Measurement of the B0-anti-B0 oscillation frequency in hadronic B0 Decays
Abstract
B0-anti-B0 flavor oscillations have been studied in 20.7 fb-1 of e+e- annihilation data collected in 1999 and 2000 with the BABAR detector at center-of-mass energies near the Upsilon(4S) resonance. The event sample consists of one B0 meson fully reconstructed in a hadronic decay mode, while the flavor of the recoiling B0 in the event is determined with a tagging algorithm that exploits the correlation between the flavor of the heavy quark and the charges of its decay products. By fitting the time development of the observed mixed and unmixed final states, the B0-anti-B0 oscillation frequency, Deltamd, is determined to be 0.519+/- 0.020+/- 0.016 ps-1.
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