Séminaires, soutenances

Séminaire de Doctorante : Probing the strongest Higgs coupling in ATLAS

by Mrs Merve Nazlim AGARAS (LPC-Clermont)

Europe/Paris
Amphi Recherche

Amphi Recherche

Description

 After the discovery of a Higgs boson, the measurements 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 (ttH 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 through fine deviations from the SM predictions.
The ttH production analysis at ATLAS exploits several Higgs decay channels, together with different top quark decay modes. In this seminar, the general overview of the search for ttH production in multilepton final states analysis at ATLAS is presented focusing mainly on the background estimates using run2  dataset and  the statistical method.

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