Sliding window cluster corrections for 10.0.1

Sliding window Sliding window cluster corrections cluster corrections

for 10.0.1for 10.0.1

S.Snyder (BNL),S.Paganis (Wisconsin)S.Snyder (BNL),S.Paganis (Wisconsin)

(with the help of many LAr people)(with the help of many LAr people)

LAr Performance MeetingLAr Performance Meeting

CERN, 16-Mar-05CERN, 16-Mar-05

16 Mar 05 Sliding Window Cluster Corrections

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RemindersReminders

10.0.0:10.0.0: We have new cluster We have new cluster corrections but old longitudinal weightscorrections but old longitudinal weights

10.0.1:10.0.1: We want to add new cluster We want to add new cluster dependent longitudinal weightsdependent longitudinal weights

Linearity is good to 2ppm from 10GeV to 1TeV Resolution improves

Presently:Presently: Weights are ONLY eta Weights are ONLY eta dependent and Energy independentdependent and Energy independent


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ConfusionConfusion

We have samples of DC2 electrons (8.0.x) We have samples of DC2 electrons (8.0.x) We have e samples for 9.0.x Final Layout We have e samples for 9.0.x Final Layout We have e samples for 9.0.4 Rome LayoutWe have e samples for 9.0.4 Rome Layout

One must be careful with turn-on of charge collection effects and change in the Sampling Fractions in the EndCap.

Bottomline: Bottomline: 9.0.4 electrons have consistent EndCap simulation while

9.0.x with x<4 don’t. DC2 and 9.0.x electrons have consistent Barrel

simulation


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10 GeVMean: 0.0021Sigma: 4.1%TDR: 2.74%




9.0.x Final Layout Electrons: 9.0.x Final Layout Electrons: =0.3, new corrections + new weights, 3x7=0.3, new corrections + new weights, 3x7


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Reminder: TDR result for Reminder: TDR result for 3x73x7


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DC2 electrons with new corrections + new weights running 10.0.0 (K.Benslama)DC2 electrons with new corrections + new weights running 10.0.0 (K.Benslama)

500 GeV5x5DC2 electrons

1 TeV5x5DC2 electrons


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DC2 electrons with new corrections + DC2 electrons with new corrections + new weights running 10.0.0 new weights running 10.0.0 (K.Benslama) (K.Benslama)

dE/EdE/E

oldold/E/E

oldolddE/EdE/E

newnew/E/E

newnew20GeV20GeV -1%-1% 3.4%3.4% -0.20%-0.20% 3.5%3.5%

100Ge100GeVV

0.2%0.2% 1.4%1.4% +0.08+0.08%%

1.3%1.3%

500Ge500GeVV

0.2%0.2% 0.8%0.8% +0.1%+0.1% 0.73%0.73%

1TeV1TeV 0.2%0.2% 0.86%0.86% -0.06%-0.06% 0.7%0.7%

Barrel Only: integrated over eta, 5x5

Improved Linearity Improved Resolution


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Rome 904 Electrons with new Rome 904 Electrons with new corrections and new weights: corrections and new weights: 100GeV and 200GeV100GeV and 200GeV

100 GeV=0.35x5Mean: 0.004Sigma: 1.0%

200 GeV=0.35x5Mean: 0.0036Sigma: 0.08%

The Rome electrons are slightly overcorrected +0.4%

Rome Electrons produced by Neng Xu and Luis Flores (Wisconsin)


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Rome 904 Electrons with new Rome 904 Electrons with new corrections and new weights: corrections and new weights: 5GeV 5GeV electrons at electrons at =0.3=0.3

5 GeV=0.35x5Mean: 0.015Sigma: 8%

Reasonable results all the way down to 5GeV!We rediscover the DC1 result that weights work from a few GeV to the TeV scale.


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EndCap:EndCap: Rome 904 Electrons with new Rome 904 Electrons with new corrections and new weights + rec10.0.0 corrections and new weights + rec10.0.0 (Karina Loureiro)(Karina Loureiro)

Rome Electrons produced by Neng Xu and Luis Flores (Wisconsin)

100 GeV=2.03755x5(no Presampler)


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SummarySummary

Barrel:Barrel: We have new Long. Weights We have new Long. Weights which give ppm linearity from ~10GeV which give ppm linearity from ~10GeV to TeV and improved resolution.to TeV and improved resolution.

EndCap:EndCap: We have new L.Weights which We have new L.Weights which also seem to be performing fine, also seem to be performing fine, although we have done less validation although we have done less validation than in the barrel.than in the barrel.

Implementation in 10.0.1 ? (for 5x5, Implementation in 10.0.1 ? (for 5x5, 3x5 and 3x7 sizes)3x5 and 3x7 sizes)

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Sliding window cluster corrections for 10.0.1