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Opened 6 years ago

Last modified 6 years ago

#1309 new How to

Lepton efficiency and isolation module

Reported by: kwei Owned by:
Priority: minor Milestone:
Component: Delphes code Version: Delphes 3
Keywords: Isolation Efficiency Cc:

Description

Hi,

I am trying to apply isolation criteria for lepton sector.
From different delphes cards, there are different ways to implement efficiency and isolation.

One of the way apply the Isolation module to select isolated lepton, and apply efficiency to isolated lepton.

A different way exchange the order, which apply efficiency to candidate lepton and then select isolated ones. When I tried this way, Isolation related variables would be all zero.
e.g.
Electron.SumPtCharged = 0.000000, 0.000000
Electron.SumPtNeutral = 0.000000, 0.000000
Electron.SumPtChargedPU = 0.000000, 0.000000
Electron.SumPt = 0.000000, 0.000000

Does this indicate that Isolation module is not implemented successfully?
Should we always implement Isolation module before applying efficiency?

Thanks a lot.

Best regards,

Kai Wei

Change History (1)

comment:1 by Michele Selvaggi, 6 years ago

The order should not matter much. Can you attach your card so that we can have a look?

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