1. Welcome to the CMS Virtual Visit
Jura
Lac Léman
Today, we are
visiting CMS virtually
CERN (FR)
Geneva
airport
CERN (CH)

2. Introduction 60 minutes virtual tour to CMS
This is more like discussion than watching a movie!
Be ready with your question!
Please send us your feedback: (김태정) or modify your registration form by providing your feedback in the virtual tour web page.

3. Large Hadron Collider 27 km circumference
9593 superconducting magnets at 1.9K (-271.3°C )
120 tonnes of liquid helium
Accelerates beams of protons to % the speed of light
Large Hadron Collider

4. Large Hadron Collider Proton beams circulate 11,245 times/sec
1 billion of proton-proton collisions/second
The energy of 6.5 TeV per beam is similar to TGV with 150 km/h
Collisions with a center of mass energy 13 TeV are a billion times hotter than the centre of the sun and create new particles (E = mc 2)

5. Compact Muon Solenoid (CMS)
Detects new particles created in LHC collisions
21m long and 15m high in a huge cavern 100m underground
12,500 tonnes
Compact Muon Solenoid

6. Compact Muon Solenoid (CMS)
Measures particle types, energies and directions
Selects and records a few 100 interesting events/sec
Silicon Detectors
measure tracks left by charged particles
Calorimeters
Absorb particles and measure their energy
Muon Detectors
Identify and measure muons that penetrate