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Göttingen 2012 – scientific programme

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T: Fachverband Teilchenphysik

T 14: QCD (Theorie) 4

T 14.4: Talk

Friday, March 2, 2012, 10:15–10:30, VG 3.103

Bottom mass from Upsilon sum rules at NNLLAndre Hoang1, Pedro Ruiz-Femenia2, and •Maximilian Stahlhofen11University of Vienna, Austria — 2IFIC, Valencia

A new determination of the bottom quark mass from nonrelativistic (large-n) sum rules with renormalization group (RG) improvement at NNLL is presented. This method is highly competitive and we obtain a precise value for the bottom mass. The RG improvement leads to a considerable stabilization of the result for the bottom mass with respect to renormalization and factorization scale dependence com- pared to previous fixed order results.

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