Measurement of the B0 lifetime and oscillation frequency using B̄0 → D*+l-ν̄ decays

G. Abbiendi, K. Ackerstaff, C. Ainsley, P. F. Åkesson, G. Alexander, J. Allison, K. J. Anderson, S. Arcelli, S. Asai, S. F. Ashby, D. Axen, G. Azuelos, I. Bailey, A. H. Ball, E. Barberio, R. J. Barlow, S. Baumann, T. Behnke, K. W. Bell, G. BellaA. Bellerive, G. Benelli, S. Bentvelsen, S. Bethke, O. Biebel, I. J. Bloodworth, O. Boeriu, P. Bock, J. Böhme, D. Bonacorsi, M. Boutemeur, S. Braibant, P. Bright-Thomas, L. Brigliadori, R. M. Brown, H. J. Burckhart, J. Cammin, P. Capiluppi, R. K. Carnegie, A. A. Carter, J. R. Carter, C. Y. Chang, D. G. Charlton, P. E.L. Clarke, E. Clay, I. Cohen, O. C. Cooke, J. Couchman, C. Couyoumtzelis, R. L. Coxe, A. Csilling, M. Cuffiani, S. Dado, G. M. Dallavalle, S. Dallison, A. De Roeck, E. De Wolf, P. Dervan, K. Desch, B. Dienes, M. S. Dixit, M. Donkers, J. Dubbert, E. Duchovni, G. Duckeck, I. P. Duerdoth, P. G. Estabrooks, E. Etzion, F. Fabbri, M. Fanti, L. Feld, P. Ferrari, F. Fiedler, I. Fleck, M. Ford, A. Frey, A. Fürtjes, D. I. Futyan, P. Gagnon, J. W. Gary, G. Gaycken, C. Geich-Gimbel, G. Giacomelli, P. Giacomelli, D. Glenzinski, J. Goldberg, C. Grandi, K. Graham, E. Gross

Research output: Contribution to journalArticle

Abstract

The lifetime and oscillation frequency of the B0 meson has been measured using B̄0 → D*+l-ν̄ decays recorded on the Z0 peak with the OPAL detector at LEP. The D*+ → D0π+ decays were reconstructed using an inclusive technique and the production flavour of the B0 mesons was determined using a combination of tags from the rest of the event. The results τ(B0) = 1.541 ± 0.028 ± 0.023 ps, Δm(d) = 0.497 ± 0.024 ± 0.025 ps-1 were obtained, where in each case the first error is statistical and the second is systematic. (C) 2000 Elsevier Science B.V.

Original languageEnglish (US)
Pages (from-to)266-280
Number of pages15
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume493
Issue number3-4
DOIs
StatePublished - Nov 16 2000

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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    Abbiendi, G., Ackerstaff, K., Ainsley, C., Åkesson, P. F., Alexander, G., Allison, J., Anderson, K. J., Arcelli, S., Asai, S., Ashby, S. F., Axen, D., Azuelos, G., Bailey, I., Ball, A. H., Barberio, E., Barlow, R. J., Baumann, S., Behnke, T., Bell, K. W., ... Gross, E. (2000). Measurement of the B0 lifetime and oscillation frequency using B̄0 → D*+l-ν̄ decays. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 493(3-4), 266-280. https://doi.org/10.1016/S0370-2693(00)01145-X