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A High-Precision Measurement of the Left-Right Z Boson Cross-Section Asymmetry

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arxiv hep-ex/0004026 v1 pith:3D4HHGI2 submitted 2000-04-25 hep-ex

SLD Collaboration This is my paper · ORCID
classification hep-ex
keywords asymmetrymeasurementbosoncross-sectiondecaysduringleft-rightsin2th
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We present a measurement of the left-right cross-section asymmetry (ALR) for Z boson production by e+e- collisions. The measurement includes the final data taken with the SLD detector at the SLAC Linear Collider (SLC) during the period 1996-1998. Using a sample of 383,487 Z decays collected during the 1996-1998 runs we measure the pole-value of the asymmetry, ALR0, to be 0.15056+-0.00239 which is equivalent to an effective weak mixing angle of sin2th(eff) = 0.23107+-0.00030. Our result for the complete 1992-1998 dataset comprising 537 thousand Z decays is sin2th(eff) = 0.23097+-0.00027.

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Cited by 2 Pith papers

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