ISSN:
1432-0916
Source:
Springer Online Journal Archives 1860-2000
Topics:
Mathematics
,
Physics
Notes:
Abstract The φ k theory is compared with the multilinear theory of scalar fields φ1, φ2, ..., φ k having the same mass as that of φ. In particular, it is shown that Feynman integrals encountered in the φ3 theory are not necessarily present also in the φ1 φ2 φ3 theory, but they are if they correspond to planar Feynman graphs having no tadpole part. Furthermore, a necessary and sufficient condition for the presence of a φ3 Feynman integral in the φ1 φ 2 2 theory is found. Those considerations are applications of graph theory, especially of the coloring problem of graphs, to Feynman graphs.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01645654
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