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Search for Vector Boson Scattering with W/Z boson jet at ATLAS

Tatsumi Nitta, Waseda University
Thursday, February 28, 2019 - 3:45pm
NPL 178

Vector boson scattering (VBS) is a key process to probe the electroweak symmetry breaking (EWSB) of the Standard Model, since it involves both self-couplings of the vector bosons and the coupling with Higgs boson. If the Higgs mechanism is not the sole source of EWSB, the scattering amplitude deviates from SM prediction at high scattering energy. Moreover, deviation may be detectable even if a new physics scale is higher than reach of direct search. The LHC-ATLAS experiment have been finished 3 years Run2 physics program at √s = 13 TeV. In this talk, I will present recent study of VBS at Run2 focussing on final states having boosted W/Z jets. The boosted W/Z jets tagging is one of key techniques to probe the most energetic scatting W/Z boson in the VBS process. The recent development of boson tagging techniques is also presented.

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