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Use the Møller invariant mass to determine the mass resolution.

Run the org.hps.analysis.trackingperformance.MollerAnalysisDriver (currently in git issue #309 pending pull request) over the moller skim from pass8 of run 5772.

The output contains the following histograms for each of the three vertex collections: Unconstrained, BeamspotConstrained & TargetConstrained.

We will be using the TargetConstrained invariant mass and fitting with the Crystal Ball function to extract the resolution.

The aida file can be found here.

root file to come.

 

 

 

 

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