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Plots

PF Photon Analysis

Here is an example PF photon pt histogram with a Single Gamma gun pt=100. Notice the large amount of fake reconstructed photons with near zero pt.

RecoPhotonsPt100.gif

Here are the pf photon efficiency and photon fake rates. A "matched" photon was define to be within a delta R of .2 and a delta pt of 2 (GeV/c).

Photons

Apparently the pf algorithm is not only incorrectly reconstructing photons but a large number of other particles. Here we also use the same matching criteria as above to pick out what pf thinks is some other pf particle but is actually a photon. The fake rates of each particle are also plotted. OtherPFs.gif

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GIFgif OtherPFs.gif r1 manage 18.7 K 2010-07-19 - 10:43 ChristopherSilkworth  
GIFgif Photons.gif r1 manage 9.2 K 2010-07-19 - 10:43 ChristopherSilkworth  
GIFgif RecoPhotonsPt100.gif r1 manage 6.5 K 2010-07-19 - 10:43 ChristopherSilkworth  
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Topic revision: r2 - 2010-07-19 - ChristopherSilkworth
 
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