Top stuff

• CMS top twiki page
• Samples overview

• Running on CMSSW 1_6_12 fast sim soup

Meetings/presentations

• CMG Top meetings (updated 2008-10-20)
  • 02 October 2008
  • 28 August 2008
  • 14 August 2008
  • 31 July 2008
• (all CMG meetings)

Datasets

• 2008-02-20 Summer08 'redigi' samples (see the status here) of interest are the following:

  /TTJets-madgraph/Summer08_IDEAL_V11_redigi_v10/GEN-SIM-RECO

  /WJets-madgraph/Summer08_IDEAL_V11_redigi_v1/GEN-SIM-RECO

  /ZJets-madgraph/Summer08_IDEAL_V11_redigi_v1/GEN-SIM-RECO

  /InclusiveMuPt15/Summer08_IDEAL_V11_redigi_v1/GEN-SIM-RECO

  /InclusiveMu5Pt50/Summer08_IDEAL_V11_redigi_v1/GEN-SIM-RECO

  /InclusiveMu5Pt150/Summer08_IDEAL_V11_redigi_v1/GEN-SIM-RECO

  /InclusiveMu5Pt250/Summer08_IDEAL_V11_redigi_v1/GEN-SIM-RECO

  /InclusiveMu5Pt350/Summer08_IDEAL_V11_redigi_v1/GEN-SIM-RECO

  /InclusivePPmuX/Summer08_IDEAL_V11_redigi_v1/GEN-SIM-RECO

• 2008-02-18: Status of the Winter09 (fastsim) samples can be found here. Among the interesting ones (for us) are the following:

  /TTbar-madgraph/Winter09_IDEAL_V11_FastSim_v1/GEN-SIM-DIGI-RECO

  /Wjets-madgraph/Winter09_IDEAL_V11_FastSim_v1/GEN-SIM-DIGI-RECO

  /Zjets-madgraph/Winter09_IDEAL_V11_FastSim_v1/GEN-SIM-DIGI-RECO

  /QCDenriched ?

These seem to have been made with CMSSW_2_2_3.

• 2008-02-06: There is a list of recommended datasets here and here. See also Silvano Tosi's mail here. Note that these are CMSSW_2_1_x data samples and thus won't work with the new particle flow.
• old: See also an overview on the TOP quark CSA07 page (includes backgrounds) and Steven Lowette's presentation at the top quark meeting of January 8, 2008.

Dimitrios' samples

• see here

CSA08

(seems to include full Simulation SM Production for Physics at 10 TeV)

• CSA08 page
• CSA08 datasets for the top group (seems not to contain any signal at the time of writing).
• Datasets with CSA08 and tt in their name.

• CSA08 detector performance samples (looks like there is no top though)

Other

• example list of samples for the electron channel (CSA07, hypernews login required)
• The 500M Spring Fast Sim SM Production for Physics

Quantities of interest in the files

• how to access generator level information, see list of known process ids.
• paths and operators in CMSSW config files
• AOD data types description
• Accessing generated particle information: e.g. do Events->Scan("genParticleCandidates.data().pdgId()")
• Generator information in AOD

Software

• Talk by Rick Wilkinson on CMSSW configuration files
• TQAF for CMSSW_1_6_12 (see also the announcement mail).
• cvs co -r CMSSW_1_6_12 TopQuarkAnalysis/Examples/test/TopObjectReco_fromAOD_fast.cfg, copy and edit this file (change input and output files)
• CMSSW lxr
• edmConfigTree is e.g. in ${CMSSW_RELEASE_BASE}/src/FWCore/ParameterSet/bin/edmConfigTree

Signal

• ttbar_inclusive_TopRex (example file: /castor/cern.ch/cms/store/mc/2007/6/4/Spring07-ttbar_inclusive_TopRex-1822/0012/04647B9F-BD13-DC11-9C42-001731A28EDB.root)
• tt0j
• tt1j
• tt2j
• tt3j
• tt4j

Example root queries:

Events->Scan("genEventProcID")

Events->Draw("fabs(siStripElectrons.pt())","fabs(siStripElectrons.pt()) < 1000")

Mails

• Problems with CSA07 electrons: https://hypernews.cern.ch/HyperNews/CMS/get/top/109.html

Meetings

• QCD/EWK/TOP and Top quark analysis framework meetings

Running CMSSW on ubuntu

• see here

Misc.

• event loop in python
• python startup:

  import ROOT ; from PhysicsTools.PythonAnalysis.cmstools import * ; ROOT.gSystem.Load("libFWCoreFWLite.so") ; ROOT.AutoLibraryLoader.enable()

• presentation on fwlite in python by B.Hegner

• to get ipython to work (on ubuntu):

   export PYTHONPATH=$PYTHONPATH:/usr/share/python-support/ipython
   python $(which ipython)

Python examples

events = EventTree("top-chowder/out-tqaf.root")
for event in events: break

pr = event.getProduct('recoCaloJets_fastjet6CaloJets__PROD.obj')
for i in pr:
  print i.pt()

Documents

• top software examples (seems to have disappeared ??)
• CDF II Top physics results
• D0 Top physics results
• ptdr2_final_top.pdf: Top chapter of the CMS PTDR printed version (including references)
• Top Quark fast simulation effort

Other top analyses

• CMS 10/pb semileptonic (to muon) analysis: twiki page, PAS, analysis note (looks like there is no CMS note as of 2008-08-09), my personal notes

Misc.

• example by Jia Fu Low using PAT (and the top muon skim) (added 2008-09-24)
• TopQuarkAnalysis/Examples/test/TtEventDummyAnalysis.cfg for an example on how to perform a standard analysis and assigning input tags ('which object to use') (added 2008-09-24)
• TopQuarkAnalysis/TopEventProducers/data/TtSemiObjectSelection.cff note that this file is 'dead' (in CVS), this is pre-pat (added 2008-09-24)
• Sphericity