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28 March 2024
 
  » arxiv » hep-ph/0203143

 Article overview


Evaluation of a Class of Two-Scale Three-Loop Vacuum Diagrams
J.-M. Chung ; B. K. Chung ;
Date 15 Mar 2002
Journal J.Korean Phys.Soc. 40 (2002) 435-442
Subject hep-ph
AbstractAs a generalization of a previous work [Phys. Rev. D. {f 59}, 105014 (1999)], we compute analytically a class of three-loop vacuum diagrams with two {em arbitrarily} different mass scales. We use a decomposition algorithm in which the integrand of the final integral for the third momentum vector, say, $k$, becomes independent of the angles of $k$-vector in spherical polar coordinates. This algorithm proves to be very efficient in obtaining exclusively all $e$-pole terms of the given diagram.
Source arXiv, hep-ph/0203143
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