Alec Aivazis edited figures/Screen Shot 2014-11-29 at 10.59.40 AM/caption.tex  over 9 years ago

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\label{fig:money} The difference in mass between the lepton/jet pair in data (left) and various Monte Carlo samples of the target decay as discussed in section \ref{sect:introduction}. The spread in $\Delta$M provides an graphical representation for the amount by which the two particles came from the same parent and the spread in the average $M$ provides an understanding for the mass of the parent particle. As you can see in figure \ref{fig:money}, the data (left) shows that most events came from Z-bosons like the $dy$ process discussed in \ref{sect:background} as evident by the large collection of points centered around 90-100 90-110  GeV. From this, it is clear that the data is unlikely to contain the target decay as there does no seem to be any bunches of events that would indicate it as shown on the left graphs.