Recipes to get started

In terms of software the user should always follow the instructions from WorkBookWhichRelease.

Physics Data And Monte Carlo Validation (PdmV) group maintains some analysis recipe pages here. Especiale for run-II, next pages 2015, 2016, 2017 and 2018 collects useful information to be aware of when performing analysis or producing ntuples for analysis. Guidelines are collected on which release, detector conditions, and datasets. They also keep track of special filters or tools useful to remove atypical / problematic events

There are several recipes for you to use to clean up the event sample as recommended by the PVT group. For 2010 and 2011 this is a collation of the information presented on the Collisions2010Recipes and Collisions2011Analysis TWiki pages.

The following sample cleanups should be done for most 2010 and 2011 analyses, unless you know what you are doing to change them.

  • Beam background removal
    process.noscraping = cms.EDFilter("FilterOutScraping",
    applyfilter = cms.untracked.bool(True),
    debugOn = cms.untracked.bool(True),
    numtrack = cms.untracked.uint32(10),
    thresh = cms.untracked.double(0.25)
    )
  • Primary vertex requirement

    process.primaryVertexFilter = cms.EDFilter("GoodVertexFilter",
    vertexCollection = cms.InputTag('offlinePrimaryVertices'),
    minimumNDOF = cms.uint32(4) ,
    maxAbsZ = cms.double(24),
    maxd0 = cms.double(2)
    )
  • HBHE event-level noise filtering
    process.load('CommonTools/RecoAlgos/HBHENoiseFilter_cfi')
More specific recipes on data analysis can be found in the Collisions2010Analysis and Collisions2011Analysis TWiki pages.

-- JhovannyMejia - 2018-09-03

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Topic revision: r1 - 2018-09-03 - JhovannyMejia
 
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