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Opened 8 years ago

Last modified 8 years ago

#1060 new How to

Question regarding tau tagging in in leptonic channel — at Initial Version

Reported by: S. Niyogi Owned by:
Priority: major Milestone:
Component: Delphes code Version: Delphes 3
Keywords: Tau tagging module Cc:

Description

Hi,

I have a question regarding tau tagging in Delphes v3.3. Can Delphes tag a tau from its leptonic decay ? I find inside TauTagging.cc module

for(i = tau->D1; i <= tau->D2; ++i)
{

daughter1 = static_cast<Candidate *>(fParticleInputArray->At(i));
pdgCode = TMath::Abs(daughter1->PID);

if(pdgCode == 11
pdgCode == 13 pdgCode == 15) return -1;

..
..

If so, how can we tag a tau from its leptonic decay mode ?

Also, I found from another ticket that hhow tau tagging in delphes works: for each reconstructed jet, if we can find a hadronically decayed tau-parton inside a cone DR w.r.t the center of jet, then we apply the efficiency provided by the user using a RN. Then, Delphes does not use track information, does it ? What is use of
set TrackPTMin 1.0
set DeltaRTrack 0.2
inside tautagging module (given in ATLAS card) ?

I will appreciate if you can clarify some of these issues. Thank you in advance.

Regards,
Saurabh

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