CERN Accelerating science

ALICE experiment

The period of the year when ALICE plays the leading role at LHC has finally arrived: after smashing protons for months, the LHC accelerated lead ions on November 7th and continued until the winter shut-down. 

Thanks to the outstanding performances of the LHC, the experiments presented a wealth of new results in ICHEP2016.

LHC Restart 2016

by Panos Charitos

Following the 2016 restart of the LHC, we have asked the run coordinators of the four largest LHC experiments — ALICE, ATLAS, CMS and LHCb — to share a few words with us about the first data taking. Their broad physics programme will be complemented by the measurements of three smaller experiments (TOTEM, LHCf and MoEDAL) and may hold the key to new physics.

Two of the LHC experiments, ATLAS and ALICE, recently announced winners of the “ATLAS PhD Grant” and “ALICE Thesis Award” schemes. The prizes aim to foster healthy competition between young members of the two collaborators and acknowledge the hard efforts of the winners but also of those who were considered for these awards.

Exit protons, enter ions

by Federico Ronchetti

The 2015 LHC proton run, the first after the long shutdown 1, ended last week with a good performance of the accelerator given the challenges of running at the new collision energy of 13 TeV. 

LHC experiments upgraded trigger plans

by Panos Charitos

As the LHC prepares for higher energies and luminosities all four experiments have upgraded their triggering to record data more efficiently and make sure that their detectors are ready to find evidence for new physics.

ALICE, presented a wealth of scientific results. Equipped with a central barrel with high-resolution tracking systems, several detectors for identifying particles from low to high momentum, electromagnetic calorimeters, and with a muon spectrometer at forward rapidity, the ALICE detector is ideally suited for studies involving hard probes.

During, the 7th edition of the Hard Probes International Conference series was hosted by McGill University in Montréal, Canada, the LHC experiments presented a wealth of scientific results from heavy-ion collsions at the LHC. 

Measurements by the BASE experiment have compared the same properties of protons and antiprotons to high precision while the ALICE collaboration has measured the difference between mass-to-charge ratios for deuterons and antideuterons, as well as for helium-3  and antihelium-3 nuclei.

 We asked the Data Quality Monitoring teams of the four major LHC experiments to present the tools they are using and how the DQM is organized to fit the specifications of each detector.



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