TY - JOUR
T1 - Single scale tadpoles and O (GF mt2 αs3) corrections to the ρ parameter
AU - Boughezal, Radja
AU - Czakon, M.
N1 - Funding Information:
Parts of the presented calculations were performed on the DESY Zeuthen Grid Engine computer cluster. This work was supported by the Sofja Kovalevskaja Award of the Alexander von Humboldt Foundation sponsored by the German Federal Ministry of Education and Research.
PY - 2006/10/30
Y1 - 2006/10/30
N2 - 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 (GF mt2 αs3). 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].
AB - 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 (GF mt2 αs3). 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].
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U2 - 10.1016/j.nuclphysb.2006.08.007
DO - 10.1016/j.nuclphysb.2006.08.007
M3 - Article
AN - SCOPUS:33749255635
SN - 0550-3213
VL - 755
SP - 221
EP - 238
JO - Nuclear Physics B
JF - Nuclear Physics B
IS - 1-3
ER -