%RESPONSIBLE%
TrishaFarooque
%CERTIFY%

VlqCluster

Introduction

This twiki summarises the activitites in the cluster of ATLAS VLQ analyses in preparation for full Run-2 results

List of full Run 2 analyses

--+ Pair production

Analysis Nlep R20.7 result Code repository
TT -> Wb + X 1lep - -
BB -> Wt + X 1lep - -
TT -> Z(ll)t + X 2lep OS - -

Analysis Code repository TT BB single T single B
Wb + X - v x x x
Wt + X - x v x x
OS-ML - v v v x
SS-ML - v x v x
Z(vv)t + X - v x x x
Ht/Zt + X - v x v x
All-had - v v x x
1lep T - x x v x
bH(yy) - x x x v
Mono-top - x x v x

Contacts

Single production: Janet Dietrich janet.dietrich@SPAMNOTcernNOSPAMPLEASE.ch

mailing list: atlas-phys-exotics-singlevlq-fullrun2@SPAMNOTcernNOSPAMPLEASE.ch

Pair production: Trisha Farooque trisha.farooque@SPAMNOTcernNOSPAMPLEASE.ch

mailing list: atlas-phys-exotics-vlqpair-fullrun2@SPAMNOTcernNOSPAMPLEASE.ch

Meetings

Thursdays 16:00

Schedule of topical meetings

Organisational meeting: 12th June, 2018

Common tasks

List of topics

Task list

Common tools

Introduction

This Twiki summarises the analyses object definitions and selections to keep a reference of what the analyses are currently doing. The objective is to aid the discussions of VLQ combinations.

Pair production VLQ analyses

Expected BR sensitivity

Indicate if you expect the analysis to be sensitive to the given decay (high, medium, low) and which final-state will be driving that sensitivity.

Analysis T→Zt T→Ht T→Wb B→Zb B→Hb B→Wt
SS+b medium(ZtZt) medium(ZtHt) low(ZtWb) low(WtZb) low(WtHb) high(WtWt)
VLQ OS high(ZtZt) low(ZtHt) low(ZtWb) high(ZbZb) low(ZbHb) low(ZbWt)
Ht+X/4t (l+jets) mild high mild      
Wb+X (l+jets) mild(WbZt) mild(WbHt) high(WbWb)      
Low MET VLQ (all had) low(WbZt) low(WbHt) high(WbWb) high(ZbZb) high(HbHb) low(Z/HbWt)
High MET VLB (all had)       high(ZbZb) mild(ZbHb) low(ZbWt)
Ht+X/4t (0l+MET) high high(ZtHt) mild      
High MET VLQ (1l + jets) for Zt+X high (ZtZt) low (ZtHt) low (ZtWb) -- -- --
Wt+X (l+jets)       mild(WtZb) mild(WtHb) high(WtWt)

Liaisons

Analysis Liaisons INT note
SS+b Sarah Jones & Matt LeBlanc https://cds.cern.ch/record/2224335
VLQ OS Juan Pedro Araque Espinosa https://cds.cern.ch/record/2238984
Ht+X/4t (1-lep) Trisha Farooque https://cds.cern.ch/record/2225211 & https://cds.cern.ch/record/2282678
Wb+X (1-lep) Matthias Danninger https://cds.cern.ch/record/2224325
High-MET Zt+X (1-lep) Jan Küchler https://cds.cern.ch/record/2225429
Full-had Olaf Nackenhorst https://cds.cern.ch/record/2266580
Wt+X (1-lep) Steffen Henkelmann https://cds.cern.ch/record/2291660

Object and region definitions

See ongoing spreadsheet. Maintained by the analysis liaisons. This is likely outdated by now

Naming conventions

Conventions are defined for the nuisance parameter sets, regions and samples. The wiki here summarizes this convention.

Overlap studies

This wiki contains the informations about the procedure to estimate the overlaps between the different analyses.

Combination workflow

This wiki contains the informations about the workflow and the codes run for every step.

Single production VLQ analyses

  • Expected BR sensitivity: Indicate if you expect the analysis to be sensitive the given decay (high, medium, low) and which final-state will be driving that sensitivity.

Analysis T→Zt T→Ht T→Wb B→Zb B→Hb B→Wt
Monotop T->Zt, Z->vv (all had) high low low medium (depends on optimization) low low
Monotop T->Zt, Z->vv (l+jets) high          
Single VLQ (l+jets) medium/low (depends on top/Z decay) low high low low high

  • Object definitions:

Analysis DxAOD Electrons Muons Small-R jets Large-R jets MET b-tagging Taus
Monotop T->Zt, Z->vv (all had)   TightLH, Gradient isolation, pT > 25 GeV, TTVA: abs(sig d0) < 5, abs(delta z0 * sin(theta)) < 0.5 mm Medium, gradient isolation, pT > 25 GeV, TTVA: abs(sig d0) < 3, abs(delta z0 * sin(theta)) < 0.5 mm akt4, EMTopo, pT > 25 GeV, abs(eta) < 4.5, JVT > 0.64 for pT < 50 GeV and abs(eta) < 2.4, tight jet cleaning (!) akt10 w/ standard trimming, LCTopo, pT > 250 GeV, abs(eta) < 2.0, m > 50 GeV MET_Reference_AntiKt4EMTopo > 200 GeV MV2c20 on R=0.2 track jets (pT > 10 GeV, abs(eta) < 2.5), fixed cut 70% -
Monotop T->Zt, Z->vv (l+jets)                
Monotop T->Zt, Z->vv (l+jets)   TightLH, gradient iso, pt>25 GeV medium, gradient, pt>25 GeV akt4, pt>25 GeV under study: atk10, pt>200 GeV, W-tag or top-veto reclustered jets > 20 GeV, MET+MTW > 60 GeV >=1 mv2c20, just test track jets -
Single VLQ (l+jets)   TightLH, gradient iso, pt>25 GeV medium, gradient, pt>25 GeV akt4, pt>25 GeV under study: atk10, pt>200 GeV, W-tag or top-veto reclustered jets > 20 GeV, MET+MTW > 60 GeV >=1 mv2c20, just test track jets -

  • Event selection
    • Monotop T->Zt, Z->vv (all had) (currently being optimized)
      • tight jet cleaning on all small-R jets
      • lepton veto
      • MET veto in phi against dead Tile regions (under study)
      • MET > 200 GeV
      • exactly one top-tagged large-R jet (WP under study)
      • exactly one b-tagged tracked jet
    • Monotop T->Zt, Z->vv (l+jets)
      • Describe your event selection here.
    • Single VLQ (l+jets)
      • T/Y-> Wb: lepton trigger + 1 lepton (el, μ), leading jet pT > 350 GeV, b-tagged, ETmiss > 70 GeV, mT(W) + ETmiss > 60 GeV, |Φ(l,b-jet)| > 2.5, veto hard cent. jets with, ΔR(j,b-jet) < 1,2 or ΔR(j,b-jet) > 2,7, ≥ 1 fwd. jets
      • B-> Wt (still under study): single lepton trigger + 1 lepton (el, μ), ETmiss > 20 GeV, mT(W) + ETmiss > 60 GeV, ≥ 1 b-tagged jet, ≥ 1 reclustered jet pT > 350/700 GeV (B/b*), m > 70 GeV, ≥ 1 fwd. jets (b*)


%RESPONSIBLE% Main.TrishaFarooque
%REVIEW% Never reviewed

-- TrishaFarooque - 2018-07-10

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Topic revision: r4 - 2018-07-12 - TrishaFarooque
 
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