Here is an updated version. <br><br><a href="http://quarks.temple.edu/~whit/SANE/talks/WArmstrong_PANIC2011.pdf">http://quarks.temple.edu/~whit/SANE/talks/WArmstrong_PANIC2011.pdf</a><br><br><br><br>The Spin Asymmetries of the Nucleon Experiment (SANE) measured the virtual Compton scattering asymmetries, $A_1$ and $A_2$, which determine the spin structure functions of the proton, $g_1$ and $g_2$. The kinematics for these measurements are in a range of Bjorken $x$, $0.3 < x < 0.8$, where extraction of the matrix element $d_2^p $ (an integral of $g_1$ and $g_2$ weighted by $x^2$) is most sensitive. The data was taken from $Q^2$ equal to $2.5 GeV^2$ up to $6.5 GeV^2$. In this polarized electron scattering off a polarized proton target experiment, two double spin asymmetries, $A_\parallel$ and $A_\perp$ were measured using the BETA (Big Electron Telescope Array) Detector. BETA consists of a scintillator hodoscope, gas Cherenkov, lucite hodoscope and a large array of lead glass detectors. We will discuss the analysis of BETA data in addition to the motivating physics of the proton's spin structure.<br>
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