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Physics
Quantum Physics
What exactly is spin? Does the standard model work without spin?
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[QUOTE="simonjech, post: 6867247, member: 733880"] I think that you mean the Stern Gerlach experiment here where atoms of silver went through an inhomogenious magnetic field and the magnetic force acted on them even when these atoms were neutral. In classical physics this would not make any sence because classicaly, the magnetic moment of a particle depends only on the angular momentum. So it was a mystery for physicists back than. But later they figered out that there should be another quantity, similar to angular momentum which also contributes to final magnetic moment of a particle. So even a neutral particle can interact if the spin of the particle is non zero. Later in 1927 Dirac showed how spin is connected with lorentz transformation. [/QUOTE]
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Forums
Physics
Quantum Physics
What exactly is spin? Does the standard model work without spin?
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