WW Production Cross Section and W Branching Fractions in e+e- Collisions at 189 GeV
| 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 | From a data sample of 183 pb^-1 recorded at a center-of-mass energy of roots = 189 GeV with the OPAL detector at LEP, 3068 W-pair candidate events are selected. Assuming Standard Model W boson decay branching fractions, the W-pair production cross section is measured to be sigmaWW = 16.30 +- 0.34(stat.) +- 0.18(syst.) pb. When combined with previous OPAL measurements, the W boson branching fraction to hadrons is determined to be 68.32 +- 0.61(stat.) +- 0.28(syst.) % assuming lepton universality. These results are consistent with Standard Model expectations. | |
| dc.description | 22 pages, 5 figures, submitted to Phys. Lett. B | |
| dc.identifier | https://arxiv.org/abs/hep-ex/0009019 | |
| dc.identifier | http://arxiv.org/abs/hep-ex/0009019 | |
| dc.identifier | Phys.Lett.B493:249-265,2000 | |
| dc.identifier | doi:10.1016/S0370-2693(00)01085-6 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/207126 | |
| dc.subject | High Energy Physics - Experiment | |
| dc.title | WW Production Cross Section and W Branching Fractions in e+e- Collisions at 189 GeV | |
| dc.type | text |