Precise Measurement of the Left-Right Cross Section Asymmetry in Z Boson Production by e+e- Collisions
Physical Review Letters Volume 73 Issue 1
Page 25-29
published_at 1994-07-04
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| File | |
| Title ( eng ) |
Precise Measurement of the Left-Right Cross Section Asymmetry in Z Boson Production by e+e- Collisions
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| Creator |
SLD Collaboration
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| Source Title |
Physical Review Letters
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| Volume | 73 |
| Issue | 1 |
| Start Page | 25 |
| End Page | 29 |
| Abstract |
We present a precise measurement of the left-right cross section asymmetry (ALR) for Z boson production by e+e- collisions. The measurement was performed at a center-of-mass energy of 91.26 GeV with the SLD detector at the SLAC Linear Collider (SLC). The luminosity-weighted average polarization of the SLC electron beam was (63.0 ± 1.1)%. Using a sample of 49 392 Z decays, we measure ALR to be 0.1628 ± 0.0071 (stat) ± 0.0028 (syst) which determines the effective weak mixing angle to be sin2θWeff=0.2292±0.0009(stat)±0.0004(syst).
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| Language |
eng
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| Resource Type | journal article |
| Publisher |
American Physical Society
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| Date of Issued | 1994-07-04 |
| Rights |
Copyright (c) 1994 American Physical Society.
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| Publish Type | Version of Record |
| Access Rights | open access |
| Source Identifier |
[ISSN] 0031-9007
[DOI] 10.1103/PhysRevLett.73.25
[NCID] AA00773679
[DOI] http://dx.doi.org/10.1103/PhysRevLett.73.25
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