Multiloop calculations in the string-inspired formalism: The single spinor loop in QED
- 15 February 1996
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review D
- Vol. 53 (4) , 2150-2159
- https://doi.org/10.1103/physrevd.53.2150
Abstract
We use the world line path-integral approach to the Bern-Kosower formalism for developing a new algorithm for the calculation of the sum of diagrams with one spinor loop and a fixed number of external and internal photons. The method is based on world line supersymmetry, and on the construction of generalized world line Green functions. The two-loop QED β function is calculated as an example. © 1996 The American Physical Society.Keywords
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