P219lecture25particles

P219lecture25particles - Goal: To enjoy particle physics...

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Goal: To enjoy particle physics Objectives: Quarks, neutrinos, and Leptons – Oh my!
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We have seen How tiny a nucleus of an atom is, but what is a single proton or neutron made out of? Lets dive in!
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Contents of a proton The only thing reselbling a particle inside a proton or a neutron is a quark. A proton has 3 quarks. The quark is only 0.1 fm in size, so it does not take up much of the size. It also does not take up much of the size either. Also, the quark does not take up much of the energy (2%)
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So, what makes up a proton? Well, we don’t completely know, but most of it seems to be just energy in the form of Gluons. Gluons sort of glue the quarks together. But that isn’t all. However, Gluons are really hard to observe, and everything else is even harder. So, the simple proton isn’t quite so simple, and it will be a long time before we are able to unravel what protons are really made of.
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Anti-particles (antimatter) Before I talk about quarks I have to
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P219lecture25particles - Goal: To enjoy particle physics...

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