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 |
 |
 |
- |
- |
| ΔR(μ, τ)<0.2 |
2 |
|
- |
|
- |
| ΔR(μ, jet)<0.4 |
3 |
|
- |
- |
|
| ΔR(e, τ)<0.2 |
4 |
- |
|
|
- |
| ΔR(e, jet)<0.4 |
5 |
- |
|
- |
|
| ΔR(τ, jet)<0.4 |
6 |
- |
- |
|
|
(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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