[SLAC] [SLAC Pubs and Reports] SLAC-PUB-7291An Improved Measurement of the Left-Right Z0 Cross Section Asymmetry Abstract We present a new measurement of the left-right cross section asymmetry ($A_{LR}$) for $Z^0$ 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$\pm$0.52)\%. Using a sample of 93,644 $Z^0$ decays, we measure the pole-value of the asymmetry, $A^{0}_{LR}$, to be 0.1512$\pm$0.0042({\rm stat.})$\pm$0.0011({\rm syst.}) which is equivalent to an effective weak mixing angle of sin$^2\theta^{eff}_{W}$ = 0.23100\pm0.00054({\rm stat.})\pm0.00014({\rm syst.})$. (Equations render on Windows, Mac OS, AIX, Linux, Solaris, and IRIX with the techexplorer plug-in.) Full Text PDF slac-pub-7291 (139 KB) Compressed PostScript slac-pub-7291 (49 KB) Alternate download methods: old, ancient* *download methods - technical info techexplorer slac-pub-7291 (41.6 KB) More Information Full bibliographic data for this document, including its complete author list, is (or soon will be) available from SLAC's SPIRES-HEP Database. Please report problems with this file to posting@slac.stanford.edu. The SLAC preprint inventory is provided by the SLAC Technical Publications Department. Page generated 01 May 2001 @ 14:19 PDT by htmlme.pl
We present a new measurement of the left-right cross section asymmetry ($A_{LR}$) for $Z^0$ 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$\pm$0.52)\%. Using a sample of 93,644 $Z^0$ decays, we measure the pole-value of the asymmetry, $A^{0}_{LR}$, to be 0.1512$\pm$0.0042({\rm stat.})$\pm$0.0011({\rm syst.}) which is equivalent to an effective weak mixing angle of sin$^2\theta^{eff}_{W}$ = 0.23100\pm0.00054({\rm stat.})\pm0.00014({\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-7291 (139 KB) Compressed PostScript slac-pub-7291 (49 KB) Alternate download methods: old, ancient* *download methods - technical info techexplorer slac-pub-7291 (41.6 KB)
Full bibliographic data for this document, including its complete author list, is (or soon will be) available from SLAC's SPIRES-HEP Database.