Kinematic Fitting of Two Photon Decays
From GlueXWiki
Procedure:
- generate 1 GeV η's which decay generically in the GlueX detector
- reconstruct η→γγ and π0→γγ
- π0 produced in η decay have low momentum
- very few additional "clean-up" cuts applied
- kinematically fit η's and π0's and examine confidence level distributions and pull distributions.
- tests the accuracy of the photon covariance matrix
Results: