Difference: JetFlavourTagging (15 vs. 16)

Revision 162013-07-24 - DanProtopopescu

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Jet Flavour Tagging Howto

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Once the AIDA Plots processors are run via Marlin, a text file PurityEfficiencyOutput.txt and a RAIDA root file are produced. We customised the MakePurityVsEfficiencyRootPlot.C macro and ran it to use the RAIDA file as input to produce the purity vs. efficiency plots:

Changed:

<
< root -l bbPurityVsEfficiencyRootPlotGla.C

>
> root -l MakePurityVsEfficiencyRootPlotGla.C

Here's a plot of our flavour tagging purity vs. efficiencies (using cca. 25k events):

Changed:

<
< The cut values and corresponding purity and efficiencies are tabulated in the file PurityEfficiencyOutput.txt. From these values, one can calculate and optimum b-cut.

>
>

The cut values and corresponding purity and efficiencies are tabulated in the file PurityEfficiencyOutput.txt. We used another Root macro to plot these values and determine the optimum b-cut.

For b-tagging, we've compared the plot produced by MakePurityVsEfficiencyRootPlotGla.C and graphs drawn with the data tabulated in PurityEfficiencyOutput.txt, for 1, 2, 3 or any number of vertices:

Useful Links

LCFIVertex Tutorial: http://www-pnp.physics.ox.ac.uk/~hillert/VP/LCFIVertex-v00-01/Tutorials.html
Trained Neural Nets: https://svnsrv.desy.de/viewvc/tagnet/LCFI_MokkaBasedNets/

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Changed:

<
<

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Added:

>
>

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META TOPICMOVED	by="DanProtopopescu" date="1373037183" from="LinearCollider.ZZfusionMain" to="LinearCollider.JetFlavourTagging"

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