1 / 10

Analysis of Minimum Bias Events and Energy Miss Resolution at 900 GeV and 14 TeV

This study investigates the performance of missing transverse energy (EtMiss) in minimum bias events using data from the University of Melbourne. We analyze 25,000 events at 14 TeV and 30,000 events at 900 GeV, employing various reconstruction algorithms in Athena. The results show that the resolution of missing energy components is closely related to the overall energy sum. Gaussians were fitted to the x and y components to measure the resolution, providing insights into contributions to EtMiss. Our findings indicate significant consistency across measurements from different algorithms.

sailor
Télécharger la présentation

Analysis of Minimum Bias Events and Energy Miss Resolution at 900 GeV and 14 TeV

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

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

  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_Final MET_FinalRef

  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

More Related