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History of SLAC's Linear Collider Program
for Accelerator Physics and Particle Physics

 

1983     SLC Construction Starts

1987     SLC Construction Completed

1989     Start of physics program using the SLC
              MarkII is the first detector at the SLC Interaction Point
              April 11:   First Z decay at SLC observed by the MarkII detector.  This is the
                           first decay of a Z to quarks ever observed.
              April-September:  MarkII scans Z resonance to determine its mass and width
              September 6-13:   Europhysics Conference on High Energy Physics, Madrid. 
                                       MarkII presents result that number of neutrinos is less than
                                       3.9 at 95% confidence level.

1991     SLD replaces MarkII at the SLC Interaction Point
            SLD has first engineering run

1992     SLC Commissions Polarized Electron Source.  Polarization is 22%.
            May 2:  SLD observes first Z decay from collisions of polarized electrons
                        with unpolarized positrons

1993    Polarization of electron beam improves from 22% to 63% by using a
                strained GaAs photocathode.

1994    Polarization of electron beam improves from 63% to 75% by using a thin
                100nm-thick active layer of strained GaAs as the photocathode.

1996    SLD installs an improved CCD vertex detector with over 300 million pixels.

1998    SLD completes datataking on June 5.

1999    SLD request for further datataking is denied due to lack of available funding.

1999    Marty Breidenbach awarded Panofsky Prize by the APS "for his many
               contributions to e+e- physics, especially with the SLD detector at the
               Stanford Linear Collider.  His deep involvement in all aspects of the
               project led to important advances both in the measurement of
               electroweak parameters and in accelerator technology."