Dresden 2013 – wissenschaftliches Programm
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T: Fachverband Teilchenphysik
T 15: Beyond the Standard Model (Theorie) 2
T 15.1: Vortrag
Montag, 4. März 2013, 16:45–17:00, WIL-A124
Resummation predictions for new electroweak gauge boson production — •David R. Lamprea1, Tomas Jezo2, Michael Klasen1, Florian Lyonnet2, and Ingo Schienbein2 — 1Institut für Theoretische Physik, Universität Münster, Wilhelm-Klemm-Straße 9, D-48149 Münster, Germany — 2Université Joseph Fourier/CNRS-IN2P3/INPG, 53 Avenue des Martyrs, F-38026 Grenoble, France
After the discovery of a particle compatible with the SM Higgs boson, it is now necessary to shift the attention towards theories Beyond the Standard Model (BSM) that aim to solve some of the several issues that the the SM presents.
Many promising candidate for BSM physics are based on the enlargement of the SM gauge groups either from a Grand Unification Theory (GUT) point of view (superstring-inspired or not) or with models that address particular issues (e.g. left-right models). One of the properties of these models is the appearance of new gauge bosons (Z′ and W′).
Resummation is an improvement over fixed-order perturbative QCD in kinematical regions where these predictions become unreliable. It restores the convergence properties in these regions and overall improves the precision of the computations.
In this work we present resummation predictions for new gauge bosons Z′ and W′ for several GUT and non-GUT models in the context of general phenomenological frameworks that allow the analysis of a wide range of theoretical possibilities.