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Re: How to implement Various PID Criteria for the analysis?? [message #18846 is a reply to message #18825]

Tue, 05 January 2016 10:23

Ralf Kliemt
Messages: 507
Registered: May 2007
Location: GSI, Darmstadt

first-grade participant

From: *gsi.de

Hello Ajay.

I can see a few reasons why you don't see differences, those may overlap.

- Selection of keywords: "All" up to "Loose" is for particles with a low likelihood for your hypothesis. Here are the cut values connected to the keywords (defaults in macro/params/all.par):
0.00 - "All"
0.00 - "VeryLoose"
0.25 - "Loose"
0.50 - "Tight"
0.90 - "VeryTight"

- Your channel: Your signals that survive the simulations/reconstruction and you selection may be just identified very well. Signal Protons should stick out quite well against signal pions.

- Simulation setup. Depending if it is full or fast simulations, how well the forward part is implemented, etc. you'll find various PID efficiencies.

Cheers!
Ralf

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[Message index]

		How to implement Various PID Criteria for the analysis?? By: Ajay Kumar on Thu, 10 December 2015 12:11
		Re: How to implement Various PID Criteria for the analysis?? By: StefanoSpataro on Thu, 10 December 2015 22:33
		Re: How to implement Various PID Criteria for the analysis?? By: Ralf Kliemt on Tue, 05 January 2016 10:23

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