Search for B0s-B0s oscillations using the semileptonic decay B0s → φℓ + Xν
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A search for B0s-B0s oscillations is performed in a sample of B0s semileptonic decays collected using dilepton triggers at the Tevatron Collider during 1992–1995. The B0s is reconstructed using phiv meson-lepton correlations; its initial production flavor is determined with the second lepton in the event. From a signal of 1068 with a B0s purity of 61%, we obtain a limit on the B0s - B0s oscillation frequency of Δms > 5.8ps-1 at 95% confidence level. © 1999 The American Physical Society.
author list (cited authors)
Akimoto, H., Akopian, A., Albrow, M. G., Amadon, A., Amendolia, S. R., Amidei, D., ... Demina, R.