A Measurement of the Product Branching Ratio f(b->Lambda_b).BR(Lambda_b->Lambda X) in Z0 Decays
| dc.creator | The OPAL Collaboration | |
| dc.creator | al, G. Abbiendi et | |
| dc.date | 1998-12-15 | |
| dc.date.accessioned | 2026-07-07T12:02:27Z | |
| dc.date.available | 2026-07-07T12:02:27Z | |
| dc.description | The product branching ratio, f(b->Lambda_b).BR(Lambda_b->Lambda X), where Lambda_b denotes any weakly-decaying b-baryon, has been measured using the OPAL detector at LEP. Lambda_b are selected by the presence of energetic Lambda particles in bottom events tagged by the presence of displaced secondary vertices. A fit to the momenta of the Lambda particles separates signal from B meson and fragmentation backgrounds. The measured product branching ratio is f(b->Lambda_b).BR(Lambda_b->Lambda X) = (2.67+-0.38(stat)+0.67-0.60(sys))% Combined with a previous OPAL measurement, one obtains f(b->Lambda_b).BR(Lambda_b->Lambda X) = (3.50+-0.32(stat)+-0.35(sys))%. | |
| dc.description | 16 pages, LaTeX, 3 eps figs included, submitted to the European Physical Journal C | |
| dc.identifier | https://arxiv.org/abs/hep-ex/9812018 | |
| dc.identifier | http://arxiv.org/abs/hep-ex/9812018 | |
| dc.identifier | Eur.Phys.J.C9:1-9,1999 | |
| dc.identifier | doi:10.1007/s100520050508 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/207447 | |
| dc.subject | High Energy Physics - Experiment | |
| dc.title | A Measurement of the Product Branching Ratio f(b->Lambda_b).BR(Lambda_b->Lambda X) in Z0 Decays | |
| dc.type | text |