3–8 Jan 2023
Fefor Høifjellshotell - Norge
Europe/Oslo timezone

Search for beyond Standard Model Higgs resonances with a parametrised neural network in ATLAS

5 Jan 2023, 21:10
15m
Fefor Høifjellshotell - Norge

Fefor Høifjellshotell - Norge

Fefor Høifjellshotell - Lomsetervegen 25, 2640 Vinstra, Norway
Contributed Talk Higgs physics Contributed Talks IV

Speaker

Laura Pereira Sanchez (Stockholm University (SE))

Description

Several beyond Standard Model theories predict the existence of heavy scalars which could decay into the Standard Model (SM) Higgs boson. This analysis focuses on the search for resonant heavy scalar $X$ decaying to a lighter scalar $S$ and the SM Higgs boson $H$ in a final state with two photons and 2 $b$-jets. A neural network (NN), parametrised on the resonant $X$ and $S$ masses, is used to discriminate signal from background and a likelihood fit to the NN discriminant is performed to set expected upper limits to a wide range of $X$ and $S$ masses.

Author

Laura Pereira Sanchez (Stockholm University (SE))

Presentation materials