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Efficiency Measurements at the CMS High Level Trigger

Efficiency Measurements at the CMS High Level Trigger. Andrew Bower – Rose Hulman Institute of Technology Advisors: Dr. Pietro Govoni & Andrea Benaglia University of Milano- Bicocca. Overview. CMS Experiment and Goals High Level Trigger and Efficiency Measurements Future Work.

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Efficiency Measurements at the CMS High Level Trigger

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  1. Efficiency Measurements at the CMS High Level Trigger Andrew Bower – Rose Hulman Institute of Technology Advisors: Dr. Pietro Govoni & Andrea Benaglia University of Milano-Bicocca

  2. Overview • CMS Experiment and Goals • High Level Trigger and Efficiency Measurements • Future Work

  3. Compact Muon Solenoid (CMS) • General Purpose Detector • Search for Higgs Boson, Supersymmetry, Extra Dimensions…

  4. CMS Trigger • Level-1 Trigger (L1T) – Hardware – 40 MHz to 100 kHz • High Level Trigger (HLT) – loose software reconstruction – 100 kHz to ~100 Hz

  5. Trigger Efficiencies • Measurements for Vector Boson Fusion (VBF) Higgs Analysis • Efficiency measurements will be used to make the offline selection cuts as loose as possible

  6. Current Work Denominator – events pass ref. trigger and offline selection Numerator – events pass denominator and HLT

  7. Future Work • Analysis of triggers for VBF Higgs analysis • Analysis of the current offline cuts

  8. Questions?

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