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T: Fachverband Teilchenphysik

T 59: Elektroschwache Wechselwirkung I

T 59.3: Vortrag

Mittwoch, 21. März 2018, 17:05–17:20, Z6 - SR 1.005

Search for anomalous quartic gauge couplings in the all-jets final state at √s=13 TeV with the CMS experiment — •Steffen Albrecht, Robin Aggleton, and Andreas Hinzmann — University of Hamburg

This talk presents a search for new physics analysing the scattering of weak bosons (V V → V V, where V denotes a W^± or a Z boson) produced in association with two jets in pp-collisions at √s=13 TeV. The study of vector boson scattering can help to extend the understanding in the mechanism behind electroweak symmetry breaking and to find new physics by precisely measuring gauge boson couplings.

In this analysis we constrain the anomalous quartic gauge couplings in terms of a framework of dimension-eight effective field theory operators. The all-jets final state at di-boson invariant masses larger than 1 TeV is explored for the first time. The two bosons are highly boosted and each form a single jet, allowing for significant reduction of SM backgrounds.