A Measurement of the Rate of Charm Production in W Decays
| dc.creator | The OPAL collaboration | |
| dc.creator | Abbiendi, G. | |
| dc.date | 2000-09-07 | |
| dc.date.accessioned | 2026-07-07T12:01:32Z | |
| dc.date.available | 2026-07-07T12:01:32Z | |
| dc.description | Using data recorded at centre-of-mass energies around 183 GeV and 189 GeV with the OPAL detector at LEP, the fundamental coupling of the charm quark to the W boson has been studied. The ratio Rc^W = Gamma(W -> cX)/Gamma(W -> hadrons) has been measured from jet properties, lifetime information, and leptons produced in charm decays. A value compatible with the Standard Model expectation of 0.5 is obtained: Rc^W = 0.481 +- 0.042(stat.) +- 0.032(syst.). By combining this result with measurements of the W boson total width and hadronic branching ratio, the magnitude of the CKM matrix element Vcs is determined to be |Vcs| = 0.969 +- 0.058. | |
| dc.description | 18 pages, 4 figures, submitted to Phys. Lett. B | |
| dc.identifier | https://arxiv.org/abs/hep-ex/0009020 | |
| dc.identifier | http://arxiv.org/abs/hep-ex/0009020 | |
| dc.identifier | Phys.Lett.B490:71-86,2000 | |
| dc.identifier | doi:10.1016/S0370-2693(00)00971-0 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/207127 | |
| dc.subject | High Energy Physics - Experiment | |
| dc.title | A Measurement of the Rate of Charm Production in W Decays | |
| dc.type | text |