ATLAS researchers presented several new results at the recent Rencontres de Moriond conference, spanning over a decade of LHC data.

In the new results presented at the Moriond conferences, the ATLAS Collaboration tested the CP invariance of Higgs-boson interactions with vector bosons (W or Z bosons).

The ATLAS Collaboration has just published the most precise measurement to date of the production cross section of top-quark pairs. The measured value is 829 ± 15 picobarns and has a relative uncertainty of just 1.8%.

The ATLAS Collaboration has released the most detailed analysis to date of the production of top-quark pairs alongside a W boson.

The ATLAS Collaboration at CERN announces the observation of the simultaneous production of four top quarks. This is one of the rarest – and heaviest – processes ever observed at the Large Hadron Collider (LHC), with a total particle mass of almost 700 GeV.

The ATLAS Collaboration at CERN has released a precise new measurement of the Z-boson transverse momentum. This has allowed researchers to determine the strength of the strong force. Their result has less than 1% uncertainty, making it the most precise determination of the strong force ever made by a single experiment.

The ATLAS Collaboration has measured the W boson mass to be 80360 MeV with an uncertainty of 16 MeV – in agreement with the Standard Model.

The ATLAS Collaboration has released an impressive set of searches for leptoquarks interacting with third-generation leptons or quarks – placing valuable constraints on leptoquark parameters.

The ATLAS Collaboration has released two new studies of the tau lepton, investigating whether this elementary particle may actually be composite in nature.

The winter conference season has begun! This month, all roads lead to La Thuile in the Italian Alps, where experimental physicists and theorists will take part in some of the most important particle physics meetings of the year. The La Thuile and Rencontres de Moriond conferences promise not to disappoint, with topical sessions ranging from heavy-ion and neutrino physics, to dark matter searches and astroparticle observations.