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Presentation of results

Presentation of results. Padova (ITA) Institute March 20th 2013 CMS exercise. W e did …. We have two columns in xls file: electron and muon. Lepton ID with detectors Charge determination GOAL is particle ID through leptonic decays. Questions: Which detector did you look?

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Presentation of results

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  1. Presentation of results Padova (ITA) Institute March 20th 2013 CMS exercise Masterclass 2013

  2. Wedid… We have two columns in xls file: electron and muon Lepton ID with detectors Charge determination GOAL is particle ID through leptonic decays Questions: Which detector did you look? How did you measure the particle charge? Masterclass 2013

  3. Wedid… We have three columns in xls file: +, -, not known Question: Which quantities are conserved? Masterclass 2013

  4. Wedid… We have three columns in xls file: Z, ZZ, mass Question: Describe the ZZ decays with only charged leptons. Finally, we have the column called zoo: … … Question: What is it? Masterclass 2013

  5. Padova results: numbers Masterclass 2013

  6. Padova results: ratios Ratio e/μ Ratio W+/W- Expected value [ratio e/μ] = 1.0 Expected value [ratio W+/W-] = 1.4 Measure [ratio e/μ] = (1.05 ± 0.06) Measure [ratio W+/W-] = (1.31 ± 0.09) Question: Why the ratio e/μ is 1.0? Question: Why is W+ more frequent than W-? Masterclass 2013

  7. Lione results: mass plot Massplot Lione (March 18 th) Masterclass 2013

  8. Torino results: mass plot Massplot Torino (March 18 th) Masterclass 2013

  9. Padova results: Z mass plot Massplot Padova (March 20 th) From Particle Data Group Mass (Z) = (91.1876 ± 0.0021) GeV MZZ ≈ 126 GeV Higgs candidates Masterclass 2013

  10. Padova results: Z mass plot Massplot Padova (March 20 th) MZZ ≈ 126 GeV Higgs candidates Masterclass 2013

  11. Padova results: Higgscandidates Your Higgs candidate CMS official Higgs candidate Masterclass 2013

  12. Masterclasslinks Pagina masterclass http://www.pd.infn.it/masterclasses/2013/ Risultati globali http://www.editgrid.com/qn-nd/qnmasterclasses/CMSWZ2013cern20003 Scaricare il DVD (MC2013 per accedere) http://www.physicsmasterclasses.org/downloads/DVD2013/dvd.html Masterclass 2013

  13. Videoconference Padova (Italia) Zagabria (Croazia) Budapest (Ungheria) Lione (Francia) Dublino (Irlanda) • Possiblequestions to be asked • Life @ CERN • Motivation to do physics • Higgsbosons • Othersearches + QUIZ Masterclass 2013

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