München 2009 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 13: QCD (Theorie) 3 / Elektroschwache Physik (Theorie)

T 13.4: Vortrag

Mittwoch, 11. März 2009, 17:30–17:45, M109

Radiative corrections to Z-boson hadroproduction in the Standard Model and its minimal supersymmetric extension — •Max Huber and Stefan Dittmaier — Max-Planck-Institut für Physik (Werner-Heisenberg-Institut), München, Germany

The high accuracy envisaged for future measurements of Z-boson production at hadron colliders has to be matched by precise theoretical predictions. We study the next-to-leading order electroweak radiative corrections to Z-boson production and compare different schemes for the implementation of the Z-boson width. In addition we discuss the leading electroweak corrections beyond O(α). In particular, we include universal two-loop effects from Δα and Δρ, and the leading two-loop corrections in the high-energy Sudakov regime as well as higher-order final-state photon radiation off muons in the structure function approach. Furthermore the complete supersymmetric electroweak and QCD corrections to Z-boson production within the MSSM are presented at NLO.