[SLAC] [SLAC Pubs and Reports] SLAC-PUB-6493Precise Determination of the Weak Mixing Angle from a Measurement of ALR in e+e- --> Z0 Abstract In the 1993 SLC/SLD run, the SLD recorded 50,000 $Z^0$ events produced by the collision of longitudinally polarized electrons on unpolarized positrons at a center-of-mass energy of 91.26 GeV. The luminosity-weighted average polarization of the SLC electron beam was (63.0$\pm$1.1)\%. We measure the left-right cross-section asymmetry in $Z^0$ boson production, $A_{LR}$, to be 0.1628$\pm$0.0071(stat.)$\pm$0.0028(syst.) which determines the effective weak mixing angle to be $sin^2\theta_W^{eff}=0.2292\pm0.0009({\rm stat.})\pm0.0004({\rm syst.}).$ (Equations render on Windows, Mac OS, AIX, Linux, Solaris, and IRIX with the techexplorer plug-in.) Full Text PDF slac-pub-6493 (178 KB) Compressed PostScript slac-pub-6493 (72.2 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
In the 1993 SLC/SLD run, the SLD recorded 50,000 $Z^0$ events produced by the collision of longitudinally polarized electrons on unpolarized positrons at a center-of-mass energy of 91.26 GeV. The luminosity-weighted average polarization of the SLC electron beam was (63.0$\pm$1.1)\%. We measure the left-right cross-section asymmetry in $Z^0$ boson production, $A_{LR}$, to be 0.1628$\pm$0.0071(stat.)$\pm$0.0028(syst.) which determines the effective weak mixing angle to be $sin^2\theta_W^{eff}=0.2292\pm0.0009({\rm stat.})\pm0.0004({\rm syst.}).$ (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-6493 (178 KB) Compressed PostScript slac-pub-6493 (72.2 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.