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New Representation of Two-Loop Propagator and Vertex Functions


Czarnecki, A and Kilian, U and Kreimer, D, New Representation of Two-Loop Propagator and Vertex Functions, Nuclear Physics B, 433, (2) pp. 259-275 . ISSN 0550-3213 (1995) [Refereed Article]

DOI: doi:10.1016/0550-3213(94)00455-N


We present a new method of calculating scalar propagator and vertex functions in the two-loop approximation, for arbitrary masses of particles. It is based on a double integral representation, suitable for numerical evaluation. Real and imaginary parts of the diagrams are calculated separately, so that there is no need to use complex arithmetics in the numerical program.

Item Details

Item Type:Refereed Article
Research Division:Physical Sciences
Research Group:Other physical sciences
Research Field:Other physical sciences not elsewhere classified
Objective Division:Expanding Knowledge
Objective Group:Expanding knowledge
Objective Field:Expanding knowledge in the physical sciences
UTAS Author:Kreimer, D (Dr Dirk Kreimer)
ID Code:3964
Year Published:1995
Web of Science® Times Cited:40
Deposited By:Physics
Deposited On:1995-08-01
Last Modified:2011-11-23

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