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Measurement of the B-0-(B)over-bar(0) oscillation frequency with inclusive dilepton events

Aubert, B; Boutigny, D; Gaillard, JM; Hicheur, A; Karyotakis, Y; Lees, JP; Robbe, P; ... BABAR Collaboration, .; + view all (2002) Measurement of the B-0-(B)over-bar(0) oscillation frequency with inclusive dilepton events. PHYS REV LETT , 88 (22) , Article 221803. 10.1103/PhysRevLett.88.221803. Green open access

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Abstract

The B-0-(B) over bar (0) oscillation frequency has been measured with a sample of 23x10(6) B (B) over bar 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 Deltam(d)=0.493+/-0.012(stat )+/-0.009(syst) ps(-1) .

Type: Article
Title: Measurement of the B-0-(B)over-bar(0) oscillation frequency with inclusive dilepton events
Open access status: An open access version is available from UCL Discovery
DOI: 10.1103/PhysRevLett.88.221803
Publisher version: http://dx.doi.org/10.1103/PhysRevLett.88.221803
Language: English
Keywords: MESON DECAYS
UCL classification: UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > UCL Queen Square Institute of Neurology
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > UCL Queen Square Institute of Neurology > Brain Repair and Rehabilitation
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
URI: https://discovery.ucl.ac.uk/id/eprint/1303610
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