The CMS collaboration has measured the speed of sound in the quark–gluon plasma more precisely than ever before, offering new insights into this extremely hot state of matter

The whopping number of collisions recorded by ALICE during the recent five-week heavy-ion run of the LHC is 40 times greater than the total recorded by the experiment in its previous periods of heavy-ion data taking, from 2010 to 2018

New ALICE measurements shed light on the dynamics of charm and beauty particles in quark–gluon plasma

The ALICE collaboration presents its first results based on data collected with the upgraded detector in 2022, the first year of Run 3 of the LHC, at the 2023 Quark Matter conference

This is the first measurement of the neutron skin of lead-208 using exchanges predominantly involving gluons and it can provide insight into the structure of nuclei and neutron stars

In about a week, lead ions will be sent from the SPS into the LHC to collide in the accelerator’s four big experiments

The observation brings physicists a step closer to finding the origin of collective phenomena in small collision systems

The ALICE collaboration shows that different bound states of a charm quark and its antimatter counterpart are differently modified by quark–gluon plasma, opening new avenues for studying this special state of matter and its effects

A new analysis by the ALICE collaboration confirms the expected role of quark mass in the interactions of quarks with a quark–gluon plasma

Our fifth story in the LHC Physics at Ten series looks at how the LHC has recreated and greatly advanced our knowledge of the state of matter that is believed to have existed shortly after the Big Bang