Measurement of the B^0_s lifetime in the exclusive decay channel B^0_s -> J/psi phi
| dc.creator | D0 Collaboration | |
| dc.creator | Abazov, V. M. | |
| dc.date | 2004-09-20 | |
| dc.date | 2004-12-10 | |
| dc.date.accessioned | 2026-07-07T11:57:56Z | |
| dc.date.available | 2026-07-07T11:57:56Z | |
| dc.description | Using the exclusive decay B^0_s -> J/psi (mu+mu-) phi(K+K-), we report the most precise single measurement of the B^0_s lifetime. The data sample corresponds to an integrated luminosity of approximately 220 pb-1 collected with the DO detector at the Fermilab Tevatron Collider in 2002-2004. We reconstruct 337 signal candidates, from which we extract the B^0_s lifetime, τ(B^0_s) = 1.444 +0.098/-0.090 stat +/- 0.020 sys ps. We also report a measurement for the lifetime of the B^0 meson using the exclusive decay B^0 -> J/psi (mu+mu-)K*0(892)(K+pi-). We reconstruct 1370 signal candidates, obtaining τ(B^0) = 1.473 +0.052/-0.050 stat +/- 0.023 sys ps, and the ratio of lifetimes, τ(B^0_s)/τ(B^0) = 0.980 +0.076/-0.071 stat +/- 0.003 sys. | |
| dc.description | 7 pages, 4 Figures, Submitted to Physical Review Letters. Minor changes after PRL referees coments | |
| dc.identifier | https://arxiv.org/abs/hep-ex/0409043 | |
| dc.identifier | http://arxiv.org/abs/hep-ex/0409043 | |
| dc.identifier | Phys.Rev.Lett.94:042001,2005 | |
| dc.identifier | doi:10.1103/PhysRevLett.94.042001 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/206055 | |
| dc.subject | High Energy Physics - Experiment | |
| dc.title | Measurement of the B^0_s lifetime in the exclusive decay channel B^0_s -> J/psi phi | |
| dc.type | text |