TY  - JOUR
PB  - SciPost Foundation
DO  - 10.21468/SciPostPhysProc.8.116
TI  - Measurement of the $t\bar{t}t\bar{t}$ production at 13 TeV with the ATLAS detector at the LHC
PY  - 2022/07/13
UR  - https://www.scipost.org/SciPostPhysProc.8.116
JF  - SciPost Physics Proceedings
JA  - SciPost Phys. Proc.
VL  - 
IS  - 8
SP  - 116
A1  - Öncel, Ö. Ogul
AB  - Two measurements and their combination for the $t\bar{t}t\bar{t}$ production cross-section analysis using 139 fb$^{-1}$ of proton$-$proton collision data at a centre-of-mass energy of 13 TeV collected by the ATLAS detector at the LHC are presented. The first analysis uses the final states with either one or two opposite-sign leptons (electrons or muons). In the second analysis the final states with either two same-sign or at least three leptons are considered. With an observed (expected) significance of 4.3 (2.4) standard deviations over the background-only hypothesis, the second analysis provides the first evidence for the $t\bar{t}t\bar{t}$ process. No significant deviations from the Standard Model are observed.
ER  -

@Article{10.21468/SciPostPhysProc.8.116,
	title={{Measurement of the $t\bar{t}t\bar{t}$ production at 13 TeV with the ATLAS detector at the LHC}},
	author={Ö. Ogul Öncel},
	journal={SciPost Phys. Proc.},
	pages={116},
	year={2022},
	publisher={SciPost},
	doi={10.21468/SciPostPhysProc.8.116},
	url={https://scipost.org/10.21468/SciPostPhysProc.8.116},
}