Evaluation of simple Feynman graphs
Author:
- 1 March 1978
- journal article
- Published by AIP Publishing in Journal of Mathematical Physics
- Vol. 19 (3) , 542-548
Abstract
A number of one‐loop graphs with arbitrary external momenta and internal masses contributing to the perturbation expansion of a Euclidean φ4 theory are evaluated exactly in three and two dimensions. The final expressions are simple closed forms involving elementary functions only. A method for handling the multidimensional angular integrations that arise in calculations of massless QED or φ4 in four dimensions is also discussed.Keywords
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