Box diagram in Yukawa theory

B.L.G. Bakker, J.K. Boomsma, C.R. Ji

    Research output: Contribution to JournalArticleAcademicpeer-review


    We present a light-front calculation of the box diagram in Yukawa theory. The covariant box diagram is finite for the case of spin-1/2 constituents exchanging spin-0 particles. In light-front dynamics, however, individual time-ordered diagrams are divergent. We analyze the corresponding light-front singularities and show the equivalence between the light-front and covariant results by taming the singularities. © 2007 The American Physical Society.
    Original languageEnglish
    JournalPhysical Review D
    Issue number6
    Publication statusPublished - 2007

    Bibliographical note

    Times Cited: 4


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