+ → D0π+, D0 → KS0π+π-. From a partial wave analysis of the KS0π+π- system we find that (71.8± 4.2 ± 3.0)% are D0 → K*-π+ and (22.7 ± 3.2 ± 0.9)% are D0 → K0ρ{variant}0 with a relative phase of (-137 ± 7 ± 3)° between the channels. The remaining fraction can be described by several channels involving excited resonances, but not by a three-body phase space decay, thus giving first evidence for D0 decays into K0*(1430)-π+, K0 f0(1975), K0 f2(1270), and K0 f0(1400).
| langue originale | Anglais |
|---|---|
| Pages (de - à) | 435-443 |
| Nombre de pages | 9 |
| journal | Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics |
| Volume | 308 |
| Numéro de publication | 3-4 |
| Les DOIs | |
| état | Publié - 1 juil. 1993 |
| Modification externe | Oui |
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