ALICE
ALICE reveals quark-gluon plasma energy loss in OO collisions
A new state of matter Colliding heavy ions, such as lead, at nearly the speed of light in the LHC allows the creation of a new state of matter called the quark-gluon plasma (QGP). This near-perfect liquid of quarks and gluons is created because the…
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MOSAIX: Designing bent wafer-scale monolithic pixel sensors for the ALICE ITS3 upgrade
The ALICE detector is preparing a major upgrade to its Inner Tracking System (ITS) during LHC long shutdown 3 (2026-2030). This upgrade, called ITS3, will replace the three innermost tracking layers with three layers of cylindrical, 50 µm thick, 27…
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Towards monitoring in Run 4 and beyond: LHC experiments exchange perspectives on data quality at the HL-LHC
In March of 2026, experts from ALICE, ATLAS, CMS and LHCb gathered at CERN for a dedicated workshop on Data Quality Monitoring (DQM), bringing together developers, coordinators and detector specialists to discuss how the LHC experiments monitor the…
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Online use of AI within ALICE
A reconstructed event of particles in the ALICE TPC, with data taken with the neural network cluster finding algorithm. Pink dots are reconstructed clusters. AI applications have rapidly expanded in everyday life, and ALICE, among other high-…
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Understanding the formation of fragile light nuclei with ALICE
Light nuclei such as the deuteron are surprisingly fragile. A deuteron is bound by only a few mega-electronvolts, yet at the Large Hadron Collider it is produced in environments that are tens of trillions of degrees – about 100,000 times hotter than…
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FoCal Moves Toward Construction After a Successful Beam Test
Introduction Our recent beam test campaign for the ALICE Forward Calorimeter (FoCal) marked an important turning point for the project. After years of development toward a highly granular forward calorimeter, FoCal has now demonstrated the…
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Highlights from the 2nd NGT Technical Workshop
Participants of the 2nd Next Generation Triggers Technical Workshop at the Globe of Science and Innovation. Picture: Mariana Velho From 19 to 21 November 2025, the Next Generation Triggers (NGT) project held its 2nd Technical Workshop at CERN’s…
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Light ions at the LHC: first results from oxygen–oxygen and neon–neon collisions
This summer, the Large Hadron Collider (LHC) delivered its first-ever collisions between light ions, opening a new chapter in the study of nuclear structure and the quark–gluon plasma (QGP) – the extreme state of matter that existed in the first…
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Aerogel RICH detector for the future ALICE 3 PID system at LHC
For the LHC Runs 5, starting in 2036, the ALICE collaboration is proposing a new apparatus, ALICE 3 (CDS record), to further investigate the properties of Quark–Gluon Plasma (QGP) following the physics measurement campaign of LHC Runs…
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ALICE explores the quark–gluon plasma with light-ion collisions
In July 2025, the ALICE experiment took part in the LHC’s first-ever light-ion campaign, colliding oxygen–oxygen (O–O) and neon–neon (Ne–Ne) nuclei at a centre-of-mass energy of 5.36 TeV per nucleon pair. The short but intense runs offered a…
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