Bonn 2010 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 14: Elektroschwache Physik (Theorie)

T 14.5: Vortrag

Freitag, 19. März 2010, 15:00–15:15, HG XVI

Z+jet production at the LHC: Electroweak radiative correctionsAnsgar Denner1, Stefan Dittmaier2, •Tobias Kasprzik3, and Alexander Mück41Paul Scherrer Institut, Villigen, Schweiz — 2Albert-Ludwigs-Universität Freiburg — 3Institut für Theoretische Teilchenphysik (TTP), Karlsruhe Institute of Technology (KIT) — 4RWTH Aachen

The investigation of weak bosons produced with associated hard QCD jets will be of great phenomenological interest at the LHC, since such processes constitute an important background to a large variety of BSM-physics signatures. Moreover—owing to their large production cross sections and the clear leptonic decay signatures of the vector bosons—they can be used to monitor and calibrate the luminosity of the collider, constrain the PDFs, or for detector calibration.

To match the excellent experimental accuracy expected at the LHC, we have worked out a theoretical NLO analysis of V+jet production (V = W±, Z0) at hadron colliders, where all off-shell effects due to the leptonic decay of V are consistently accounted for to reach the aspired theoretical precision.

The focus of this talk will be on the electroweak corrections to Z+jet production at the LHC. We present some details of the calculation, and discuss the phenomenological implications of our results.

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