[SLAC] [SLAC Pubs and Reports] SLAC-PUB-7701A Complete Order-alpha3 Calculation of the Cross Section for Polarized Compton Scattering Abstract % insert abstract here The construction of a computer code to calculate the cross sections for the spin-polarized processes $e^-\gamma\to e^-\gamma,e^-\gamma\gamma,e^-e^+e^-$ to order-$\alpha^3$ is described. The code calculates cross sections for circularly-polarized initial-state photons and arbitrarily polarized initial-state electrons. The application of the code to the SLD Compton polarimeter indicates that the order-$\alpha^3$ corrections produce a fractional shift in the SLC polarization scale of $-$0.1\% which is too small and of the wrong sign to account for the discrepancy in the Z-pole asymmetries measured by the SLD Collaboration and the LEP Collaborations. (Equations render on Windows, Mac OS, AIX, Linux, Solaris, and IRIX with the techexplorer plug-in.) Full Text PDF slac-pub-7701 (2.13 MB) Compressed PostScript slac-pub-7701 (145 KB) Alternate download methods: old, ancient* *download methods - technical info techexplorer slac-pub-7701 (4.65 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 04 Apr 2001 @ 15:10 PDT by htmlme.pl
% insert abstract here The construction of a computer code to calculate the cross sections for the spin-polarized processes $e^-\gamma\to e^-\gamma,e^-\gamma\gamma,e^-e^+e^-$ to order-$\alpha^3$ is described. The code calculates cross sections for circularly-polarized initial-state photons and arbitrarily polarized initial-state electrons. The application of the code to the SLD Compton polarimeter indicates that the order-$\alpha^3$ corrections produce a fractional shift in the SLC polarization scale of $-$0.1\% which is too small and of the wrong sign to account for the discrepancy in the Z-pole asymmetries measured by the SLD Collaboration and the LEP Collaborations. (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-7701 (2.13 MB) Compressed PostScript slac-pub-7701 (145 KB) Alternate download methods: old, ancient* *download methods - technical info techexplorer slac-pub-7701 (4.65 KB)
Full bibliographic data for this document, including its complete author list, is (or soon will be) available from SLAC's SPIRES-HEP Database.