A Measurement of the B_s^0 Lifetime using Reconstructed D_s^- Mesons
| dc.creator | The OPAL Collaboration | |
| dc.creator | al, K. Ackerstaff et | |
| dc.date | 1997-08-16 | |
| dc.date.accessioned | 2026-07-07T11:46:48Z | |
| dc.date.available | 2026-07-07T11:46:48Z | |
| dc.description | We report a measurement of the B^0_s meson lifetime from B_s^0 -> D^-_s X decays, where D_s^- mesons are reconstructed in the D_s^- -> phi pi^- and D_s^- -> K^{*0} K^- decay channels. From approximately 3.7 million hadronic Z^0 decays recorded by the OPAL detector at LEP a sample is selected containing 911 +/- 83 candidates, of which 519 +/- 136 are estimated to be from B_s^0 meson decays. Fitting the distribution of the distance from the beam spot to the decay vertex of the D_s^- candidates with an unbinned likelihood function we measure tau(B_s^0) = 1.72 + 0.20 - 0.19 + 0.18 - 0.17 ps, where the errors are statistical and systematic, respectively. | |
| dc.description | 17 pages, LaTeX, uses a4p.sty, 3 eps figures included, submitted to Zeit. Phys. C | |
| dc.identifier | https://arxiv.org/abs/hep-ex/9708023 | |
| dc.identifier | http://arxiv.org/abs/hep-ex/9708023 | |
| dc.identifier | Eur.Phys.J.C2:407-416,1998 | |
| dc.identifier | doi:10.1007/s100520050150 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/202355 | |
| dc.subject | High Energy Physics - Experiment | |
| dc.title | A Measurement of the B_s^0 Lifetime using Reconstructed D_s^- Mesons | |
| dc.type | text |