Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2000-03-22
Eur.Phys.J.C19:715-741,2001
Physics
High Energy Physics
High Energy Physics - Theory
Uses feynmf package. 20 pages
Scientific paper
10.1007/s100520100586
The renormalized photon and electron propagators are expanded over planar binary trees. Explicit recurrence solutions are given for the terms of these expansions. In the case of massless Quantum Electrodynamics (QED), the relation between renormalized and bare expansions is given in terms of a Hopf algebra structure. For massive quenched QED, the relation between renormalized and bare expansions is given explicitly.
Brouder Christian
Frabetti Alessandra
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