Résumé
Using the ARGUS detector at the e+e- storage ring DORIS II at DESY, we have measured the inclusive production of D0, D+ and D*(2010)+ mesons in B decays and in nonresonant e+e- annihilation around 10.6 GeV. The inclusive branching ratios for B decays to D0, D+ and D*+ mesons are found to be (52.2±8.2±3.5)%, (27.2±6.3±3.5)% and (34.8±6.0±3.5)% respectively. Thus, D0 and D+ production account for about 70% of the charm produced in B decays, neglecting b→u contributions to the total width. The production cross sections and momentum spectra for continuum e+e- annihilation are also presented.
| langue originale | Anglais |
|---|---|
| Pages (de - à) | 353-360 |
| Nombre de pages | 8 |
| journal | Zeitschrift fur Physik C-Particles and Fields |
| Volume | 52 |
| Numéro de publication | 3 |
| Les DOIs | |
| état | Publié - 1 janv. 1991 |
| Modification externe | Oui |
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