Cluster Splitting

The cluster splitting algorithm is included in the official release since CMSSW_7_0_0_pre11.

How to use it

CMSSW_7_1_X

The cluster splitting is now working with the new tracking.

waiting for the bug fixes are included in the production release, you can check them out from the branch 71X_SLC6 or 71X_SLC5 in the repository https://github.com/taroni/cmssw.git

The increase in tracking efficiency for small dR and high p_T is well shown in the following plots

efficPt.png efficdR.png

CMSSW_7_0_0_pre8

create your working area:

scramv1 p CMSSW CMSSW_7_0_0_pre8

cd CMSSW_7_0_0_pre8/src

add the packages:

git cms-addpkg RecoLocalTracker/SiStripRecHitConverter

git cms-addpkg RecoLocalTracker/SubCollectionProducers

scramv1 b -j8

copy in your working directory the following files:

new_splitter_tracking_setup_700_cff.py.txt and run_splitting_700_data.py.txt

run it!

cmsRun run_splitting_700_data.py

CMSSW_6_2_0

create your working area:

scramv1 p CMSSW CMSSW_6_2_0

cd CMSSW_6_2_0/src

add the packages:

addpkg RecoLocalTracker/SiStripRecHitConverter

addpkg RecoLocalTracker/SubCollectionProducers

scramv1 b -j8

copy in your working directory the following files:

new_splitter_tracking_setup_cff.py.txt and run_splitting_data.py.txt

run it!

cmsRun run_splitting_data.py

Alternate implementation of strip splitting based on MC truth

SWGuideStripClusterMCtruth

Old instructions:

Here are the instructions for cluster splitting: http://www.pha.jhu.edu/~ggiurgiu/CMS/TMPL_SPLT_INSTR/template_splitting_instructions.txt

-- GavrilGiurgiu - 10-Jan-2012

Topic attachments
I Attachment History Action Size Date Who Comment
PNGpng efficPt.png r1 manage 13.2 K 2014-03-06 - 15:34 SilviaTaroni efficiency vs pT
PNGpng efficdR.png r1 manage 10.3 K 2014-03-06 - 15:33 SilviaTaroni efficiency vs dR
Texttxt new_splitter_tracking_setup_cff.py.txt r1 manage 8.0 K 2013-11-12 - 18:29 SilviaTaroni  
Texttxt run_simsplit.py.txt r1 manage 9.3 K 2013-12-10 - 14:44 SilviaTaroni run splitting using simulated hits
Texttxt run_splitting.py.txt r1 manage 10.2 K 2013-09-17 - 18:50 MukundVarma Cluster splitting instructions and scripts by Gavril
Texttxt run_splitting_700_data.py.txt r1 manage 9.5 K 2013-11-14 - 20:33 SilviaTaroni  
Texttxt run_splitting_data.py.txt r1 manage 8.3 K 2013-11-12 - 18:28 SilviaTaroni  
Texttxt splitter_tracking_setup_700_cff.py.txt r1 manage 8.3 K 2013-11-14 - 20:34 SilviaTaroni  
Texttxt splitter_tracking_setup_cff.py.txt r1 manage 6.6 K 2013-09-17 - 18:50 MukundVarma Cluster splitting instructions and scripts by Gavril
Texttxt template_splitting_instructions.txt r1 manage 5.1 K 2013-09-17 - 18:50 MukundVarma Cluster splitting instructions and scripts by Gavril
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Topic revision: r8 - 2015-09-25 - WilliamFord
 
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