Measurements of {ital R}{sub {ital b}} with impact parameters and displaced vertices
Journal Article
·
· Physical Review, D
OSTI ID:278540
We present measurements of {ital R}{sub {ital b}} 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 {ital e}{sup +}{ital e}{sup {minus}} interaction point and the precision 3D CCD pixel vertex detector to achieve high {ital b{bar b}}-tagging efficiencies and purities. The combined measurement yields {ital R}{sub {ital b}}=0.229{plus_minus}0.011 and is consistent with standard model predictions. {copyright} {ital 1996 The American Physical Society.}
- Research Organization:
- Boston University
- DOE Contract Number:
- FG02-91ER40676; FG03-92ER40701; FG03-91ER40618; FG03-92ER40689
- OSTI ID:
- 278540
- Journal Information:
- Physical Review, D, Journal Name: Physical Review, D Journal Issue: 3 Vol. 53; ISSN PRVDAQ; ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
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