ALICE A Large Ion Collider Experiment at the LHC

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ALICE A Large Ion Collider Experimentat the LHC
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The Big Bang

• At the root of all matter there are quarks, held
  together by gluons

• A millionth of a second after the big bang, all
  the matter was squeezed into a small space,
  around 300m wide

• The quarks and gluons were free, in a new kind of
  matter called quark-gluon plasma

• In this hot dense environment, strong force was
  too low to hold the quarks together

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What happened next?
ALICE and the mini-fireball

• After 10-23seconds, the plasma cooled, particles
  began to form and everything expanded out with a
  lot of energy!

• ALICE collides Pb ions which have been
  accelerated to 99 of the speed of light, so they
  hit each other with very high energies!

• But how can scientists see the QGP behind all the
  particles?

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The ALICE detector
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Thats all from me!

• All images not drawn or taken by me were taken
  from ALICE Public Pages
• http//aliceinfo.cern.ch/Public/index.html
• Have a look there for more information!