Figure 6

The distribution of rapidity-shifts for the events from the three different regions of measured asymmetry shown in Fig.~\ref{fig:AlphaDisbnData}. Determination of$y_{\rm 0}$ uses the difference in number of nucleons. For small values of this difference, the changes in values near $y_0 = 0$ are discrete, and are smeared into a continuous distribution as $y_{\rm 0}$ increases.
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