Getting Started with xAODs

This uses xAODAnaHelpers as a base class.

Logon to the Tier3. Make a working directory. Go there. Need to setup some software called ROOTCore. This is only needed once, you can set this up with:

setupATLAS
rcSetup Base,2.0.23

Download the relevant packages

svn co svn+ssh://svn.cern.ch/reps/atlasinst/Institutes/UChicago/xAODAnaHelpers/trunk xAODAnaHelpers
svn co svn+ssh://svn.cern.ch/reps/atlasinst/Institutes/UChicago/johnda/EventLoopAlgs/XhhExample/trunk  XhhExample

Configure RootCore

rc find_packages
rc compile

And run with: runXhh

(One annoying thing is that if you want to run again you have to remove the output directory that was created by the first job first, or else you will get a crash.)

Other commands that ive sometimes used: rc compile_pkg XhhExample rc clean rc [tab complete]

Tutorials: SoftwareTutorialxAODAnalysisInROOT

To set up Fax (Needed when the files are on the grid):

setupATLAS
localSetupFAX
voms-proxy-init -voms atlas
rcSetup

Using iPlot

iPtack

iPlotNotes

Using pyAMI

pyAMI is a client for AMI written in python.

On lxplus:

Setup AMI: source /afs/cern.ch/atlas/software/tools/pyAMI/setup.sh Authenicate voms-proxy-init -voms atlas Search eg: ami list datasets mc14_13%

Slides From ATLAS weekly The official pyAMI documentation here

Xhh Samples

(Requested these be transferred to UC)

mc14_13TeV.203496.MadGraphPythia8_AU2MSTW2008LO_RSG_hh_bbbb_m500.merge.AOD.e3219_s1982_s2008_r5787_r5853/
mc14_13TeV.203497.MadGraphPythia8_AU2MSTW2008LO_RSG_hh_bbbb_m1000.merge.AOD.e3219_s1982_s2008_r5787_r5853/
mc14_13TeV.203498.MadGraphPythia8_AU2MSTW2008LO_RSG_hh_bbbb_m1500.merge.AOD.e3219_s1982_s2008_r5787_r5853/
mc14_13TeV.203499.MadGraphPythia8_AU2MSTW2008LO_RSG_hh_bbbb_m2000.merge.AOD.e3219_s1982_s2008_r5787_r5853/
mc14_13TeV.203403.MadGraphPythia8_AU2MSTW2008LO_RSG_hh_bbbb_m2500.merge.AOD.e3219_s1982_s2008_r5787_r5853/

Using Rates Estimator

RateEstimator info: https://twiki.cern.ch/twiki/bin/view/Atlas/RateEstimator

Multi-jets

Test Derivations

Samples located at /share/t3data3/johnda/samples

Run Derivation: asetup AtlasDerivation,19.1.4.6,here Reco_tf.py --inputAODFile inputXAOD.pool.root --outputDAODFile output.pool.root --reductionConf EXOT1