@article{4b7c4d2551464d0aa9239e45ba703ede,
title = "Measurement of Rb using a vertex mass tag",
abstract = "We report a new measurement of Rb = ГZ0→bbГZ0→hadrons using a double tag technique, where the b hemisphere selection is based on the reconstructed mass of the B hadron decay vertex. The measurement was performed using a sample of 130 × 103 hadronic Z0 events, collected with the SLD detector at SLC. The method utilizes the 3D vertexing abilities of the CCD pixel vertex detector and the small stable SLC beams to obtain a high b-tagging efficiency and purity. We obtain Rb = 0.2142 ° 0.0034(stat) ° 0.0015(syst) ± 0.0002(Rc).",
author = "{SLD Collaboration} and K. Abe and K. Abe and T. Akagi and Allen, {N. J.} and Ash, {W. W.} and D. Aston and Baird, {K. G.} and C. Baltay and Band, {H. R.} and Barakat, {M. B.} and G. Baranko and O. Bardon and T. Barklow and Bashindzhagyan, {G. L.} and Bazarko, {A. O.} and R. Ben-David and Benvenuti, {A. C.} and Bilei, {G. M.} and D. Bisello and G. Blaylock and Bogart, {J. R.} and B. Bolen and T. Bolton and Bower, {G. R.} and Brau, {J. E.} and M. Breidenbach and Bugg, {W. M.} and D. Burke and Burnett, {T. H.} and Burrows, {P. N.} and W. Busza and A. Calcaterra and Caldwell, {D. O.} and D. Calloway and B. Camanzi and M. Carpinelli and R. Cassell and R. Castaldi and A. Castro and M. Cavalli-Sforza and A. Chou and E. Church and Cohn, {H. O.} and Coller, {J. A.} and V. Cook and R. Cotton and Cowan, {R. F.} and Coyne, {D. G.} and G. Crawford and A. Lath",
year = "1998",
doi = "10.1103/PhysRevLett.80.660",
language = "English (US)",
volume = "80",
pages = "660--665",
journal = "Physical Review Letters",
issn = "0031-9007",
publisher = "American Physical Society",
number = "4",
}