Improved Measurement of the Left-Right Z0 Cross Section Asymmetry
Physical Review Letters Volume 78 Issue 11
Page 2075-2079
published_at 1997-05-17
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| File | |
| Title ( eng ) |
Improved Measurement of the Left-Right Z0 Cross Section Asymmetry
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| Creator |
SLD Collaboration
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| Source Title |
Physical Review Letters
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| Volume | 78 |
| Issue | 11 |
| Start Page | 2075 |
| End Page | 2079 |
| Abstract |
We present a new 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 91.28 GeV with the SLD detector at the SLAC Linear Collider (SLC). The luminosity-weighted average polarization of the SLC electron beam was (77.23±0.52)%. Using a sample of 93 644 Z decays, we measure the pole value of the asymmetry, ALR0, to be 0.1512±0.0042(stat)±0.0011(syst), which is equivalent to an effective weak mixing angle of sin 2 θWeff = 0.231 00±0.000 54(stat)±0.000 14(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 | 1997-05-17 |
| Rights |
Copyright (c) 1997 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.78.2075
[NCID] AA00773679
[DOI] http://dx.doi.org/10.1103/PhysRevLett.78.2075
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