Limits on Massless Particles
作者： Steven Weinberg , Edward Witten
DOI: 10.1016/0370-2693(80)90212-9
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摘要: Abstract We show that in all theories with a Lorentz-covariant energy-momentum tensor, such as known renormalizable quantum field theories, composite well elementary massless particles j > 1 are forbidden. Also, conserved current, symmetry commutes local symmetries, there cannot exist or nonvanishing values of the corresponding charge and 1/2.
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