Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1844476 | Nuclear Physics B | 2006 | 18 Pages |
Abstract
We present a new set of high precision numerical values of four-loop single-scale vacuum integrals, which we subsequently use to obtain the non-singlet corrections to the ρ parameter at O(GFmt2αs3). Our result for Δρ is in agreement with the recent calculation [K.G. Chetyrkin, M. Faisst, J.H. Kuhn, P. Maierhofer, C. Sturm, hep-ph/0605201].
Related Topics
Physical Sciences and Engineering
Mathematics
Mathematical Physics
Authors
R. Boughezal, M. Czakon,