How to calculate 35 640 O(α5) Feynman diagrams in less than an hour

Glennys R. Farrar, Filippo Neri

    Research output: Contribution to journalArticle

    Abstract

    We present a powerful method for evaluating Feynman amplitudes involving fermions which interact through gauge bosons. Implementing our procedure on a computer, we have evaluated the O(αs 4) and O(αs 5) five- and six-quark scattering amplitudes required to predict exclusive hadron scattering amplitudes in QCD.

    Original languageEnglish (US)
    Pages (from-to)109-114
    Number of pages6
    JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
    Volume130
    Issue number1-2
    DOIs
    StatePublished - Oct 13 1983

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    Feynman diagrams
    scattering amplitude
    quarks
    bosons
    quantum chromodynamics
    fermions

    ASJC Scopus subject areas

    • Nuclear and High Energy Physics

    Cite this

    How to calculate 35 640 O(α5) Feynman diagrams in less than an hour. / Farrar, Glennys R.; Neri, Filippo.

    In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, Vol. 130, No. 1-2, 13.10.1983, p. 109-114.

    Research output: Contribution to journalArticle

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