A Precise Measurement of the B+, B0 and Mean b-hadron Lifetime with the DELPHI Detector at LEP I
| dc.creator | The DELPHI Collaboration | |
| dc.creator | Abdallah, J. | |
| dc.date | 2004-01-16 | |
| dc.date.accessioned | 2026-07-07T11:57:47Z | |
| dc.date.available | 2026-07-07T11:57:47Z | |
| dc.description | Final results from the DELPHI Collaboration on the lifetime of B+ and B0 mesons and the mean b-hadron lifetime, are presented using the data collected at the Z0 peak in 1994 and 1995. Elaborate, inclusive, secondary vertexing methods have been employed to ensure a b-hadron reconstruction with good efficiency. To separate samples of B+ and B0 mesons, high performance neural network techniques are used that achieve very high purity signals. The results obtained are: tau_B+ = 1.624 +/- 0.014 (stat) +/- 0.018 (syst) ps tau_B0 = 1.531 +/- 0.021 (stat) +/- 0.031 (syst) ps tau_B+/tau_B0 = 1.060 +/- 0.021 (stat) +/- 0.024 (syst) and for the average b-hadron lifetime: tau_b = 1.570 +/- 0.005 (stat) +/- 0.008 (syst) ps. | |
| dc.description | 30 pages, 10 figures, Accepted by Eur. Phys. J. C | |
| dc.identifier | https://arxiv.org/abs/hep-ex/0401025 | |
| dc.identifier | http://arxiv.org/abs/hep-ex/0401025 | |
| dc.identifier | Eur.Phys.J.C33:307-324,2004 | |
| dc.identifier | doi:10.1140/epjc/s2004-01599-5 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/206006 | |
| dc.subject | High Energy Physics - Experiment | |
| dc.title | A Precise Measurement of the B+, B0 and Mean b-hadron Lifetime with the DELPHI Detector at LEP I | |
| dc.type | text |