Read article 'Exploring the spin of top-quark pairs'
Exploring the spin of top-quark pairs
The Standard Model makes precise predictions for the frequency at which the spin of the top quark is aligned with the spin of the top antiquark.
Read article 'Exploring the spin of top-quark pairs'
Read article 'ATLAS observes scattering of vector bosons'
ATLAS observes scattering of vector bosons
The cross-section of longitudinal weak-boson scattering would diverge, resulting in meaningless values, were it not for the exact cancellation due to Higgs-boson contributions.
Read article 'CMS detects first production of top quark and photon'
CMS detects first production of top quark and photon
The predicted cross section for tγj, including the branching fraction, is 81 fb, which corresponds to a few hundred events in the whole dataset.
Read article 'A decade of advances in jet substructure'
A decade of advances in jet substructure
Recent focus on measuring Standard Model properties using jet substructure has motivated ATLAS to measure the energy and mass response of large-radius jets with the highest possible precision.
Read article 'Observation of Higgs-boson decay to bottom quarks'
Observation of Higgs-boson decay to bottom quarks
Processes that include the Higgs boson’s favoured decay mode to b quarks (with about 58% probability) have until now remained elusive.
Read article 'Closing in on the muon’s magnetic moment'
Closing in on the muon’s magnetic moment
Experiment E989 is a reincarnation of the muon g-2 experiment at BNL, which found the muon’s anomalous magnetic moment to be 3.5 sigma above the Standard Model prediction.
Read article 'ATLAS observes Higgs-boson decay to b quarks'
ATLAS observes Higgs-boson decay to b quarks
Observing this decay mode and measuring its rate is mandatory to confirm (or not) the mass generation for fermions via Yukawa interactions, as predicted in the SM.
Read article 'Loops and legs in quantum field theory'
Loops and legs in quantum field theory
The conference brought together more than 100 researchers from 18 countries to discuss the latest results in precision calculations for particle physics at colliders.
Read article 'LHCP reports from Bologna'
LHCP reports from Bologna
Some 450 researchers from around the world headed to historic Bologna to attend the sixth Large Hadron Collider Physics conference.
Read article 'Measuring Higgs-boson interactions with third-generation fermions'
Measuring Higgs-boson interactions with third-generation fermions
New results released by the ATLAS collaboration firmly establish and measure these so-called Yukawa couplings to third-generation fermions.
