CERN Accelerating science

ATLAS Note
Report number	ATL-PHYS-PROC-2024-089
Title	$t\bar{t}$+heavy flavour measurements with the full run 2 dataset using the ATLAS experiment
Author(s)	Morais Silva Goncalo, Ricardo Jose (LIP, Coimbra)
Corporate Author(s)	The ATLAS collaboration
Collaboration	ATLAS Collaboration
Publication	2024
Imprint	16 Oct 2024
Number of pages	6
In:	PoS ICHEP2024 (2025) pp.357
In:	42nd International Conference on High Energy Physics (ICHEP 2024), Prague, Czech Republic, 18 - 24 Jul 2024, pp.357
Subject category	Particle Physics - Experiment
Accelerator/Facility, Experiment	CERN LHC ; ATLAS
Free keywords	top-quarks plus jets ; heavy flavour ; TOP
Abstract	The production of top quark pairs in association with heavy-flavour jets ($b/c$) is a difficult process to calculate and model, and is one of the leading sources of background affecting the measurement of processes such as the associated production of a Higgs boson and a top-quark pair, $t\bar{t}H$. To improve our understanding of this process, a new inclusive and differential measurement of the production of $t\bar{t}$ accompanied by a jet initiated by $b$ quarks. The results presented were achieved using the full LHC Run-2 dataset collected by ATLAS.}

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