AllHadttbb < Sandbox

---+ All hadronic ttbb analysis

---++ Theory information

   * https://arxiv.org/pdf/1610.07922.pdf - LHC Higgs Cross-Section WG Yellow Report
   * https://indico.cern.ch/event/669831/ - Theory: Common meeting on tt+b-jet backgrounds to ttH(bb)  
   * https://indico.cern.ch/event/686494/contributions/3040042/attachments/1669643/2677951/HEHL-Higgs.pdf - Fabrizio Caola's talk at thel workshop HL-HE LHC

   * https://arxiv.org/abs/1010.0632 - Improved iterative Bayesian unfolding -G. D'Agostini


---++ Papers and other publications

   * https://arxiv.org/pdf/hep-ph/0202174.pdf - Adam K. Leibovich and David Rainwater -- Increased Yield oft ttbb at Hadron Colliders in Low-EnergySupersymmetry
   * https://arxiv.org/abs/1701.04427 -- ttbb as a probe of New Physics at the LHC
   * https://www.uzh.ch/cmsssl/physik/dam/jcr:063755ac-e64a-4270-b209-5190b653a7d5/10_poster.pdf -- Poster -- conf. note ttbb measurements in the all-hadronic channel in CMS
   * https://arxiv.org/pdf/1909.05306.pdf -- paper ttbb measurements in the all-hadronic channel in CMS
   * https://link.springer.com/content/pdf/10.1007%2FJHEP04%282019%29046.pdf - ATLAS ttbb publication at 13 TeV
   * http://cds.cern.ch/record/2675029/files/TOP-18-011-pas.pdf - CMS all-had ttbb publication at 13 TeV
   * https://arxiv.org/pdf/1910.14535v1.pdf - Identification of additional jets in the t-tbar b-bbar events using neural network
   * https://cds.cern.ch/record/2214130/files/ATL-PHYS-PROC-2016-137.pdf - Charged Higgs boson searches in ATLAS and CMS
   * https://arxiv.org/pdf/1005.4409.pdf - Long-lived charged Higgs at LHC as a probe of scalarDark Matter
   * https://cds.cern.ch/record/1644428 - CDS page internal note on the all-had. top quark measurements at 8 TeV in ATLAS
   * https://cds.cern.ch/record/2125782 - CDS page, Tom's Thesis all-had. top quark measurements at 8 TeV in ATLAS
   * https://publications.mppmu.mpg.de/2009/MPP-2009-132/FullText.pdf - MPP page, E. Rauter's thesis "Top Quark Mass Measurement" With matching information


---++ ATLAS information

   * https://indico.cern.ch/event/684782/ -Top Workshop 17-19 April 2018 : On the way to high precision
   * See talk of U. de Sanctis https://indico.cern.ch/event/684782/contributions/2953729/attachments/1634778/2608155/BfragmentationTop_Umberto.pdf and Andrea Knue https://indico.cern.ch/event/684782/contributions/2953731/attachments/1634972/2608075/TopWorkshop_MCissues_AndreaKnue.pdf
   * PMG page with MC information: https://twiki.cern.ch/twiki/bin/view/AtlasProtected/CentralMC16ProductionList
   * PMG page with MC generation info <a href="https://twiki.cern.ch/twiki/bin/viewauth/AtlasProtected/PmgMcSoftware#Versions_release_21_6_AthGenerat"_blank"> https://twiki.cern.ch/twiki/bin/viewauth/AtlasProtected/PmgMcSoftware#Versions_release_21_6_AthGenerat </a>
   * Internal note ttH <a href="https://gitlab.cern.ch/atlas-physics-office/SUSY/ANA-SUSY-2018-38/ANA-SUSY-2018-38-INT1/blob/master/ANA-SUSY-2018-38-INT1.pdf"_blank">https://gitlab.cern.ch/atlas-physics-office/SUSY/ANA-SUSY-2018-38/ANA-SUSY-2018-38-INT1/blob/master/ANA-SUSY-2018-38-INT1.pdf</a>


---++ KLFitter information

   * KLFitter documentation - https://github.com/KLFitter/KLFitter/blob/master/doc/WhatIsKLF.md
   * Twiki page - https://twiki.cern.ch/twiki/bin/viewauth/AtlasProtected/KLFitter
   * KLFitter mailing list - KLFitter-Users@cern.ch

---++ Monte Carlo samples:
  *mc16_13TeV.411068.PhPy8EG_A14NNPDF23_NNPDF30ME_ttbb4F_PhOL_hdampHThalf_semilep.deriv.DAOD_TOPQ1.e6765_e5984_a875_r9364_r9315_p3598_tid15796803_00 
  *mc16_13TeV.411069.PhPy8EG_A14NNPDF23_NNPDF30ME_ttbb4F_PhOL_hdampHThalf_dilep.deriv.DAOD_TOPQ1.e6784_e5984_a875_r9364_r9315_p3598_tid15796808_00
  *mc16_13TeV.411070.PhPy8EG_A14NNPDF23_NNPDF30ME_ttbb4F_PhOL_hdampHThalf_allhad.deriv.DAOD_TOPQ1.e6938_e5984_a875_r9364_r9315_p3654_tid15875824_00

---++ Monte Carlo samples request:
   * See ATLAS Top WG twiki page:  https://twiki.cern.ch/twiki/bin/view/Sandbox/MCrequestHowTo#Make_your_case_as_a_requester
   * See ATLMCPROD page: https://its.cern.ch/jira/projects/ATLMCPROD/issues/ATLMCPROD-8060?filter=allopenissues
   * See request made for the new POWHEG ttbb  l+jets samples: https://its.cern.ch/jira/browse/ATLMCPROD-9179?jql=text%20~%20%22ttbb%22
 
---++ Git repository analyses code and internal Note
   * Gitlab Margherita's 
repository (see also for documentation): <a href="https://gitlab.cern.ch/mspalla/analysis_ttbballhad/tree/master" target="_blank">https://gitlab.cern.ch/mspalla/analysis_ttbballhad/tree/master</a>
   * New Gitlab repository: <a href="https://gitlab.cern.ch/MPP-HEC/allhadttbb" target="_blank">https://gitlab.cern.ch/MPP-HEC/allhadttbb"</a>
   * Gitlab old ttbar top mass measurement repository: <a href="https://gitlab.cern.ch/MPP-HEC/allhadttbar" target="_blank">https://gitlab.cern.ch/MPP-HEC/allhadttbar"</a>
   * New Gitlab repository for our intnote <a href="https://gitlab.cern.ch/MPP-HEC/intallhadttbb" target="_blank">https://gitlab.cern.ch/MPP-HEC/intallhadttbb"</a>

---++ LHCPhysics Web Page links
   * Main LHC Physics web page link: https://twiki.cern.ch/twiki/bin/view/LHCPhysics/WebHome
   * lLHC Higgs Cross Section Working Group 1ink: https://twiki.cern.ch/twiki/bin/view/LHCPhysics/LHCHWG1


---++ Analysis ttbb Event selection

---+++ Preselection
| *Cut in config file* | *Description* |
| INITIAL | framework default |
| GRL | GRL used: see below|
| PRIVTX | Primary vertex (framework default) |
| GOODCALO | framework default, probably 'no calorimeter errors' |
| NOBADMUON | framework default  |
| TTBB_TTBAR_VETO | remove ttbb events from ttbar MC to avoid double counting, acts on parton-level |
| CUT_MC_WEIGHT | remove MC events with too large event weight (w>1000)|
| EL_N 25000 == 0 | No electrons with pt>25 GeV|
| MU_N 25000 == 0 | No muons with pt>25 GeV|
| MET < 60000 | Missing Et < 60 GeV|
| JET_N 25000 >= 8 | At least 8 jets of pt>25 GeV and abs(eta)<2.5 |

Good Run List (GRL) and PileUp reweighting files used:
| *Year* | *files* |
| 2018 | PRWConfigFiles_FS dev/AnalysisTop/PileupReweighting/user.iconnell.Top.PRW.MC16e.FS.v2/prw.merged.root |
 | ^ | PRWConfigFiles_AF dev/AnalysisTop/PileupReweighting/user.iconnell.Top.PRW.MC16e.AF.v2/prw.merged.root |
  | ^ | PRWActualMu_FS GoodRunsLists/data18_13TeV/20190318/physics_25ns_Triggerno17e33prim.actualMu.OflLumi-13TeV-010.root |
  | ^ | PRWActualMu_AF GoodRunsLists/data18_13TeV/20190318/physics_25ns_Triggerno17e33prim.actualMu.OflLumi-13TeV-010.root |
   | ^ | PRWLumiCalcFiles GoodRunsLists/data18_13TeV/20190318/ilumicalc_histograms_None_348885-364292_OflLumi-13TeV-010.root |
| 2017 | PRWConfigFiles_FS dev/AnalysisTop/PileupReweighting/user.iconnell.Top.PRW.MC16d.FS.v2/prw.merged.root |
   | ^ | PRWConfigFiles_AF dev/AnalysisTop/PileupReweighting/user.iconnell.Top.PRW.MC16d.AF.v2/prw.merged.root |
   | ^ | PRWActualMu_FS GoodRunsLists/data17_13TeV/20180619/physics_25ns_Triggerno17e33prim.actualMu.OflLumi-13TeV-010.root |
    | ^ | PRWActualMu_AF GoodRunsLists/data17_13TeV/20180619/physics_25ns_Triggerno17e33prim.actualMu.OflLumi-13TeV-010.root |
     | ^ | PRWLumiCalcFiles GoodRunsLists/data17_13TeV/20180619/physics_25ns_Triggerno17e33prim.lumicalc.OflLumi-13TeV-010.root |
| 2016/15 | PRWConfigFiles_FS dev/AnalysisTop/PileupReweighting/user.iconnell.Top.PRW.MC16a.FS.v2/prw.merged.root |
    | ^ | PRWConfigFiles_AF dev/AnalysisTop/PileupReweighting/user.iconnell.Top.PRW.MC16a.AF.v2/prw.merged.root |
    | ^ | PRWLumiCalcFiles GoodRunsLists/data15_13TeV/20170619/PHYS_StandardGRL_All_Good_25ns_276262-284484_OflLumi-13TeV-008.root GoodRunsLists/data16_13TeV/20180129/PHYS_StandardGRL_All_Good_25ns_297730-311481_OflLumi-13TeV-009.root |
   
---+++ 2b2j trigger
   * Triggers used:  
      * 2018:  =HLT_2j35_bmv2c1060_split_2j35_L14J15.0ETA25=
      * 2017:  =HLT_2j25_gsc45_bmv2c1060_split_2j25_gsc45_boffperf_split_L14J15.0ETA25=
      * 2016:  =HLT_2j35_bmv2c2060_split_2j35_L14J15.0ETA25=
      * 2015: ??  
   * Offline cut:
      * At least 4 jets of pt>55 GeV
      * At least 2 of these jets must be b-tagged (MV2c10 @ 60% WP)

---+++ 7j trigger
   * Triggers used:  
      * 2018 / 2017 / 2016:  =HLT_7j45_L14J15=
      * 2015: ??  
   * Offline cut:
      * At least 7 jets of pt>55 GeV

---+++ ttbar reconstruction in ttbb events
   * KLFitter 3-1-10, 1T Likelihood.
      * Alternative: chi2, parametric or not.  
   * Latest summary: [[https://indico.cern.ch/event/1029834/contributions/4323876/attachments/2231298/3780804/top_reco_ttbb_4.pdf][presentation]] at Top Reconstruction.  
   * Merge request of KLFitter to athena: [[https://gitlab.cern.ch/atlas/athena/-/merge_requests/37695][!37695]]
   * KLfitter Likelihood cut: *log(L) > -50*

---+++ Extra two b-jets reconstruction in ttbb events
Select in the event two extra b-jets with the largest b-tag weight (MV2c10 @ 60WP) among those *not* used by KLFitter

---++ Background estimation done with the ABCD method

Independent variables used:
   * <latex> R_{32} = m_{jjj} / m_{jj} </latex>
   * <latex> N_{b\text{-Tag}} </latex> : number of b-tagged jets (MV2c10 @ 60% WP) 
   * Where <latex>m_{jjj} </latex> (<latex>m_{jj} </latex>) is the mass of the 3 jets (2 light-jets) forming one of the top-quarks (Ws) in the ttbb events  

Definitions of Control Region (CR) and Signal Region (SR) used in the ABCD method

|                                                                 | <latex> R_{32} \notin [1.8,2.4] </latex>   |  <latex> R_{32} \in [1.8,2.4] </latex> |
| <latex> N_{b\text{-Tag}}<3 </latex>        | CR A                                                        | CR B |
| <latex> N_{b\text{-Tag}} \geq 3 </latex> | CR C                                                        | *SR D* |


---++ List of meetings at MPP

| *Date* | *Indico link*
| 24/11/2021 | https://indico.cern.ch/event/1070855/    | Status update talk given by Nina in the Xsec meeting |
| 17/11/2021 | https://indico.cern.ch/event/1070854/    | Definition of extra b-jets talk given by Teresa in Xsec. meeting |
| 18/06/2021 | https://indico.mpp.mpg.de/event/8260/ | ABDC and new sample mj - MC studies (Nina)|
| 02/06/2021 | https://indico.cern.ch/event/1023083/   | Status update talk given by Margherita in the top Xsec meeting|
| 22/04/2021 |  https://indico.cern.ch/event/1029834/  | 1T KLfitter and Chi2 results presented by Margherita in the top Reco meeting |
| 17/03/2021 |  https://indico.mpp.mpg.de/event/8030 | 1T KLFitter results (Margherita) - Comparison of correction ration-values(Nina)|
| 03/03/2021 |  https://indico.mpp.mpg.de/event/8000 | ATLAS style macro, ABCD/BDT methods (Nina)|
| 24/02/2021 | https://indico.mpp.mpg.de/event/7917/ | MadGraph (Teresa), Status 1T +Uncertainty on the efficiency  (Margherita) ABCD distributions (Nina)| 
| 17/02/2021 | https://indico.mpp.mpg.de/event/7953/ | ABCD distributions (Nina) |
| 10/02/2021 | https://indico.mpp.mpg.de/event/7918/ | MadGraph Stsudies (teresa), ABCD studies (Nina)|
| 03/02/2021 | https://indico.mpp.mpg.de/event/7917/ | Status 1T KLfitter (Margherita), ABCD distributions (Nina) |
| 27/01/2021 | https://indico.mpp.mpg.de/event/7897/ | ABCD studies (Nina)|
| 20/01/2021 | https://indico.mpp.mpg.de/event/7866/ | - |
| 13/01/2021 | https://indico.mpp.mpg.de/event/7848/ | - |
| 18/12/2020 | https://indico.mpp.mpg.de/event/7826/ | Single-T results (Margherita); ttbar background-studies and TOPQ4 derivation (Nina)|
| 04/12/2020 | https://indico.mpp.mpg.de/event/7757/ | Single T results (Margherita);  pt cut studies and continuous btagging (Nina)|
| 26/11/2020 | https://indico.mpp.mpg.de/event/7718/ | Meeting with Mike Fenton |
| 25/11/2020 | https://indico.mpp.mpg.de/event/7756/ | - |
| 18/11/2020 | https://indico.mpp.mpg.de/event/7698/ | - |
| 11/11/2020 | https://indico.mpp.mpg.de/event/7697/  | Bug fix (Margherita); et_truthParton studies | first ABCD bckg studies (Nina)|
| 28/10/2020 | https://indico.mpp.mpg.de/event/7664/ |  jet_truthParton studies (Nina)|
| 21/10/2020 | https://indico.mpp.mpg.de/event/7663/ | - |
| 14/10/2020 | https://indico.mpp.mpg.de/event/7646/ | - |
| 02/10/2020 | https://indico.mpp.mpg.de/event/7599/ | - |
| 23/09/2020 | https://indico.mpp.mpg.de/event/7598/ | - |
| 16/09/2020 | https://indico.mpp.mpg.de/event/7572/ | - |
| 09/09/2020 | https://indico.mpp.mpg.de/event/7571/ | - |
| 02/09/2020 | https://indico.mpp.mpg.de/event/7559/ | - |
| 31/07/2020 | https://indico.mpp.mpg.de/event/7535/ | -  |
| 24/07/2020 | https://indico.mpp.mpg.de/event/7525/ | -  |
| 14/07/2020 | https://indico.mpp.mpg.de/event/7497/ | -  |
| 29/06/2020 | https://indico.mpp.mpg.de/event/7467/ | -  |
| 22/06/2020 | https://indico.mpp.mpg.de/event/7456/ | -  |
| 12/06/2020 | https://indico.mpp.mpg.de/event/7429/ | -  |
| 29/05/2020 | https://indico.mpp.mpg.de/event/7407/ | Sven's talk on the production of Multi-b background events|
| 20/05/2020 | https://indico.mpp.mpg.de/event/7389/ | -  |
| 13/05/2020 | https://indico.mpp.mpg.de/event/7373/ | -  |
| 06/05/2020 | https://indico.mpp.mpg.de/event/7344/ | -  |
| 27/04/2020 | https://indico.mpp.mpg.de/event/7328/ | -  |
| 15/04/2020 | https://indico.mpp.mpg.de/event/7300/ | -  |
| 06/04/2020 | https://indico.mpp.mpg.de/event/7285/ | Full stat. KLfitter vs Chi2 studies (Margherita) - Full stat. Chi2 studies (NIna) |
| 30/03/2020 | https://indico.mpp.mpg.de/event/7274/ | Sigma over RMT in chi2 studies |
| 23/03/2020 | https://indico.mpp.mpg.de/event/7259/ | Further chi2 studies (Margherita) - Initial chi2 studies  (Nina)|
| 18/03/2020 | https://indico.mpp.mpg.de/event/7248/ | KLfitter 408 vs 3210 thruth comparisons and initial chi2 studies  (Margherita) |
| 10/03/2020 | https://indico.mpp.mpg.de/event/7230/ | KLfitter efficiency/purity studies (Margherita) - KLfitter option definitions (Nina) |
| 25/02/2020 | https://indico.mpp.mpg.de/event/7214/ | KLFitter Time consumption, trigger|
| 18/02/2020 | https://indico.mpp.mpg.de/event/7205/ | KLFitter, b-jet investigations |
| 04/02/2020 | https://indico.mpp.mpg.de/event/7183/ | - |
| 20/01/2020 | https://indico.mpp.mpg.de/event/7152/ | - |
| 10/01/2020 | https://indico.mpp.mpg.de/event/7127/ | - |
| 04/11/2019 | https://indico.mpp.mpg.de/event/6987/ | - |
| 23/10/2019 | https://indico.mpp.mpg.de/event/6920/ | KLFitter, Multijet-Bkg |
| 02/10/2019 | https://indico.mpp.mpg.de/event/6895/ | Data-MC comparison |
| 25/09/2019 | https://indico.mpp.mpg.de/event/6885/ | Data-MC comparison |
| 10/09/2019 | https://indico.mpp.mpg.de/event/6846/ | Status update rehearsal talk for the Top Xsec meeting |
| 08/07/2019 | https://indico.mpp.mpg.de/event/6538/ | Status update rehearsal talk for the top Xsec meeting |
| 28/06/2019 | https://indico.mpp.mpg.de/event/6534/ | Cutflow plots |
| 31/05/2019 | https://indico.mpp.mpg.de/event/6508/ | mass resolution, leptonic ttbb talk, mistagging |
| 10/05/2019 | https://indico.mpp.mpg.de/event/6482/ | KLFitter, truth matching, purity |
| 03/05/2019 | https://indico.mpp.mpg.de/event/6477/ | KLFitter |
| 15/04/2019 | https://indico.mpp.mpg.de/event/6407/ | -- |
| 12/03/2019 | <a href="https://indico.mpp.mpg.de/event/6299/" target="_blank">https://indico.mpp.mpg.de/event/6353/</a>  | - |
| 18/02/2019 | <a href="https://indico.mpp.mpg.de/event/6299/" target="_blank">https://indico.mpp.mpg.de/event/6323/</a>  | Trigger comparison |
| 04/02/2019 | <a href="https://indico.mpp.mpg.de/event/6299/" target="_blank">https://indico.mpp.mpg.de/event/6299/</a> | Trigger comparison |
| 28/01/2019 | <a href="https://indico.mpp.mpg.de/event/6289/" target="_blank">https://indico.mpp.mpg.de/event/6289/</a> | Trigger efficiency |
| 18/01/2019 | <a href="https://indico.mpp.mpg.de/event/6269/" target="_blank">https://indico.mpp.mpg.de/event/6269/</a> | Trigger efficiency |
| 14/12/2018 | <a href="https://indico.mpp.mpg.de/event/6181/" target="_blank">https://indico.mpp.mpg.de/event/6181/</a> | Trigger efficiency |
| 27/11/2018 | <a href="https://indico.mpp.mpg.de/event/6141/" target="_blank">https://indico.mpp.mpg.de/event/6141/</a> | Update: Trigger, derivaions |
| 12/10/2018 | <a href="https://indico.mpp.mpg.de/event/6081/" target="_blank">https://indico.mpp.mpg.de/event/6081/</a> | Trigger, derivations |
| 03/08/2018 | <a href="https://indico.mpp.mpg.de/event/6005/" target="_blank">https://indico.mpp.mpg.de/event/6005/</a> | Summary talk Top X-Sec Meeting |
| 27/06/2018 | <a href="https://indico.mpp.mpg.de/event/5927/" target="_blank">https://indico.mpp.mpg.de/event/5820/</a> | - |
| 19/06/2018 | <a href="https://indico.mpp.mpg.de/event/5920/" target="_blank">https://indico.mpp.mpg.de/event/5920/</a> | Sven: Comparison Sherpa and Powhel, Interfacing Powhel with EvtGen +Pythia8 |
| 18/05/2018 | <a href="https://indico.mpp.mpg.de/event/5881/" target="_blank">https://indico.mpp.mpg.de/event/5881/</a> | Meeting with the PowHel people |
| 07/05/2018 | <a href="https://indico.mpp.mpg.de/event/5869/" target="_blank">https://indico.mpp.mpg.de/event/5869/</a> | Update: Powheg vs. Sherpa at central eta |
| 30/04/2018 | <a href="https://indico.mpp.mpg.de/event/5862/" target="_blank">https://indico.mpp.mpg.de/event/5862/</a> | Powheg vs. Sherpa at central eta |
| 16/04/2018 | <a href="https://indico.mpp.mpg.de/event/5835/" target="_blank">https://indico.mpp.mpg.de/event/5835/</a> | Sherpa, Sherpa vs. Powheg+Pythia8 |
| 27/03/2018 | <a href="https://indico.mpp.mpg.de/event/5811/" target="_blank">https://indico.mpp.mpg.de/event/5811/</a> | Sherpa Update |
| 20/03/2018 | <a href="https://indico.mpp.mpg.de/event/5835/" target="_blank">https://indico.mpp.mpg.de/event/5800</a> | Sherpa Update |
| 09/03/2018 | <a href="https://indico.mpp.mpg.de/event/5800/" target="_blank">https://indico.mpp.mpg.de/event/5782</a> | Plots with Sherpa Sample |
| 02/03/2018 | <a href="https://indico.mpp.mpg.de/event/5782/" target="_blank">https://indico.mpp.mpg.de/event/5767</a> | MC Generator record |

---++ Link to the MPP Twiki page

    * The link to the MPP Twiki page is: [[https://twiki.mpp.mpg.de/bin/view/Main/Barilla]]


-- Main.TeresaBarillari - 2021-05-17
This topic: Sandbox > WebPreferences > AllHadttbb
Topic revision: r33 - 2021-11-25 - TeresaBarillari
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