Dortmund 2021 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 87: Extended Higgs Models III

T 87.8: Vortrag

Donnerstag, 18. März 2021, 17:45–18:00, Tl

Search for Dark Matter produced in association with a Standard Model Higgs boson decaying to b-quarks with 139 fb−1 of pp collision data with the ATLAS detector — •Janik von Ahnen — DESY, Hamburg, Germany

Many extensions of the Standard Model predict the production of Dark Matter in association with Higgs bosons. This search examines the final state of missing transverse momentum accompanied by a bb pair coming from a Higgs boson decay. For this matter proton-proton collision data is used which is produced at 13 TeV centre-of-mass energy and recorded by the ATLAS experiment at the LHC, amounting to an integrated luminosity of 139 fb−1. The increase in integrated luminosity in conjunction with many analysis optimizations result in a better sensitivity in comparison to previous iterations. No significant deviations from the Standard Model are observed and the results are interpreted in the context of the 2-Higgs doublet models with an additional vector or pseudoscalar mediator.

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