Mathematical Physics
[Submitted on 26 May 2011 (v1), last revised 29 Jun 2011 (this version, v2)]
Title:Counting master integrals: integration by parts vs. differential reduction
View PDFAbstract:The techniques of integration by parts and differential reduction differ in the counting of master integrals. This is illustrated using as an example the two-loop sunset diagram with on-shell kinematics. A new algebraic relation between the master integrals of the two-loop sunset diagram that does not follow from the integration-by-parts technique is found.
Submission history
From: Bernd Kniehl [view email][v1] Thu, 26 May 2011 15:10:26 UTC (7 KB)
[v2] Wed, 29 Jun 2011 18:57:25 UTC (9 KB)
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