It is possible to split a proton or a neutron because they are made of quarks. In general this class of composed particles is known as "hadrons".
All hadrons are made of quarks, there are 6 "flavours" (types) of quarks:
up, down, strange, charm, beauty, top
each of them can have 6 different "colours" (strong analogue to the electric charge):
red, blue, green, anti-red, anti-blue, anti-green
each hadron should be "white", so it can be made of R-G-B, R-antiR, antiR-antiG-antiB and so on.. try in counting how many they are... there is a whole zoo...
An electron, or a neutrino, instead, are known as "leptons" and, for what we know, are fundamental, they do not have any sub-component, so it it impossible to split them, because nothing smaller exists. Leptons are in some way more similar to quarks than to hadrons, they are:
electron, muon, tau particle
and each of them has a correspondant antiparticle, identical except for the electric charge:
anti-electron (or positron), anti-muon, anti-tau
and each of them has a correspondant neutrino, so we have
electronic, muonic and tauonic neutrinos and anti-neutrinos.
All these statements are based on the standard model that is the way we can describe almost everything in the world... almost.... no scientific theory is definitive, so this could change in a few years, but for now we know thinks to act this way.
2007-07-12 20:29:53
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answer #1
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answered by Alti 2
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Protons are used to collide with other protons and that is how many other subatomic particles were discovered and it was agreed that protons are not fundamental particles. But energy production takes place only if some mass disappears. And that may not be the case always.
2007-07-13 02:45:26
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answer #2
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answered by Swamy 7
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Quantum Chromodynamics theory (QCD) allows for a state in which quarks are free. However, the energy requirements are extremely high and probably not likely to be achieved. See http://en.wikipedia.org/wiki/Quark_matter
2007-07-13 02:51:25
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answer #3
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answered by gp4rts 7
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