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Below is a pair of plots showing Landau distributions of selected signals.

In the first plot, entries are made if ....

In the second plot, entries are made only if a signal exceeded ??x the pedestal sigma, and if neighboring strips were lower than ??x pedestal sigma. In addition, a downstream coincidence (with the other silicon detector) was required. This ensures that only min-i, non-charge-sharing signals are collected. A nice Landau is seen.