! E155 g1 and g1/F1 for the proton. ! Beam Energy: 48.35 GeV. ! Source: T.S. Toole, "A Precision Measurement of the Spin Structure ! Functions g1p and g1d", pg203, ! Ph. D. thesis, American University, (2000) unpublished. ! ! "x" pertains to the kinematic variable Bjorken x. ! is the statistically weighted average value of x for a particular bin. ! These data use E155 coarse bins. ! is the statistically weighted average value of the 4-momentum transferred squared. ! g1 is the spin dependent structure function. ! See E155 Collaboration, P.L. Anthony et al., Phys. Lett. B493, 19 (2000) for details. ! F1 is taken from the NMC fit (NMC, P. Ardeodo et al., Phys. Lett. B364 (1995) 107). ! "stat" and "syst" are the statistical and systematic errors on g1 or g1/F1. ! 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. ! "spect." indicates the spectrometer arm which was used to make the measurement. ! Notes: (1) These data correspond to those presented in Phys. Lett. B493, 19 (2000). ! !------------------------------------- proton --------------------------------------! ! bin x range ! spect. low high g1 +-stat +-syst g1/F1 +-stat +-syst 2 0.010 0.020 0.015 1.22 0.358 0.069 0.035 0.048 0.009 0.004 2 0.020 0.030 0.025 1.59 0.281 0.040 0.030 0.057 0.008 0.006 2 0.030 0.040 0.035 2.05 0.266 0.030 0.027 0.070 0.008 0.007 2 0.040 0.060 0.050 2.58 0.313 0.024 0.025 0.111 0.009 0.009 2 0.060 0.100 0.080 3.24 0.287 0.017 0.023 0.155 0.009 0.013 2 0.100 0.150 0.125 4.03 0.228 0.015 0.022 0.186 0.012 0.018 2 0.150 0.200 0.175 4.62 0.240 0.020 0.020 0.273 0.023 0.023 2 0.200 0.300 0.250 5.06 0.210 0.014 0.018 0.358 0.023 0.030 2 0.300 0.400 0.350 5.51 0.150 0.017 0.014 0.424 0.049 0.039 2 0.400 0.600 0.500 5.77 0.088 0.009 0.008 0.561 0.058 0.048 5 0.040 0.060 0.050 4.01 0.690 0.273 0.031 0.222 0.088 0.009 5 0.060 0.100 0.080 5.36 0.303 0.022 0.026 0.150 0.011 0.013 5 0.100 0.150 0.125 7.17 0.274 0.010 0.023 0.209 0.007 0.018 5 0.150 0.200 0.175 8.90 0.226 0.011 0.021 0.247 0.012 0.023 5 0.200 0.300 0.250 10.64 0.206 0.006 0.018 0.353 0.011 0.030 5 0.300 0.400 0.350 12.60 0.154 0.007 0.013 0.466 0.020 0.039 5 0.400 0.600 0.500 14.02 0.072 0.003 0.006 0.561 0.024 0.048 5 0.600 0.900 0.750 15.70 0.009 0.001 0.001 0.622 0.091 0.050 10 0.100 0.150 0.125 10.99 0.415 0.068 0.026 0.307 0.050 0.018 10 0.150 0.200 0.175 13.19 0.282 0.020 0.022 0.304 0.022 0.023 10 0.200 0.300 0.250 17.21 0.229 0.008 0.018 0.396 0.014 0.030 10 0.300 0.400 0.350 22.73 0.157 0.008 0.012 0.500 0.025 0.038 10 0.400 0.600 0.500 26.86 0.058 0.005 0.006 0.507 0.042 0.048 10 0.600 0.900 0.750 34.72 0.006 0.004 0.001 0.559 0.405 0.050