Polarization in fermion scattering
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Abstract
The behaviour of the helicity of an initially left-handed beam of massive fermions first interacting with a Coulomb field and then with a charged scalar particle via a photon exchange is analysed. It is found that in both cases the massive fermions have their helicity flipped, while massless fermions seeem to be unaffected by the electromagnetic field as far as their helicity is concerned.
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English
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Brazilian Journal of Physics, v. 26, n. 4, p. 709-714, 1996.
