CommonLephadAnalysisSelection

Introduction

Describes the baseline selection and corrections to be used for the cut flow challenge. Links to performance group packages and cut flow samples/results are given at the bottom.

Selection

Event Preselection
GRL [data only]  
Vertex  
Trigger  
MET cleaning  
Jet Cleaning  
MC truth bug  
Pileup reweighting Weight MC following
Online Trigger
Trigger used  
Trigger weight  
Physics Object Selection
Muons (Loose)
ID Track Cuts Pass
Impact parameter Cuts  
abs(ηclus) range abs(ηclus) < ?
ET range ET > ? GeV
Track Isolation  
Quality  
smearing / scaling apply the latest smearing functions and efficiency scale factors on MC as outlined
Electrons(Loose)
e-ID  
track Isolation  
Impact parameter Cuts  
Object Cleaning  
smearing/scaling  
Jets(Loose)
Algorithm  
Kinematics pT > ? GeV and abs(η)< ?

Overlap Removal
Case Order Keep μ Keep e Keep τ Keep jet
ΔR(μ, e)<0.2 1 Yes / Done No - -
ΔR(μ, τ)<0.2 2 Yes / Done - No -
ΔR(μ, jet)<0.4 3 Yes / Done - - No
ΔR(e, τ)<0.2 4 - Yes / Done No -
ΔR(e, jet)<0.4 5 - Yes / Done - No
ΔR(τ, jet)<0.4 6 - - Yes / Done No
(Note: we can put more elaborated condition, e.g. electron OR based on LLH, if needed.)

Signal Muons
ID  
Isolation  
Kinematic  

Signal Electrons
ID  
Isolation  
Kinematic  

Signal Taus
ID  
Isolation  
Kinematic  

Missing ET
MET Calculation  

tau-lep mass reconstruction
MMC  
MOSAIC  

Signal Region (SR) definition

Ztautau tag probe analysis

Signal Region (SR)
Trigger Matching Signal lepton must be matched to trigger within ΔR=0.1 for
Lepton Selection  
Lepton veto Any additional loose leptons
Missing ET [MET] MET
Lepton and MET Transverse Mass [MT] MT < 50 / GeV
Cos(DPhi(lepton, MET) ) + Cos(DPhi(tau, MET) ) (SumDPhi) SumDPhi>0.1

Zee tag probe analysis

BSM Htautau analysis

SM Htautau analysis

Control Region (CR) definition

W Control Region (WCR) definition

Ztautau tag probe analysis

BSM Htautau analysis

SM Htautau analysis

Z Control Region (ZCR) definition

Zee tag probe analysis

QCD Multi-jet Control Region (QCDCR) definition

Ztautau tag probe analysis

BSM Htautau analysis

SM Htautau analysis

Background Estimation Method

W+jets

Ztautau tag probe analysis

BSM Htautau analysis

SM Htautau analysis

Z+jets

Zee tag probe analysis

QCD Multi-jet

Ztautau tag probe analysis

BSM Htautau analysis

SM Htautau analysis

Packages and Tools

For information on the performance group and HSG5 packages/tools needed and how to use them please see:

Cut Flow Challenge

For details of the cut flow challenge (to be completed by all groups) please see:


Major updates:
-- LeiZhang - 16-Aug-2015

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Topic revision: r5 - 2015-08-16 - LeiZhang
 
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