Difference: JetEtmissApproved2012EtmissWithPileup ( vs. 1)

Revision 12012-06-29 - TancrediCarli

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Etmiss performance under high pile conditions in 2012 data

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[Etmiss resolution vs Npv]

Resolution of x and y missing ET components as a function of the number of primary vertices before and after pile-up suppression for data and MC in events with Z bosons produced without jets above 20 GeV in pT. The pile-up suppression is based on the ratio of the sum pT of the tracks associated to the primary vertex and all tracks not associated to reconstructed objects. The vertices are reconstructed with tighter requirements on the number of hits on the tracks than in the 2011 reconstruction.

eps file gif file

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[Etmiss resolution vs SumET]

Resolution of x and y missing ET components as a function of the scalar sum of transverse energies of all the calorimeter energy depositions and muons(SumET) before and after pile-up suppression for data and MC. The SumET on the abscissa is not corrected for pile-up suppression.

eps file gif file

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[Mean Etmiss resolution PtZ ]

Mean value of the projection of EtMiss onto the transverse direction of the Z boson as a function of the transverse momentum of the Z boson before and after pile-up suppression for data and MC. The mean value of the projection of EtMiss onto the longitudinal axis is a measure of the EtMiss scale and this axis is sensitive to the balance between the leptons and the hadronic recoil.

eps file gif file

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-- TancrediCarli - 29-Jun-2012

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  • fig_01.eps: resolution vs Npv before and after pile-up suppression

  • resolution vs Npv before and after pile-up suppression:
    fig_01.png

  • fig_02.eps: Resolution vs sum of transverse energies after pile-up suppression

  • Resolution vs sum of transverse energies after pile-up suppression:
    fig_02.png

  • mean Et vs PtZ:
    fig_03.png

META FILEATTACHMENT attachment="fig_01.eps" attr="" comment="resolution vs Npv before and after pile-up suppression" date="1340964011" name="fig_01.eps" path="fig_01.eps" size="15924" user="tcarli" version="1"
META FILEATTACHMENT attachment="fig_01.png" attr="" comment="resolution vs Npv before and after pile-up suppression" date="1340964043" name="fig_01.png" path="fig_01.png" size="21283" user="tcarli" version="1"
META FILEATTACHMENT attachment="fig_02.eps" attr="" comment="Resolution vs sum of transverse energies after pile-up suppression" date="1340964116" name="fig_02.eps" path="fig_02.eps" size="14740" user="tcarli" version="1"
META FILEATTACHMENT attachment="fig_02.png" attr="" comment="Resolution vs sum of transverse energies after pile-up suppression" date="1340964135" name="fig_02.png" path="fig_02.png" size="24399" user="tcarli" version="1"
META FILEATTACHMENT attachment="fig_03.eps" attr="" comment="mean Et vs PtZ" date="1340964196" name="fig_03.eps" path="fig_03.eps" size="18670" user="tcarli" version="1"
META FILEATTACHMENT attachment="fig_03.png" attr="" comment="mean Et vs PtZ" date="1340964218" name="fig_03.png" path="fig_03.png" size="22087" user="tcarli" version="1"
 
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