Published November 1992
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A preliminary measurement of Rb = Γ(Ζ degrees → b bar b)/Γ(Ζ degrees → hadrons) at SLD
Creators
- 1. Rutherford Appleton Lab., Chilton (United Kingdom)
Description
We present a preliminary measurement of Rb, the ratio of Γ(Z degree - b bar b) relative to Γ(Z degree → hadrons) using the silicon CCD-pixel vertex detector of the SLD at the SLAC Linear Collider (SLC). An impact parameter method and a displaced vertex method are applied to all charged tracks, to efficiently tag Z degree - b bar b events. From the impact (displaced vertex) approach we find Rb = 0.214 ± 0.010 ± 0.025 (Rb = 0.204 ± 0.010 ± 0.030), consistent with the standard model value
Availability note (English)
MF available from INIS under the Report Number; Also available from OSTI as DE93015248; NTIS; US Govt. Printing Office Dep.Files
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Additional details
Publishing Information
- Imprint Pagination
- 8 p.
- Report number
- SLAC-PUB--5972
Conference
- Title
- Meeting of the Division of Particles and Fields of the American Physical Society.
- Dates
- 10-14 Nov 1992.
- Place
- Batavia, IL (United States).
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 25012471
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- BEAM POSITION; BRANCHING RATIO; ERRORS; HADRONIC PARTICLE DECAY; MONTE CARLO METHOD; PERFORMANCE; STANFORD LINEAR COLLIDER; STANFORD LINEAR COLLIDER DETECTOR; Z NEUTRAL BOSONS
- Descriptors DEC
- ACCELERATORS; BOSONS; CALCULATION METHODS; DECAY; ELEMENTARY PARTICLES; INTERMEDIATE BOSONS; INTERMEDIATE VECTOR BOSONS; LINEAR ACCELERATORS; LINEAR COLLIDERS; MEASURING INSTRUMENTS; PARTICLE DECAY; RADIATION DETECTORS
Optional Information
- Contract/Grant/Project number
- Contract AC03-76SF00515
- Collaborations
- The SLD Collaboration.
- Funding organization
- USDOE, Washington, DC (United States).
- Secondary number(s)
- CONF-921122--64.