| Published Articles | |
| Title | Precision measurement of the oscillation frequency in the $B_{s}^{0}-\bar{B}_{s}^{0}$ system |
| Author(s) | Wandernoth, Sebastian (Heidelberg U.) |
| Publication | 2013 |
| Number of pages | 4 |
| In: | 48th Rencontres de Moriond on Electroweak Interactions and Unified Theories, La Thuile, Italy, 2 - 9 Mar 2013, pp.513-516 |
| Subject category | Particle Physics - Experiment |
| Accelerator/Facility, Experiment | CERN LHC ; LHCb |
| Abstract | A measurement of the B 0 s { B 0 s oscillation frequency, which is equivalent to the mass difference m s of the B 0 s mass eigenstates, is presented. Using a dataset, corresponding to an integrated luminosity of 1.0 fb 1 , collected by the LHCb experiment at the LHC in 2011, a total of about 34,000 B 0 s ! D s + signal candidates are reconstructed. The average decay time resolution is 44 fs and the effective tagging efficiency in this channel is " e = 3 : 5%. The oscillation frequency is measured to be m s = 17.768 0.023 (stat) 0.006 (syst) ps 1 , which is the most precise measurement to date |
Corresponding record in: Inspire
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