TY  - JOUR
PB  - SciPost Foundation
DO  - 10.21468/SciPostPhysProc.18.019
TI  - Search for flavour-changing neutral current couplings between the top quark and the Higgs boson in multilepton final states with the ATLAS detector
PY  - 2026/01/29
UR  - https://scipost.org/SciPostPhysProc.18.019
JF  - SciPost Physics Proceedings
JA  - SciPost Phys. Proc.
VL  - 
IS  - 18
SP  - 019
A1  - Wahdan, Shayma
AB  - These proceedings present a search for flavour-changing neutral-current (FCNC) interaction involving the top quark, Higgs boson and either the up or the charm quark, using 140 $\text{fb}^{-1}$ of 13 TeV proton--proton collision data from the ATLAS detector at the Large Hadron Collider. Two channels are considered: the production of top quark-antiquark pair with one top decaying via FCNC, and the associated production of a top quark and Higgs boson. Final states contain either two same-charge leptons, or three leptons of which two have the same charge. Observed (expected) upper limits on the branching rations are determined as $\mathcal{B}(t\to Hu)<2.8 (3.0) × 10^{-4}$ and $\mathcal{B}(t\to Hc)<3.3 (3.8) × 10^{-4}$.
ER  -

@Article{10.21468/SciPostPhysProc.18.019,
	title={{Search for flavour-changing neutral current couplings between the top quark and the Higgs boson in multilepton final states with the ATLAS detector}},
	author={Shayma Wahdan and on behalf of the ATLAS collaboration},
	journal={SciPost Phys. Proc.},
	pages={019},
	year={2026},
	publisher={SciPost},
	doi={10.21468/SciPostPhysProc.18.019},
	url={https://scipost.org/10.21468/SciPostPhysProc.18.019},
}