ATLAS is one of the four big experiments at CERN that exploits the full potential of discovery provided by the large hadron collider - LHC. The LIP Portuguese group signed the Letter of Intent of ATLAS and had a significant role in the design, construction, start-up of operations, trigger and data acquisition systems. The main contributions were to the hadronic calorimeter TileCal, to the forward detectors, and to the software development for jet trigger signatures. The group is contributing to detector performance studies and physics data analyses since the very first data provided by the LHC. In parallel, the group is strongly involved in the ATLAS upgrade efforts in view of operating during the High-Luminosity LHC phase, developing work mostly in TileCal and Trigger.
The ATLAS Portuguese group contributed to the discovery of the Higgs boson and is currently studying its properties. The group is a reference in the studies of the top quark and exploits this expertise in the search for physics beyond the standard model. It is also leader in exotics states studies. Last but not the least, the group is involved in the Heavy Ion program of the LHC, contributing to the study of the quark-gluon plasma (QGP), the state of matter that has occurred just after the Big Bang.
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Probing the CP nature of the top-Higgs Yukawa coupling in ttH and tH events with H→bb using the ATLAS detector at the LHC
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Author(s): Ana Luísa Carvalho, Emanuel Gouveia, Luis Coelho, Ricardo Gonçalo, António Onofre
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Submission: 2022-03-17, Acceptance: , Publication: 2022-04-03
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Reference: ATLAS-CONF-2022-016
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Performance of the ATLAS Level-1 topological trigger in Run 2
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Author(s): ATLAS Collaboration (2868 authors)
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Submission: 2022-01-01, Acceptance: 2022-01-01, Publication: 2022-01-01
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Reference: Eur. Phys. J. C 82 (2022) 7
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Measurement of b-quark fragmentation properties in jets using the decay B-+/- -> J/psi K-+/- in pp collisions at root s=13 TeV with the ATLAS detector
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Author(s): ATLAS Collaboration (2814 authors)
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Submission: 2021-12-20, Acceptance: 2021-12-20, Publication: 2021-12-20
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Reference: J. High Energy Phys. 12 (2021) 131
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The LHC Olympics 2020 a community challenge for anomaly detection in high energy physics
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Author(s): G. Kasieczka et al
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Submission: , Acceptance: , Publication: 2021-12-07
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Reference: ROPP Vol 84, No. 12, p124201
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