Cafe Analysis Tutorial
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Cafe Analysis Tutorial
Gavin Hesketh ghesketh@fnal.gov
Northeastern University
thManchester Workshop, 25 August 2006.
Wiki Page: https://plone4.fnal.gov/P1/D0Wiki/caf/ManchesterCafeTutorial
What you should know already
What I'm going to cover
Data Analysis
Monte Carlo Analysis
Other stuff
1 What you should know already
This is not a general introduction to cafe!
For that, see:
Reiner's tutorial in Vancouver (linked from the CSG web page)
Slava's talk on caf_utils (also linked from the CSG page)
So, you should already know roughly:
what cafe is
cafe structure (processors)
setting up a config file
This tutorial goes through a basic physics analysis using cafe.
2 Aim
A working example of a physics analysis:
The standard cafe tools:
data quality
standard object selection
applying weights to Monte Carlo
Developing a processor to do your own analysis.
There is generally more than one way to do all of this!
this is a combination of the standard tools and my analysis
consider it a working example, not the definitive guide
there are other analysis examples out there (top_cafe, wzmuxsec).
There is a tutorial wiki page (under the CAF section)
3 repository for additional knowledge / tips. Format
All the code is in a cvs package:
manchester_cafe_tutorial
Go to the tutorial wiki page to find the latest version, and how to set it up.
D0 wiki > CAF > Manchester Cafe Tutorial
https://plone4.fnal.gov/P1/D0Wiki/caf ...
Voir
Gavin Hesketh ghesketh@fnal.gov
Northeastern University
thManchester Workshop, 25 August 2006.
Wiki Page: https://plone4.fnal.gov/P1/D0Wiki/caf/ManchesterCafeTutorial
What you should know already
What I'm going to cover
Data Analysis
Monte Carlo Analysis
Other stuff
1 What you should know already
This is not a general introduction to cafe!
For that, see:
Reiner's tutorial in Vancouver (linked from the CSG web page)
Slava's talk on caf_utils (also linked from the CSG page)
So, you should already know roughly:
what cafe is
cafe structure (processors)
setting up a config file
This tutorial goes through a basic physics analysis using cafe.
2 Aim
A working example of a physics analysis:
The standard cafe tools:
data quality
standard object selection
applying weights to Monte Carlo
Developing a processor to do your own analysis.
There is generally more than one way to do all of this!
this is a combination of the standard tools and my analysis
consider it a working example, not the definitive guide
there are other analysis examples out there (top_cafe, wzmuxsec).
There is a tutorial wiki page (under the CAF section)
3 repository for additional knowledge / tips. Format
All the code is in a cvs package:
manchester_cafe_tutorial
Go to the tutorial wiki page to find the latest version, and how to set it up.
D0 wiki > CAF > Manchester Cafe Tutorial
https://plone4.fnal.gov/P1/D0Wiki/caf ...
Gavin Heskethghesketh@fnal.gov Northeastern University Manchester Workshop, 25thAugust 2006.
l
Wiki Page: https://plone4.fnal.gov/P1/D0Wiki/caf/ManchesterCafeTutorial
What you should know already -- What I'm going to cover Data Analysis -- Monte Carlo Analysis - Other stuff
This is not a general introduction to cafe! For that, see: - Reiner's tutorial in Vancouver (linked from the CSG web page) - Slava's talk on caf_utils (also linked from the CSG page)
So, you should already know roughly: - what cafe is - cafe structure (processors) - setting up a config file
This tutorial goes through a basic physics analysis using cafe.
A working example of a physics analysis: - The standard cafe tools: data quality -- standard object selection - applying weights to Monte Carlo - Developing a processor to do your own analysis.
There is generally more than one way to do all of this! - this is a combination of the standard tools and my analysis - consider it a working example, not the definitive guide - there are other analysis examples out there (top_cafe, wzmuxsec).
There is a tutorial wiki page (under the CAF section) - repository for additional knowledge / tips.
All the code is in a cvs package: _ _ - manchester cafe tutorial
These slides are intended as a reference - you'll probably learn most by playing with the code and configs! - for example, try: - run the analysis as it is - changing some cuts - add some plots to the example processor - run the analysis with another trigger.
Rest of this tutorial
- setting up a working directory - how to find data and MC - a basic cafe analysis: Inclusive Z->mumu cross section - data quality selection duplicate event removal -- trigger selection (data) - physics object selection - some further selection & analysis - applying reco scale factors (MC) - applying trigger efficiencies (MC) - other MC tools - submitting jobs - getting the luminosity other things out there -
To simplify this, I've made two setup scripts: - on the tutorial wiki page (under CAF) https://plone4.fnal.gov/P1/D0Wiki/caf/ManchesterCafeTutorial - these were up to date at the time of writing!
kage/Pacmls.htna.fd0w-Ruv/gol.cisyhP2nfac/sc/s
setup_on h (.csh) ce.s setup.sh (.csh)
Run once
setup caf_tools -t
d0setwa
eve ni ns wen yrllheD=yNK_SHAREuR_SRTDIUBbish$Sn/ropxIL tP$:ReHTASRT_TH=$t PAxporXE/TOCTNTA_ERPVI pIIun0R Dupet se00.80.81
manchester cafe tutorial _ _
Contains: - these slides! (doc/tutorial.pdf & .odp) - example config files (config and config/common directories) example processor (src/Ana.cpp & _ _tutoria a.hpp) - an manchester cafe l/An - example job submission commands (doc j _ .sh) / ob sub - some skimmed data & mc (skim/) - only~100 events each - example for the lumi calculation (doc/lumi.txt & runrange.list)
Note on setup_once: - this will (quickly) become obsolete as cafe evolves.
Common tools developed to make analysis as simple as possible - but I'm afraid you'll have to do some work yourself... - configuring the common tools - writing your final analysis processor
Approach I take: - different trigger versions, detector performance... - easiest way to handle this is to split your data set - develop config files for each trigger / period example is structured in a way to minimise duplication. -
Reminder.. these are my methods, not THE method...
How to find Data and MC
From the CSG web page: http://www-d0.fnal.gov/Run2Physics/cs/skimming/fixPass2p170903.html
Pass 2 and Pass 3 data – we need both! For data, we'll use two SAM definitions: CSG_ _ highpt_ ASS3_p17.09.03 CAF 2MU P CSG_CAF_2MUhighpt_PASS2_p17.09.01
For MC: http://d0-france.in2p3.fr/WORKING_GROUPS/MONTECARLO/Catalog/current/section_summary.php We'll use p17.09.06 production MC, request ID 33670. Make sure you use MCv3! Corresponding SAM definition: _ _ CSG CAF MCv3-33670
A Basic Cafe Analysis Part 1: Data
For testing, I've skimmed some data and MC. - stored in the tutorial package.
We will start with a basic config file, and build up from there. - The setup_once script links the config files to your area - If not, they are in manchester cafe tutorial/configs _ _
Start with tutorial_one.config - runs the Stat processor – keeps track of global weights. - run range selection - data quality selection - trigger selection muon selection -Run with: cafe tutorial_ fig one.con
