First Measurement of the Left-Right Cross Section Asymmetry in Z Boson Production by e+e- Collisions
Physical Review Letters Volume 70 Issue 17
Page 2515-2520
published_at 1993-04-26
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| File | |
| Title ( eng ) |
First 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 | 70 |
| Issue | 17 |
| Start Page | 2515 |
| End Page | 2520 |
| Abstract |
We present the first 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 91.55 GeV with the SLD detector at the SLAC Linear Collider which utilized a longitudinally polarized electron beam. The average beam polarization was (22.4±0.6)%. Using a sample of 10 224 Z decays, we measure ALR to be 0.100±0.044(stat)±0.004(syst), which determines the effective weak mixing angle to be sin2θWeff=0.2378 ±0.0056(stat)±0.0005(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 | 1993-04-26 |
| Rights |
Copyright (c) 1993 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.70.2515
[NCID] AA00773679
[DOI] http://dx.doi.org/10.1103/PhysRevLett.70.2515
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