Measurements of Rb with impact parameters and displaced vertices

K. Abe et al.
Phys. Rev. D 53, 1023 – Published 1 February 1996
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Abstract

We present measurements of Rb using the SLD at the SLC. The analyses use 2D and 3D impact parameter tags and a displaced 3D vertex tag which all exploit the small size and stability of the e+e interaction point and the precision 3D CCD pixel vertex detector to achieve high bb¯-tagging efficiencies and purities. The combined measurement yields Rb=0.229±0.011 and is consistent with standard model predictions. © 1996 The American Physical Society.

  • Received 11 May 1995

DOI:https://doi.org/10.1103/PhysRevD.53.1023

©1996 American Physical Society

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Vol. 53, Iss. 3 — 1 February 1996

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