Table of the dimuon polarizations observed in E866

 p+Cu -> mu+mu- + X, 800 GeV

                  Drell-Yan       Upsilon(1S)     Upsilon(2S+3S)

 pT bin (GeV)
 0.0 - 0.8       .952 +/- .031   -.114 +/- .095    .698 +/- .155     
 0.8 - 1.3       .984 +/- .031    .046 +/- .085    .989 +/- .150
 1.3 - 1.8      1.064 +/- .036    .058 +/- .080   1.050 +/- .145
 1.8 - 4.0      1.066 +/- .046    .312 +/- .070    .970 +/- .130

 xF bin
 .00 - .12       .975 +/- .040    .014 +/- .080    .871 +/- .140
 .12 - .23      1.012 +/- .035   -.061 +/- .075    .829 +/- .135
 .23 - .35       .919 +/- .040    .156 +/- .075    .886 +/- .140
 .35 - .60      1.091 +/- .050    .232 +/- .085   1.106 +/- .170

Note, the Drell-Yan polarizations have an added systematic uncertainty 
of +/- .02; they were fit to the sum of the events in the two sidebands: 
8.1 to 8.45 and 11.1 to 15.0 GeV in dimuon mass.          

Also, there is an additional +/- .06 systematic uncertainty in the 
Upsilon polarizations that should be added to the error bars above.