1 / 15

Local Performance of the Local Cathode Strip Chamber Trigger in a Muon Beam Test

This overview examines the local performance of the Cathode Strip Chamber (CSC) trigger within the Level-1 Trigger System during muon beam tests at the LHC. We provide an introduction to the LHC, focusing on the Compact Muon Solenoid (CMS) and its architecture. The role of muons as penetrating particles is discussed, along with the necessity of efficient trigger systems to filter data. Key findings include the effectiveness of the Andrey Pattern for achieving high efficiency with low ghost rates, utilizing both muon and pion data from the tests.

lang
Télécharger la présentation

Local Performance of the Local Cathode Strip Chamber Trigger in a Muon Beam Test

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. Local Performance of the Local Cathode Strip Chamber Trigger in a Muon Beam Test

  2. Overview: • Introduction to LHC • Overview of CMS • Overview of Trigger Architecture • Overview of Cathode Strip Chamber (CSC) • Level-1 Trigger System • Plots for efficiency • Conclusion

  3. LHC • 14 TeV center of mass energy • 27 km circumference

  4. CMS (Compact Muon Solenoid)

  5. CMS What is a muon? Muons are point particles identical to electrons except over 200 times more massive (105.2 MeV) The illustration shows the smaller orbit for muons in a hydrogynic atom due to their mass

  6. CMS Why Muons? • Muons are penetrating. • Electrons are too light to make it through absorbers • Taus are too unstable to make it through absorbers • Hadrons interact strongly with matter

  7. Trigger Architecture • Need Trigger System to filter out data

  8. Cathode Strip Chambers (CSC) • Provide 3-D tracks of charged particles called Local Charge Tracks (LCT’s)

  9. Level-1 Trigger System

  10. Level-1 Trigger System • ALCT and CLCT find 2-D tracks • TMB receives and correlates these tracks to make a 3-D Correlated LCT • MPC receives up to 18 LCT’s from the different TMB’s and selects the best 3 • SR/SP receives the 3 LCT’s from the TMB

  11. 2004 Test Beam • 100GeV muons for asynchronous run • 100GeV pions for synchronous run (along with muons)

  12. Angle vs. Trigger Mode

  13. Pattern vs. Trigger Mode

  14. NPH Pattern vs. Trigger Mode (for Andrey Pattern)

  15. Conclusions • Andrey Pattern does the best for higher nph patterns • Keeps Efficiency high and ghost rates low

More Related