Hypergeometric representation of a four-loop vacuum bubble
arXiv:hep-ph/0607006 · doi:10.1016/j.nuclphysbps.2006.09.040
Abstract
In this article, we present a new analytic result for a certain single-mass-scale four-loop vacuum (bubble) integral. We also discuss its systematic $\e$-expansion in $d=4-2\e$ as well as $d=3-2\e$ dimensions, the coefficients of which are expressible in terms of harmonic sums at infinity.
5 pages, to appear in the proceedings of the conference "Loops and Legs", Eisenach, 2006
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