! E155 A_perpendicular for the proton and deuteron. ! Beam Energy: 38.80 GeV; Scattering Angle: ~2.75 deg; ! Source: P.M. King, ! "Precision Measurements of the Proton and Deuteron Polarized Structure Functions", pg156, ! Doctoral Dissertation, The College of William and Mary, (2000) unpublished.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). ! !--------------------------------- ~2.75 deg------------------------------------! ! bin x range !-------------proton-----------!!-----------deuteron-----------! ! low high Aperp +-stat Aperp +-stat 0.020 0.023 0.022 1.15 0.019 0.092 0.022 1.15 -0.040 0.069 0.023 0.026 0.025 1.25 0.020 0.037 0.025 1.25 0.001 0.028 0.026 0.029 0.027 1.35 -0.043 0.027 0.027 1.35 0.011 0.020 0.029 0.033 0.031 1.42 -0.017 0.028 0.031 1.42 0.010 0.020 0.033 0.037 0.035 1.48 -0.035 0.028 0.035 1.48 0.018 0.020 0.037 0.041 0.039 1.56 -0.029 0.028 0.039 1.56 0.046 0.020 0.041 0.047 0.044 1.65 -0.048 0.027 0.044 1.65 -0.032 0.020 0.047 0.052 0.049 1.76 0.022 0.027 0.049 1.76 0.006 0.019 0.052 0.059 0.056 1.86 -0.024 0.028 0.056 1.86 -0.031 0.020 0.059 0.067 0.063 1.95 0.011 0.028 0.063 1.95 0.003 0.020 0.067 0.075 0.071 2.05 0.005 0.028 0.071 2.05 0.007 0.020 0.075 0.084 0.079 2.16 -0.008 0.028 0.079 2.16 -0.033 0.020 0.084 0.095 0.089 2.26 0.017 0.029 0.089 2.26 0.019 0.021 0.095 0.107 0.101 2.35 -0.023 0.029 0.101 2.35 0.014 0.021 0.107 0.120 0.113 2.45 -0.058 0.030 0.113 2.45 0.034 0.021 0.120 0.135 0.128 2.55 0.004 0.030 0.128 2.55 0.002 0.022 0.135 0.152 0.144 2.64 0.018 0.031 0.144 2.64 0.006 0.023 0.152 0.171 0.162 2.72 -0.085 0.031 0.162 2.72 0.013 0.023 0.171 0.193 0.182 2.80 -0.001 0.031 0.182 2.80 -0.021 0.024 0.193 0.217 0.205 2.88 -0.021 0.032 0.205 2.88 -0.024 0.024 0.217 0.245 0.230 2.96 -0.002 0.033 0.230 2.96 0.001 0.025 0.245 0.275 0.259 3.03 0.030 0.034 0.259 3.03 -0.004 0.027 0.275 0.310 0.292 3.09 -0.019 0.037 0.292 3.09 -0.094 0.029 0.310 0.349 0.328 3.15 -0.069 0.040 0.328 3.15 -0.014 0.032 0.349 0.393 0.370 3.20 0.014 0.043 0.370 3.21 -0.018 0.035 0.393 0.442 0.416 3.26 0.043 0.047 0.416 3.26 0.050 0.040 0.442 0.498 0.468 3.29 -0.047 0.053 0.468 3.29 -0.027 0.046 0.498 0.560 0.527 3.33 -0.029 0.059 0.527 3.33 -0.022 0.054 0.560 0.631 0.593 3.36 0.005 0.066 0.593 3.35 -0.012 0.063 0.631 0.710 0.667 3.38 -0.082 0.075 0.668 3.38 0.049 0.074 0.710 0.799 0.752 3.40 -0.122 0.093 0.751 3.40 -0.008 0.085 0.799 0.900 0.846 3.43 -0.024 0.150 0.846 3.42 -0.349 0.105