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EtMiss with Minimum Bias N. Davidson A. Phan G. Atkinson The University of Melbourne.

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Presentation on theme: "EtMiss with Minimum Bias N. Davidson A. Phan G. Atkinson The University of Melbourne."— Presentation transcript:

1 EtMiss with Minimum Bias N. Davidson A. Phan G. Atkinson The University of Melbourne

2 EtMiss In Minimum Bias 14TeV Sample:  AANT produced by N. Kanaya.  CSC sample 005001. RDOs produced with Athena 11.0.42  Reconstructed with Athena 12.0.5.  25,000 events 900GeV Sample:  CSC sample 005005. Athena 11.0.5  30,000 events. (9 x 10^-8 pb^-1 integrated luminosity)

3 Ex and Ey components Gaussians were fit to the x and y components to measure the resolution. MET_Final vs Object:

4 EtMiss Range Very little true missing energy in minimum bias events MET_Final, MET_RefFinal and Object MET give similar results.

5 Components of EtMiss for Min Bias Useful to see what contributes to EtMiss for minbias. Corrected Topoclusters (for Final), Cells outside of objects (for RefFinal).

6 EtSum Range Up to 300GeV? Different Algorithms give comparable results

7 Ex(y) Resolution vs. EtSum Results similar to TDR for fit to :  sigma = p0 *sqrt(EtSum) MET_FinalRef MET_Final

8 EtMiss at 900GeV Resolution of Ex(y) components:  Fit component to gaussian gives sigma: 1.911  Fit to const*sqrt(EtSum) gives const: 0.4874+- 0.0021

9 EtMiss at 900GeV EtMiss Range and Performance

10 EtMiss at 900GeV EtSum Range

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