Final Results on Electroweak Asymmetries from SLD
- SLAC
I present the final measurements of the Z boson-lepton coupling asymmetry parameters A{sub e}, A{sub {mu}}, and A{sub {tau}}, obtained from the complete sample of polarized Z bosons collected by the SLD detector at the SLAC Linear Collider. The measurements use leptonic Z decays and the results are A{sub e} = 0.1544 {+-} 0.0060, A{sub {mu}} = 0.142 {+-} 0.015, and A{sub {tau}} = 0.136 {+-} 0.015. The A{sub e} result is combined with the left-right asymmetry using Z decays to hadrons, A{sub LR}{sup 0} (''' A{sub e}), and is found to be A{sub e} = 0.1516 {+-} 0.0021. Assuming lepton universality, a combined effective weak mixing angle of sin{sup 2} {theta}{sub W}{sup eff} = 0.23098 {+-} 0.00026 is obtained. Using additional Standard-Model parameters an upper limit on the Higgs mass is given.
- Research Organization:
- Stanford Linear Accelerator Center, Menlo Park, CA (US)
- Sponsoring Organization:
- USDOE Office of Energy Research (ER) (US)
- DOE Contract Number:
- AC03-76SF00515
- OSTI ID:
- 784757
- Report Number(s):
- SLAC-PUB-8689
- Country of Publication:
- United States
- Language:
- English
Similar Records
The Final SLD Results for A{sub LR} and A{sub lepton}
An Improved Direct Measurement of Leptonic Coupling Asymmetries with Polarized Z bosons
Measurements of AP{sub LR}, A{sub lepton} and A{sub b} from SLD
Technical Report
·
Thu Oct 12 00:00:00 EDT 2000
·
OSTI ID:784728
An Improved Direct Measurement of Leptonic Coupling Asymmetries with Polarized Z bosons
Technical Report
·
Mon Oct 09 00:00:00 EDT 2000
·
OSTI ID:784721
Measurements of AP{sub LR}, A{sub lepton} and A{sub b} from SLD
Technical Report
·
Thu Mar 18 23:00:00 EST 1999
·
OSTI ID:10025