3 July 2023
Instituto Superior Técnico
Europe/Lisbon timezone

Search for CP violation in H->bbγ decays at ATLAS

3 Jul 2023, 13:00
15m
Anfiteatro Abreu Faro (Instituto Superior Técnico)

Anfiteatro Abreu Faro

Instituto Superior Técnico

Av. Rovisco Pais 1, 1049-001 Lisboa

Speaker

Carolina Costa (LIP)

Description

The Standard Model of Particle Physics is a theory that describes the fundamental particles and how they interact. Although being a well-accepted theory, there are phenomena that the Standard Model of Particle Physics cannot explain, e.g. the baryonic asymmetry, indicating that it must be part of a broader theory. By probing the Higgs sector experimentally and looking for discrepancies compared to the Standard Model predictions, physics Beyond the Standard Model may be found. It is important to notice that all the properties of the Higgs boson, i.e., all its possible interactions have to be probed experimentally. This work is focused on the study of the H-b-b-γ vertex. In order to proceed with this study, it is necessary to choose the best channel of production to the Higgs decay, from the ones available at the LHC. Due to contradictory results previously obtained, this work intends on determining if the gluon-gluon fusion production channel has enough sensibility for this analysis.

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