Kinematics to give central Q^2, W, t !**check that delta_sos ends up ~0. Need to ave. over phi or use only L&T Kaon/Pion: decay off, ctau=9999999. !**Check corrections in ntuple!!!! dEbeam = 0.0 beam width, raster size = 0 using_rad=0 spec_mode=1 using_eloss=0 mc_smear=0 delta limits 0.001% yptar/xptar 0.001 mr !**Check effect of tighter cuts in ntup. COULOMB CORRECTIONS OFF!!!