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What happens when two electrons collide?

Particle accelerators such as that at CERN accelerate particles to high speeds before colliding them and measuring the particles given off.  However it is almost always protons that are collided, or ions or neutrons. Why doesn't anyone ever collide electrons?  Even if you did collide electrons, what sort of things would you see given off?

EDIT:

thanks for the answer, i'm also interested in what sort of particles are formed from electron collisions and how much energy is needed to form these particles.
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  • Asked by biggles1
  • on 2011-01-20 13:38:22
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Last edited on: 2011-01-21 13:18:00

Categories: Our universe.

Tags: electrons, ParticlePhysics, Protons, particles, Neutrons, sub-atomic.

 

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Activity in a vacuum.

In a vacuum, virtual particles are constantly appearing and annihilating, is this also going on inside my vacuum cleaner?
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Categories: Domestic Science, Our universe, Technology.

Tags: vacuum, Particle.

 

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How did they know they were firing a proton when they split the atom for the first time?

When physicists first split the atom by firing a proton at it, how did they a/ get a proton in the first place, and b/ know they were firing a proton, since they had not yet split the atom?
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  • Asked by LaexD
  • on 2010-07-27 21:00:28
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Last edited on: 2010-07-27 21:01:27

Categories: Our universe.

Tags: physics, Particle, atom, ParticleAccelerators, Protons, Splitting.

 

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How can a Higs Boson be in more than one place at a time?

Recently I have heard, from the new scientist mag, of a particle called a Higs Boson. I realise that it can be in more than one place at the same time. What I don't understand is, how is that physically possible.
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Categories: Our universe.

Tags: physics, Particle, How, Boson, Higs.

 

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What makes up gravity?

Is gravity some kind of pure energy? If yes, how does it affect the world around it in such a large way? If no, how it is "transported" around the universe?
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  • Asked by Tom96
  • on 2010-01-14 20:24:43
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Last edited on: 2010-01-14 20:26:13

Categories: Our universe.

Tags: gravity, particles.

 

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What form does light take?

I know that light can travel in waves, but what makes up those waves? Is it molecules or what?
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  • Asked by Tom96
  • on 2010-01-14 20:19:48
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Categories: Our universe.

Tags: light, particles.

 

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