[SLAC] [SLAC Pubs and Reports] SLAC-PUB-6456Precise Measurement of the Left-Right Cross Section Asymmetry in Z Boson Production by e+e- Collisions Abstract We present a precise measurement of the left-right cross section asymmetry ($A_{LR}$) 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$\pm$1.1)\%. Using a sample of 49,392 $Z^0$ decays, we measure $A_{LR}$ to be 0.1628$\pm0.0071(stat.)\pm$0.0028(syst.) which determines the effective weak mixing angle to be $\theta_W^{eff}$=0.2292$\pm0.0009({\rm stat.})\pm0.0004({\rm syst.})$. (Equations render on Windows, Mac OS, AIX, Linux, Solaris, and IRIX with the techexplorer plug-in.) Full Text PDF slac-pub-6456 (691 KB) Compressed PostScript slac-pub-6456 (52.6 KB) Alternate download methods: old, ancient* *download methods - technical info More Information Full bibliographic data for this document, including its complete author list, is (or soon will be) available from SLAC's SPIRES-HEP Database. Please report problems with this file to posting@slac.stanford.edu. The SLAC preprint inventory is provided by the SLAC Technical Publications Department. Page generated 04 Apr 2001 @ 15:14 PDT by htmlme.pl
We present a precise measurement of the left-right cross section asymmetry ($A_{LR}$) 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$\pm$1.1)\%. Using a sample of 49,392 $Z^0$ decays, we measure $A_{LR}$ to be 0.1628$\pm0.0071(stat.)\pm$0.0028(syst.) which determines the effective weak mixing angle to be $\theta_W^{eff}$=0.2292$\pm0.0009({\rm stat.})\pm0.0004({\rm syst.})$. (Equations render on Windows, Mac OS, AIX, Linux, Solaris, and IRIX with the techexplorer plug-in.)
(Equations render on Windows, Mac OS, AIX, Linux, Solaris, and IRIX with the techexplorer plug-in.)
PDF slac-pub-6456 (691 KB) Compressed PostScript slac-pub-6456 (52.6 KB) Alternate download methods: old, ancient* *download methods - technical info
Full bibliographic data for this document, including its complete author list, is (or soon will be) available from SLAC's SPIRES-HEP Database.