학술논문
Hypergeometric representation of a four-loop vacuum bubble
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Working Paper
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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.
Comment: 5 pages, to appear in the proceedings of the conference "Loops and Legs", Eisenach, 2006
Comment: 5 pages, to appear in the proceedings of the conference "Loops and Legs", Eisenach, 2006