Nov. 2 – 2B03 02/11/2011 9:30:00 AM
GUEST LECTURE – THE LARGE HADRON COLLIDER
Accelerator being built near Geneva
A long time coming.
All about falsifying theories.
Standard Model – main paradigm for particle physics
What is it?
Take particles and shoot them down a tube.
An enormous machine, located underground.
Protons collide by going both ways across the circle.
Going really fast - almost at the speed of light?
First scene of Angels and Demons – antimatter created @ CERN
Challenges to LHC – 1) particles invisibles
o 2) Particles decay really fast
o You have to take what you have (all the normal boring
particles) and infer what they came from
Did not work. Thousands of magnets, and all super-connecting.
Problem was that magnets did not connect properly at “the
o Worked for a couple days, but then broke.
o Didn’t replace them all, only some of the magnets that had
Table – only fixed the red ones, not the blue ones.
The plan now -> to run @ half the speed.
What they are finding? Standar