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Measurement of the B0-B-0 oscillation frequency with inclusive dilepton events |
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| Authors: | Aubert B Boutigny D Gaillard J-M Hicheur A Karyotakis Y Lees J P Robbe P Tisserand V Palano A Pompili A Chen G P Chen J C Qi N D Rong G Wang P Zhu Y S Eigen G Stugu B Abrams G S Borgland A W Breon A B Brown D N Button-Shafer J Cahn R N Clark A R Gill M S Gritsan A V Groysman Y Jacobsen R G Kadel R W Kadyk J Kerth L T Kolomensky Yu G Kral J F LeClerc C Levi M E Lynch G Oddone P J Pripstein M Roe N A Romosan A Ronan M T Shelkov V G Telnov A V Wenzel W A Bright-Thomas P G Harrison T J Hawkes C M Knowles D J O'Neale S W Penny R C Watson A T Watson N K Deppermann T Goetzen K Koch H Kunze M |
| Institution: | Laboratoire de Physique des Particules, F-74941 Annecy-le-Vieux, France. |
| Abstract: | The B0-B-0 oscillation frequency has been measured with a sample of 23 x 10(6) BB- pairs collected with the BABAR detector at the PEP-II asymmetric B Factory at SLAC. In this sample, we select events in which both B mesons decay semileptonically and use the charge of the leptons to identify the flavor of each B meson. A simultaneous fit to the decay time difference distributions for opposite- and same-sign dilepton events gives deltamd = 0.493+/-0.012(stat)+/-0.009(syst) ps-1. |
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