1 / 10

Muon Identification: Purity and Efficiency Analysis with Erik's Algorithm

This presentation focuses on the purity and efficiency of muon identification using Erik's previously established algorithms. An analysis of 6k Z’→bb events demonstrates the effectiveness of the parameters including distance less than 200μm and angle less than 0.1. The study compares matched muon energy distributions and cosθ distributions, assessing values where energy is above 6 GeV and |cosθ| is below 0.99. Results show differences in efficiency and purity metrics between Jacopo's and Erik's definitions, highlighting challenges in low-energy muon identification.

nissim-pugh
Télécharger la présentation

Muon Identification: Purity and Efficiency Analysis with Erik's Algorithm

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. Jacopo Nardulli Muon identification purity/efficiency with lots of help from Erik

  2. Introduction • Purity and efficiency on 6k Z’ bb events from Erik’s sample using algorithm previously explained on WG6 meeting, see: talk • In reality half of the statistics because I only took the μ-

  3. Introduction • To compare with Erik’s plots. • I use Erik’s reconstruction algorithm with Pandora Rev 828 and with: • Distance < 200μm • Θ < 0.1 • Only 7 layers are used. • Pandora does not see 1st layer in barrel and plug in the endcap

  4. Matched Muons energy distributions

  5. Matched Muonscosθ distribution

  6. Efficiency and purity • With E > 6 GeV and |cosθ| < 0.99

  7. Efficiency and purity • With E > 6 GeV and |cosθ| < 0.99, from Erik

  8. Definition differences MC μ Erik MC μ Jacopo • Pfo has to have hits in > 5 layers  take corresponding MC μ • MC μ produced inside a sphere of radious X from interaction point  I have less MC μ of low energy

  9. Efficiency and purity Compare

  10. Efficiency and purity Compare

More Related