Dresden 2013 – scientific programme

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T: Fachverband Teilchenphysik

T 10: QCD / Elektroschwache Physik (Theorie) 1

T 10.7: Talk

Monday, March 4, 2013, 12:30–12:45, WIL-A120

Semileptonic Decays in Vector Boson Pair Production Processes — •Bastian Feigl and Dieter Zeppenfeld — ITP, Karlsruher Institut für Technologie, 76131 Karlsruhe

Electroweak gauge boson production is usually done with leptonic decays of the bosons, as the decay leptons allow for a good background suppression at hadron colliders. Nevertheless, semileptonic decay modes provide the opportunity of gaining additional sensitivity from the experiment.

Semileptonic decay modes have been implemented at leading order into the parton level Monte Carlo program Vbfnlo, which already has the production processes with fully leptonic decay modes available at next-to leading order QCD. Processes considered include diboson production and diboson plus two jet production in vector boson fusion.

Especially for the real emission part of the production process, the particle selection in the partonic final state and the jet algorithm parameters can have a significant impact on the resulting cross section and K-factors.