2001/12/31 by B. Aubert, D. Boutigny, J.-M. Gaillard +97 · 1 citation
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ex
paper · pdf · doi:10.1103/physrevlett.88.221802
published as Phys.Rev.Lett.88:221802,2002 · 7 pages, 2 figures, submitted to Physical Review Letters
arxiv created 2001/12/31 · openalex publication_date 2002/05/20 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/04
Flavor oscillations of neutral B mesons have been studied in e+e^\ensuremath- annihilation data collected with the BABAR detector at center-of-mass energies near the \ensuremathΥ(4S) resonance. The data sample used for this purpose consists of events in which one B0 meson is reconstructed in a hadronic decay mode, while the flavor of the recoiling B0 is determined with a tagging algorithm that exploits the correlation between the flavor of the heavy quark and the charges of its decay products. From the time development of the observed mixed and unmixed final states, we determine the B0\ensuremath-B0 oscillation frequency \ensuremathΔmd to be 0.516\ifmmode±\else\textpm\fi0.016(stat)\ifmmode±\else\textpm\fi0.010(syst)\phantom\rule0ex0exps^\ensuremath-1.