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Dortmund 2021 – scientific programme

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T: Fachverband Teilchenphysik

T 9: Associated Higgs production and Higgs quantum numbers I

T 9.1: Talk

Monday, March 15, 2021, 16:00–16:15, Ti

Simplified Template Cross Section Measurement of the Process ppHWWWWlν lν lν with ATLAS — •Moritz Hesping, Volker Büscher, Ralf Gugel, Thomas Honig, Christian Schmitt, and Natalie Wieseotte — Johannes Gutenberg Universität Mainz

The measurement of the couplings of the Higgs boson is of great scientific interest, since it has the potential of testing possible extensions to the Standard Model. The decay of a Higgs boson into a pair of W bosons after production in association with a W boson is especially useful, since in this process the Higgs boson exclusively couples to W bosons.

As the total cross section of the process ppHWWWWlν lν lν has previously been measured at the ATLAS detector using data from 2015 and 2016, the next step is now to extend this out to the scheme of Simplified Template Cross Sections (STXS), using the full run 2 dataset. The STXS mesurement of this process requires access to the transverse momentum of the associated W boson, which due to the presence of three neutrinos in the final state cannot be fully reconstructed. This talk details the analysis strategy used to enable a STXS measurement of the Higgs-W coupling.

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