! E155 A_perpendicular for the proton and deuteron. ! Beam Energy: 38.80 GeV; Scattering Angle: ~5.5 deg; ! Source: P.M. King, ! "Precision Measurements of the Proton and Deuteron Polarized Structure Functions", pg157, ! Doctoral Dissertation, The College of William and Mary, (2000) unpublished. ! ! "x" pertains to the kinematic variable Bjorken x. ! is the statistically weighted average value of x for a particular bin. ! is the statistically weighted average value of the 4-momentum transferred squared. ! Aperp is the cross section asymmetry defined as: ! [sigma(downarrow Rightarrow) - sigma(uparrow Rightarrow)]/[sigma(downarrow Rightarrow) + sigma(uparrow Rightarrow)] ! where sigma is the cross section of a longitudinally polarized electron incident upon ! transverse polarized target. uparrow/downarrow indicates an electron polarization with/against the ! direction of travel of the incident electron. Rightarrow indicates the transversely polarized target nucleon. ! "stat" is the statistical error on Aperp. ! The angle (eg. 2.75, 5.5, or 10.5) represents the scattering angle at the center of a particular ! spectrometer's acceptance. It is measured relative to the beam direction. The angle "name" of ! the spectrometer is an approximate scattering angle of the electrons detected in that spectrometer. ! Notes: ! 1. These data correspond to those presented in ! G. Mitchell, "Precision Measurement of the Spin Structure Function g1(x,Q^2) for the Proton and Deuteron", ! Doctoral Dissertation, University of Wisconsin, (May 1999). ! !--------------------------------- ~5.5 deg------------------------------------! ! bin x range !-------------proton-----------!!-----------deuteron-----------! ! low high Aperp +-stat Aperp +-stat 0.067 0.075 0.072 3.71 0.102 0.149 0.072 3.71 -0.131 0.108 0.075 0.084 0.080 4.03 -0.088 0.080 0.080 4.03 0.021 0.058 0.084 0.095 0.090 4.39 -0.041 0.058 0.090 4.39 0.044 0.042 0.095 0.107 0.101 4.76 0.020 0.048 0.101 4.76 -0.009 0.035 0.107 0.120 0.113 5.14 -0.028 0.043 0.113 5.13 0.062 0.032 0.120 0.135 0.128 5.52 0.050 0.040 0.128 5.52 -0.011 0.030 0.135 0.152 0.144 5.91 -0.006 0.039 0.144 5.91 0.028 0.029 0.152 0.171 0.162 6.31 0.002 0.039 0.162 6.31 0.090 0.029 0.171 0.193 0.182 6.69 0.011 0.039 0.182 6.69 -0.011 0.030 0.193 0.217 0.205 7.07 0.026 0.041 0.205 7.07 -0.026 0.032 0.217 0.245 0.230 7.45 0.051 0.042 0.230 7.45 -0.018 0.034 0.245 0.275 0.259 7.83 0.009 0.045 0.259 7.83 0.054 0.036 0.275 0.310 0.292 8.19 0.063 0.047 0.292 8.19 0.098 0.039 0.310 0.349 0.328 8.53 -0.037 0.051 0.329 8.53 -0.016 0.042 0.349 0.393 0.370 8.89 0.064 0.055 0.370 8.88 -0.065 0.047 0.393 0.442 0.416 9.23 -0.032 0.061 0.416 9.23 0.061 0.053 0.442 0.498 0.468 9.54 -0.104 0.070 0.468 9.54 -0.004 0.061 0.498 0.560 0.526 9.82 0.001 0.080 0.527 9.82 0.049 0.074 0.560 0.631 0.593 10.08 -0.174 0.095 0.592 10.08 -0.095 0.089 0.631 0.710 0.666 10.35 0.045 0.117 0.666 10.36 -0.034 0.112 0.710 0.799 0.750 10.59 -0.316 0.158 0.749 10.57 0.263 0.143 0.799 0.900 0.843 10.79 0.348 0.268 0.843 10.79 0.052 0.189