23 lines
1,012 B
HTML
23 lines
1,012 B
HTML
<p>So now you know about almost every particle in the standard
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model. All that is left is the Higgs boson, which you will see in the
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last chapter.</p>
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<h2>Why do we not see any of these new, heavier particles? </h2>
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<p>Why are there no atoms made of charm quarks, strange quarks and
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muons? The answer is that the heavy particles are very unstable, and
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quickly transform into their lighter brothers. Heavy particles are
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produced in very high energy collisions, such as in particle
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accelerator experiments. They are also found in cosmic rays – very
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energetic particles that fall to Earth from space, and that are
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produced in places as exotic like the core of the sun or even a
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supernova explosion.</p>
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<h2>Outlook</h2>
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<p>Why are there so many particles? Why do three generations exist
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rather than just one? The answer is simple: nobody knows!</p>
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<p>And there is more to come: You have probably heard of antimatter,
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haven’t you? This is what the next chapter will explain.</p>
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