Read article 'First sight of the running of the top-quark mass'
CMS has probed the running of the mass of the top quark for the first time - an important test of the validity of QCD, and an indirect search for unknown physics.
Read article 'ALICE extends quenching studies to softer jets'
Jet modification effects are predicted to be strongest in this kinematic region.
Read article 'Plasma polarised by spin-orbit effect'
Though several mysteries remain, the ALICE collaboration has uncovered evidence that quark-gluon plasmas with extreme angular momenta become polarised.
Read article 'LHC and RHIC heavy ions dovetail in Wuhan'
Quark Matter 2019 heard about new probes of the quark-gluon plasma, including first observations of the exotic hadron X(3872) and top-antitop production.
Read article 'LHC at 10: the physics legacy'
The LHC’s physics programme has transformed our understanding of elementary particles, writes Michelangelo Mangano.
Read article 'More plasma quenching seen in wide jets'
The quark-gluon plasma has a characteristic angular scale below which high-momentum shower components are not resolved, but interact as a single partonic fragment.
Read article 'Beauty baryons strike again'
The LHCb experiment has observed new beauty-baryon states, consistent with theoretical expectations for excited Ωb− baryons.
Read article 'Hypertriton lifetime puzzle nears resolution'
A new measurement by ALICE casts recent debates on this bound state of a proton, neutron and Λ in a new light.
Read article 'ALICE probes extreme electromagnetic fields'
When fewer than half the available lead nucleons merge and form a quark–gluon plasma, the spectators generate the strongest electromagnetic fields yet probed by scientists.
Read article 'Odessa conference surveys new trends'
The 2019 edition of New Trends in High Energy Physics had an emphasis on heavy-ion physics and strong interactions.
