! E155 spin structure function xg2 for the proton and deuteron. ! Beam Energy: 38.80 GeV. Combined data from all three E155 spectrometers. ! Source: E155 Collaboration (P.L. Anthony, et al.), ! "Measurement of the Proton and Deuteron Spin Structure Functions g2 ! and Asymmetry A2", pg532 Phys. Lett. B458: 529-535 (1999). ! ! "x" pertains to the kinematic variable Bjorken x. ! The data presented here use coarse binning from SLAC E143. ! is the statistically weighted average value of x for a particular bin. ! is the statistically weighted average value of the ! 4-momentum transferred squared in GeV^2. ! g2 is the spin structure function. See reference source above for details. ! "stat" is the statistical error on xg2. ! !------ xg2 for the three E155 Spectrometers combined --------! ! x bin range !----proton---!!---deuteron---! ! low high xg2 +-stat xg2 +-stat 0.014 0.023 0.022 1.15 0.439 0.335 -0.103 0.212 0.023 0.029 0.026 1.32 -0.069 0.088 0.060 0.056 0.029 0.047 0.039 1.56 -0.090 0.057 0.043 0.035 0.047 0.075 0.062 1.99 0.032 0.054 0.004 0.033 0.075 0.120 0.101 3.45 -0.056 0.042 0.045 0.026 0.120 0.193 0.161 5.41 -0.019 0.033 -0.007 0.020 0.193 0.310 0.256 7.54 0.015 0.029 -0.014 0.018 0.310 0.498 0.421 11.75 -0.039 0.024 -0.013 0.015 0.498 0.700 0.637 19.62 -0.023 0.015 0.009 0.010 0.700 0.900 0.839 27.18 0.002 0.005 -0.004 0.004