Heidelberg 2022 – wissenschaftliches Programm

Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe

T: Fachverband Teilchenphysik

T 90: Higgs Boson: Associated Production 2

T 90.7: Vortrag

Donnerstag, 24. März 2022, 17:45–18:00, T-H21

Simplified Template Cross Section Measurement of pp→ WH→ WWW→ lν lν lν — •Moritz Hesping, Volker Büscher, Ralf Gugel, and Christian Schmitt — 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.

In addition to the inclusive analysis of the full run 2 dataset of the ATLAS experiment, the pp→ WH→ WWW→ lν lν lν process was measured in the scheme of Simplified Template Cross Sections (STXS). 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. In this talk the analysis strategy will be presented, with a focus on the regression neural network for the W momentum reconstruction and the multiclassifier network for signal-background separation.