4 papers
hep-ex2025
Measurement of the top-quark mass using decays with a meson at 13 TeV with the ATLAS detector
ATLAS Collaboration
The top-quark mass is measured using top-quark decays producing an isolated lepton and meson reconstructed in its decay mode. The data sample was recorded with the A…
nucl-ex2025
Measurement of coherent exclusive production in ultraperipheral Pb+Pb collisions at TeV with the ATLAS detector
ATLAS Collaboration
The ATLAS experiment has performed a measurement of coherent exclusive production in ultraperipheral Pb+Pb collisions at TeV. The data…
hep-ex2025
Search for Beyond the Standard Model physics with anomaly detection in multilepton final states in collisions at TeV with the ATLAS detector
ATLAS Collaboration
A model-agnostic search for Beyond the Standard Model physics is presented, targeting final states with at least four light leptons (electrons or muons). The search regions are sep…
hep-ex2025
Observation of production at 13 TeV with the ATLAS detector
ATLAS Collaboration
This paper presents the first observation of top-quark pair production in association with two photons (). The measurement is performed in the single-lepton decay chann…