Abazov, V. M. and Bertram, Iain and Borissov, Guennadi and Fox, Harald and Ratoff, Peter and Sopczak, Andre (2007) Measurement of the Λ<sub>b</sub> lifetime in the exclusive decay Λ<sub>b</sub> → J/ψ Λ. Physical Review Letters, 99. p. 142001. ISSN 1079-7114
Full text not available from this repository.Official URL: http://dx.doi.org/10.1103/PhysRevLett.99.142001
Abstract
We have measured the b lifetime using the exclusive decay bJ/, based on 1.2 fb-1 of data collected with the D0 detector during 2002–2006. From 171 reconstructed b decays, where the J/ and are identified via the decays J/µ+µ- and p, we measured the b lifetime to be (b)=1.218(stat)±0.042(syst) ps. We also measured the B0 lifetime in the decay B0J/(µ+µ-)K(+-) to be (B0)=1.501(stat)±0.050(syst) ps, yielding a lifetime ratio of (b)/(B0)=0.811(stat)±0.034(syst).
| Item Type: | Article |
|---|---|
| Journal or Publication Title: | Physical Review Letters |
| Subjects: | Q Science > QC Physics |
| Departments: | Faculty of Science and Technology > Physics |
| ID Code: | 11246 |
| Deposited By: | Dr Iain Bertram |
| Deposited On: | 12 Aug 2008 16:21 |
| Refereed?: | Yes |
| Published?: | Published |
| Last Modified: | 26 Jul 2012 14:58 |
| Identification Number: | |
| URI: | http://eprints.lancs.ac.uk/id/eprint/11246 |
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