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Results tagged with helicity
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user 3887
In particle physics, helicity is the projection of the angular momentum onto the direction of momentum. For massless spin-1⁄2 particles, helicity is equivalent to the chirality operator multiplied by $\hbar/2$, so may be used for related chirality questions as well.
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Why does photon have only two possible eigenvalues of helicity? [duplicate]
But I can't find any references describing how $E(2)$ precludes the existence of photons with helicity 0. …
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