Light-front singularities in the Yukawa
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B.L.G. Bakker; C.-R. Ji
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Article
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2006
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Elsevier Science
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English
โ 244 KB
In light-front dynamics singularites may appear in time-ordered amplitudes that are absent in the manifestly covariant treatment of a system described by the same Lagrangian. Examples are discussed for the case of the Yukawa model. It is shown that both instantaneous contributions to the fermion pro