Difference: LowPtVertices (2 vs. 3)

Revision 32006-11-13 - FerencSikler

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Vertices with low pT tracks

Minimum bias Pythia p+p events at 14 TeV. Generated, simulated and reconstructed with CMSSW_1_2_0_pre1 with special code for low pT reconstruction.

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Vertices with low pT tracks

 
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Dijet

Two jet Pythia events (produced with PythiaZ700dijets.cfi). Generated, simulated and reconstructed with CMSSW_1_2_0_pre1 with special code for low pT reconstruction. The distribution of number of found vertices (NVertices) with several NTrkMin settings, keeping ZSeparation=0.05cm and PtMin=0. While with NTrkMin=5 there are a lot of events with multiple vertices, with NTrkMin=10 their frequency is below 1%.

dijet.png

Minimum bias

Minimum bias Pythia p+p events at 14 TeV. Generated, simulated and reconstructed with CMSSW_1_2_0_pre1 with special code for low pT reconstruction.

 

Vertex resolution

Distribution of vertex residuals with the standard setting (PtMin=1GeV/c) and the low pT setting (PtMin=0).
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META FILEATTACHMENT attr="h" autoattached="1" comment="" date="1163358659" name="vertices.png" path="vertices.png" size="6651" user="Main.FerencSikler" version="1"
META FILEATTACHMENT attr="h" autoattached="1" comment="" date="1163358918" name="resolution.png" path="resolution.png" size="4461" user="Main.FerencSikler" version="1"
META FILEATTACHMENT attr="h" autoattached="1" comment="" date="1163358738" name="vertices_b.png" path="vertices_b.png" size="5988" user="Main.FerencSikler" version="1"
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META FILEATTACHMENT attr="h" autoattached="1" comment="" date="1163449055" name="dijet.png" path="dijet.png" size="4218" user="Main.FerencSikler" version="1"
 
META FILEATTACHMENT attr="h" autoattached="1" comment="" date="1163358685" name="vertices_a.png" path="vertices_a.png" size="6711" user="Main.FerencSikler" version="1"
META FILEATTACHMENT attr="h" autoattached="1" comment="" date="1163358646" name="multidep.png" path="multidep.png" size="6480" user="Main.FerencSikler" version="2"
META FILEATTACHMENT attr="h" autoattached="1" comment="" date="1163358698" name="vertices_c.png" path="vertices_c.png" size="5898" user="Main.FerencSikler" version="1"
 
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