Volume 382 - The Eighth Annual Conference on Large Hadron Collider Physics (LHCP2020) - Session : Joint Higgs + Top
Recent ttH measurements with ATLAS
M.N. Agaras* on behalf of the ATLAS collaboration
*corresponding author
Full text: pdf
Pre-published on: November 28, 2020
Published on: January 11, 2021
Abstract
After the discovery of a Higgs boson, the measurement of its properties plays a very important role at the LHC. The determination of the associated production of the Higgs boson and a top-antitop quark pair ($t\bar{t}H$ production) is of particular importance as it offers a tree-level access to measuring the Higgs-top Yukawa coupling. With a predicted numerical value close to unity, this coupling plays a crucial role in the stability of the Higgs potential at high energy scales and can also be a probe for physics beyond the Standard Model (SM) through fine deviations from the SM predictions.
The $t\bar{t}H$ production analysis at ATLAS exploits several Higgs decay modes, together with different top quark decay modes. In this proceeding, the latest results on the search for the $t\bar{t}H$ process in four final states with ATLAS is presented, with particular focus on the multilepton final state.
DOI: https://doi.org/10.22323/1.382.0179
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