Read article 'The LHC is back: four remarkable weeks'
The moment that particle physicists – and many others – around the world had been waiting for finally arrived on 20 November 2009. Bunches of protons circulated once again rou...
Read article 'Hadron spectra probe nature of matter in Pb–Pb collisions'
In current understanding, the matter created in heavy-ion collisions – the quark–gluon plasma (QGP) – behaves as a nearly perfect liquid.
Read article 'Can heavy-ion collisions cast light on strong CP?'
The symmetries of parity (P) and its combination with charge conjugation (C) are known to be broken in the weak interaction.
Read article 'Surprising studies in multiplicity'
One of the key ways of looking into what happens when high-energy hadrons collide is to measure the relationship between the number, or multiplicity, of particles produced and thei...
Read article 'International Masterclasses in the LHC era'
Now in its 10th year, the initiative reaches more than 40 countries.
Read article 'The LHC: a machine in training'
More than 10,000 tests need to be completed to prepare the LHC for a collision energy of 13 TeV.
Read article 'First low-mass dielectron results ahead of LHC Run 3'
In contrast to strongly interacting hadronic probes, dielectrons provide an unperturbed view into the quark–gluon plasma.
Read article 'Protons back with a splash'
Proton beams are once again circulating in the LHC in preparation for Run 3.
Read article 'Quark–gluon plasma narrows jets'
A new measurement by the ALICE collaboration has demonstrated for the first time that jets become narrower after “quenching” in quark–gluon plasma.
Read article 'Gennady Zinovjev 1941–2021'
A pioneer in studies of relativistic heavy-ion collisions, and leader of the Ukraine–CERN collaboration.
