Résumé
The production of DS + mesons in B meson decays, and in q {Mathematical expression} continuum events, has been studied with the ARGUS detector at the e+e- storage ring DORIS II. In addition to the measurement of inclusive DS + production in γ(4 S)→B {Mathematical expression} decays, all eight two-body decay modes B→DS (*)D(*) have been measured with branching ratios between 1% and 3%. By comparing our inclusive and exclusive results to predictions of heavy quark effective theory, a value of (267±28) MeV × [2.7%/BR(Ds +→φπ+)]1/2 is obtained for the weak decay constant f DS (*), averaged over DS + and DS *+ mesons.
| langue originale | Anglais |
|---|---|
| Pages (de - à) | 1-11 |
| Nombre de pages | 11 |
| journal | Zeitschrift fur Physik C-Particles and Fields |
| Volume | 54 |
| Numéro de publication | 1 |
| Les DOIs | |
| état | Publié - 1 janv. 1992 |
| Modification externe | Oui |
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