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

Glennys R. Farrar; Filippo Neri

doi:10.1016/0370-2693(83)91074-2

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

Glennys R. Farrar, Filippo Neri

Research output: Contribution to journal › Article › peer-review

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(α_s⁴) and O(α_s⁵) five- and six-quark scattering amplitudes required to predict exclusive hadron scattering amplitudes in QCD.

Original language	English (US)
Pages (from-to)	109-114
Number of pages	6
Journal	Physics Letters B
Volume	130
Issue number	1-2
DOIs	https://doi.org/10.1016/0370-2693(83)91074-2
State	Published - Oct 13 1983

ASJC Scopus subject areas

Nuclear and High Energy Physics

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

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(αs4) and O(αs5) five- and six-quark scattering amplitudes required to predict exclusive hadron scattering amplitudes in QCD.",

author = "Farrar, {Glennys R.} and Filippo Neri",

note = "Funding Information: Research supported by the National Science Foundation *l Ref \[2\]g ives the upsdon total width to three-loop and ref \[3\]g wes 3(g) to three loops mous increase in computational power. This letter presents those new features of our calculation which can be usefully apphed m many other QED or QCD calculations. Copyright: Copyright 2014 Elsevier B.V., All rights reserved.",

year = "1983",

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doi = "10.1016/0370-2693(83)91074-2",

language = "English (US)",

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T1 - How to calculate 35 640 O(α5) Feynman diagrams in less than an hour

AU - Farrar, Glennys R.

AU - Neri, Filippo

N1 - Funding Information: Research supported by the National Science Foundation *l Ref \[2\]g ives the upsdon total width to three-loop and ref \[3\]g wes 3(g) to three loops mous increase in computational power. This letter presents those new features of our calculation which can be usefully apphed m many other QED or QCD calculations. Copyright: Copyright 2014 Elsevier B.V., All rights reserved.

PY - 1983/10/13

Y1 - 1983/10/13

N2 - 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(αs4) and O(αs5) five- and six-quark scattering amplitudes required to predict exclusive hadron scattering amplitudes in QCD.

AB - 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(αs4) and O(αs5) five- and six-quark scattering amplitudes required to predict exclusive hadron scattering amplitudes in QCD.

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JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

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