Coulomb gluons and the ordering variable

Rene Angeles Martinez, Jeffrey R Forshaw, Michael H Seymour

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    We study in detail the exchange of a Coulomb (Glauber) gluon in the first few orders of QCD perturbation theory in order to shed light on their accounting to all orders. We find an elegant cancellation of graphs that imposes a precise ordering on the transverse momentum of the exchanged Coulomb gluon.
    Original languageEnglish
    JournalThe Journal of High Energy Physics (Online)
    Publication statusPublished - 3 Dec 2015


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