@misc{10481/91789,
year = {2023},
month = {12},
url = {https://hdl.handle.net/10481/91789},
abstract = {A search for new heavy scalars with flavour-violating decays in final states
with multiple leptons and b-tagged jets is presented. The results are interpreted in terms
of a general two-Higgs-doublet model involving an additional scalar with couplings to the
top-quark and the three up-type quarks (ρtt, ρtc, and ρtu). The targeted signals lead to
final states with either a same-sign top-quark pair, three top-quarks, or four top-quarks.
The search is based on a data sample of proton-proton collisions at √s = 13TeV recorded
with the ATLAS detector during Run 2 of the Large Hadron Collider, corresponding to an
integrated luminosity of 139 fb−1. Events are categorised depending on the multiplicity of
light charged leptons (electrons or muons), total lepton charge, and a deep-neural-network
output to enhance the purity of each of the signals. Masses of an additional scalar boson
mH between 200−630 GeV with couplings ρtt = 0.4, ρtc = 0.2, and ρtu = 0.2 are excluded
at 95% confidence level. Additional interpretations are provided in models of R-parity
violating supersymmetry, motivated by the recent flavour and (g − 2)μ anomalies.},
organization = {CERN},
organization = {MICINN},
organization = {COST},
organization = {ERC},
organization = {ERDF},
organization = {Horizon 2020},
organization = {Marie Skłodowska-Curie Actions},
organization = {La Caixa Banking Foundation},
organization = {CERCA Programme Generalitat de Catalunya},
organization = {PROMETEO and GenT Programmes Generalitat Valenciana},
publisher = {Springer Nature},
keywords = {Beyond Standard Model},
keywords = {Exotics},
keywords = {Hadron-Hadron Scattering},
title = {Search for heavy Higgs bosons with flavour-violating couplings in multi-lepton plus b-jets final states in pp collisions at 13TeV with the ATLAS detector},
doi = {10.1007/JHEP12(2023)081},
author = {Aad, Georges and Rodríguez Chala, Mikael and Atlas Collaboration, /},
}