Tag: ATLAS
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Elusive romance of top-quark pairs observed at the LHC
The CMS and ATLAS experiments at CERN’s Large Hadron Collider have observed an unforeseen feature in the behaviour of top quarks that suggests that these heaviest of all elementary particles form a fleeting union
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Accelerator Report: LHC protons outpacing the Easter tradition
The LHC has restarted and both beams have been circulating in the machine since 8 April, meaning that the start of the LHC beam commissioning during Easter is apparently not a constant of nature
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The LHC experiment collaborations at CERN receive Breakthrough Prize
The Breakthrough Prize in Fundamental Physics was awarded to the ALICE, ATLAS, CMS and LHCb collaborations during a ceremony held in Los Angeles on 5 April
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Accelerator Report: The LHC commissioning is well on track, but challenges lie ahead
The first beam-based physics of 2025 has started and more will follow soon. However, some unexpected challenges will cause a small delay in the restart of the LHC
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ATLAS celebrates its 2024 thesis award winners
Every year, these awards celebrate the outstanding achievements made by PhD students working with the collaboration
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Steering ATLAS forward with new management
Spokesperson Stéphane Willocq and Deputy Spokespersons Anna Sfyrla and Guillaume Unal will lead the collaboration for the next two years
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Observing triplets of weak bosons
ATLAS reports the first observation of a Z boson accompanied by two other carriers of the weak force
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The measurement of a lifetime
New ATLAS measurement of the lifetime of the electrically neutral beauty meson is the most precise to date
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ATLAS observes top quarks in lead–lead collisions
The result opens a new window into the study of the quark–gluon plasma that is believed to have filled the Universe briefly after the Big Bang
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Heavy-ion run at the LHC begins
For the next 17 days, every minute counts when it comes to taking lead–lead collision data