@article{0c344e539b254a96888e88c0b075803c,
title = "Measurement of the time dependence of Bd0 ↔ Bd0 mixing using leptons and D*± mesons",
abstract = "Data collected with the OPAL detector at LEP during 1990-1993 are used to measure the time dependence of Bd 0 ↔ Bd 0 mixing. From a sample of 153 ± 12 events with a charged D* and a lepton in the opposite hemisphere, we measure the Bd 0↔Bd 0 oscillation frequency to be Δmd = 0.57±0.11(stat.)±0.02(syst.) ps-1. This corresponds to an oscillation parameter of xd = ΔmdτBd 0 = 0.82±0.16(stat.) ± 0.03(syst.) ± 0.09(syst. τB0 d ), where the second systematic uncertainty is due to the error in the measured Bd 0 lifetime.",
author = "{OPAL Collaboration} and R. Akers and G. Alexander and J. Allison and Anderson, {K. J.} and S. Arcelli and S. Asai and A. Astbury and D. Axen and G. Azuelos and Ball, {A. H.} and Barlow, {R. J.} and R. Bartoldus and Batley, {J. R.} and G. Beaudoin and A. Beck and Beck, {G. A.} and J. Becker and C. Beeston and T. Behnke and Bell, {K. W.} and G. Bella and R. Bentkowski and P. Berlich and S. Bethke and O. Biebel and Bloodworth, {I. J.} and P. Bock and Bosch, {H. M.} and M. Boutemeur and R. Bright-Thomas and Brown, {R. M.} and A. Buijs and Burckhart, {H. J.} and C. Burgard and P. Capiluppi and Carnegie, {R. K.} and Carter, {A. A.} and Carter, {J. R.} and Chang, {C. Y.} and C. Charlesworth and Charlton, {D. G.} and Chu, {S. L.} and Clarke, {E. E.L.} and Clayton, {J. C.} and Clowes, {S. G.} and I. Cohen and Conboy, {J. E.} and M. Coupland and M. Cuffiani and E. Etzion",
note = "Funding Information: It is a pleasure to thank the SL Division for the efficient operation of the LEP accelerator, the precise information on the absolute energy, and their continuing close cooperation with our experimental group. In addition to the support staff at our own institutions we are pleased to acknowledge the Department of Energy, USA, National Science Foundation, USA, Texas National Research Laboratory Commission, USA, Science and Engineering Research Council, UK, Natural Sciences and Engineering Research Council, Canada, Fussefeld Foundation, Israeli Ministry of Energy and Ministry of Science, Minerva Gesellschaft, Japanese Ministry of Education, Science and Culture (the Monbusho) and a grant under the Monbusho International Science Research Program, German Israeli Bi-national Science Foundation (GIF), Direction des Sciences de la Mati~re du Commissariat l'Energie Atomique, France, Bundesministerium fiir Forschung und Technologie, Germany, National Research Council of Canada, A.P. Sloan Foundation and Junta Nacional de Investigaq~o Cient~fica e Tecnol6gica, Portugal.",
year = "1994",
month = sep,
day = "29",
doi = "10.1016/0370-2693(94)90577-0",
language = "אנגלית",
volume = "336",
pages = "585--598",
journal = "Physics Letters B",
issn = "0370-2693",
publisher = "Elsevier B.V.",
number = "3-4",
}