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What is Particle Physics? - Dimensions

What is Particle Physics? - Dimensions. Crystal. Molecule. Macrocosm. Atom. 10 1 m. 10 -2 m. 10 -9 m. Quark /. Proton. Nucleus. Electron. 10 -10 m. <10 -18 m. 10 -15 m. 10 -14 m. What is Particle Physics? - Big Bang. Today. Heavy Atoms. Light Atoms. Energy. Timescale.

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What is Particle Physics? - Dimensions

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  1. What is Particle Physics? - Dimensions Crystal Molecule Macrocosm Atom 101 m 10-2 m 10-9 m Quark / Proton Nucleus Electron 10-10 m <10-18 m 10-15 m 10-14 m DPG-Frühjahrstagung Dortmund Volker Büge 30. März 2006

  2. What is Particle Physics? - Big Bang Today Heavy Atoms ... Light Atoms Energy Timescale Nuclei Nucleons ... Elementary Particles Big Bang DPG-Frühjahrstagung Dortmund Volker Büge 30. März 2006

  3. Our Instruments – Accelerators - LINAC PEP II Rings Positron Electron Project SLAC Linear Accelerator Length: 3,2 km Beam Energy: 50 GeV Some experiments: SLC GLAST B Factory BaBar SLAC Stanford Linear Accelerator Center SLAC LINAC DPG-Frühjahrstagung Dortmund Volker Büge 30. März 2006

  4. Our Instruments – Accelerators - LHC Lake Geneva Large Hadron Collider Length: 27 km Beam energy: 14 TeV Below surface: 100 m Temperature: -271 °C Energy use: 1 TWh/a Best vacuum between earth and andromeda galaxy 4 large experiments: CMS ATLAS LHCb ALICE CERN Airport DPG-Frühjahrstagung Dortmund Volker Büge 30. März 2006

  5. Our Instruments – Detectors - CMS Compact Muon Solenoid - CMS Technische Daten: Gesamtgewicht: 12 500 T Durchmesser: 15 m Gesamtlänge: 21,5 m Magnetfeld (Solenoid): 4 Tesla Magnetfeld (Joch): 2 Tesla DPG-Frühjahrstagung Dortmund Volker Büge 30. März 2006

  6. Our Instruments – Detectors - Event Display DPG-Frühjahrstagung Dortmund Volker Büge 30. März 2006

  7. Our Instruments – Detectors - Data Rates Hardware Data Reduction ~ 60 TB/sec Level 1 Trigger CMS Collision Rate: ~ 40 MHz ~ 150 GB/sec Event size: ~1.5 MB for Offline- Analysis High Level Trigger ~ 225 MB/sec Tape & HDD Storage Software Data Reduction (PC Farm) DPG-Frühjahrstagung Dortmund Volker Büge 30. März 2006

  8. Our Instruments – Detectors - Storage & CPU DPG-Frühjahrstagung Dortmund Volker Büge 30. März 2006

  9. CMS High Energy Physics Collaboration CMS 38 Nations 160 Institutions > 2000 Scientists & Engineers (as of 2004) DPG-Frühjahrstagung Dortmund Volker Büge 30. März 2006

  10. CMS Software Framework & OS • Long-term experiments, large fluctuations of collaborators • Transparency for analyses • Huge software framework (~ 10GB) • Usage of external software (Pythia Monte Carlo Generator, ROOT Analysis Framework, ...) • High Energy Physics builds its own hardware  drivers, ... only reasonable answer Open Source, Linux DPG-Frühjahrstagung Dortmund Volker Büge 30. März 2006

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