Investigation of CP violation in B^0 -> J/psi K^0_S decays at LEP
| dc.creator | The OPAL Collaboration | |
| dc.creator | al, K. Ackerstaff et | |
| dc.date | 1998-01-23 | |
| dc.date.accessioned | 2026-07-07T12:02:18Z | |
| dc.date.available | 2026-07-07T12:02:18Z | |
| dc.description | An investigation of CP violation was performed using a total of 24 candidates for B^0 -> J/psi K^0_S decay, with a purity of about 60%. These events were selected from 4.4 million hadronic Z^0 decays recorded by the OPAL detector at LEP. An analysis procedure, involving techniques to reconstruct the proper decay times and tag the produced b-flavours, B^0 or B^0(bar), has been developed to allow a first direct study of the time dependent CP asymmetry that, in the Standard Model, is sin(2beta). The result is sin(2beta) = 3.2_{-2.0}^{+1.8} +/- 0.5, where the first error is statistical and the second systematic. This result is used to determine probabilities for different values of sin(2beta) in the physical region from -1 to +1. | |
| dc.description | 21 pages, LaTeX, 4 eps figures included, submitted to Phys. Lett. B | |
| dc.identifier | https://arxiv.org/abs/hep-ex/9801022 | |
| dc.identifier | http://arxiv.org/abs/hep-ex/9801022 | |
| dc.identifier | Eur.Phys.J.C5:379-388,1998 | |
| dc.identifier | doi:10.1007/s100520050284 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/207392 | |
| dc.subject | High Energy Physics - Experiment | |
| dc.title | Investigation of CP violation in B^0 -> J/psi K^0_S decays at LEP | |
| dc.type | text |