First Evidence of Lambda Lambda-bar in χ_cJ Decays
| dc.creator | BES Collaboration | |
| dc.creator | Bai, J. Z. | |
| dc.date | 2003-04-07 | |
| dc.date.accessioned | 2026-07-07T10:28:18Z | |
| dc.date.available | 2026-07-07T10:28:18Z | |
| dc.description | The first observation of χ_cJ (J=0,1,2) decays to Lambda Lambda-bar is reported using ψ(2S) data collected with the BESII detector at the BEPC. The branching ratios are determined to be BR(χ_c0 \to Lambda Lambda-bar) = (4.7^{+1.3}_{-1.2} \pm 1.0)\times 10^{-4}, BR(χ_c1 \to Lambda Lambda-bar) = (2.6^{+1.0}_{-0.9} \pm 0.6)\times 10^{-4} and BR(χ_c2 \to Lambda Lambda-bar) = (3.3^{+1.5}_{-1.3} \pm 0.7)\times 10^{-4}. Results are compared with model predictions. | |
| dc.description | 18 pages, 8 figures, submitted to Phys. Rev. D | |
| dc.identifier | https://arxiv.org/abs/hep-ex/0304012 | |
| dc.identifier | http://arxiv.org/abs/hep-ex/0304012 | |
| dc.identifier | Phys.Rev.D67:112001,2003 | |
| dc.identifier | doi:10.1103/PhysRevD.67.112001 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/177401 | |
| dc.subject | High Energy Physics - Experiment | |
| dc.title | First Evidence of Lambda Lambda-bar in χ_cJ Decays | |
| dc.type | text |