CERN Accelerating science

ALICE

Ultralight air-cooled mechanics for ALICE ITS3

While the new Inner Tracking System detector, ITS2, could finally start its data taking in nominal operation for the RUN3 of LHC, ALICE is already working at replacing the three innermost layers during LS3. The ITS3 (Fig.1) is a new vertex detector…

Read more


ALICE records first heavy-ion collisions

Following an intense period of upgrades, a totally revamped ALICE experiment statred  a very challenging period of commissioning with beam and data-taking during the first year of the LHC Run 3. The ALICE detector has undergone a major upgrade…

Read more


LHC experiments restart

The LHC restarted this summer, after a period of upgrades (LS2) and is gearing up to probe new realms of physics during a third run, which will be its most powerful yet. Run 3 of the LHC will feature higher-energy particle beams and higher collision…

Read more


ALICE Inner Tracking System is ready for data taking

The new Inner Tracking System (ITS) of the ALICE detector was installed inside the Time Projection Chamber (TPC) in spring 2021. The new ITS consists of 7 layers of monolithic pixel sensors, named ALPIDE, tiled up on linear staves of different…

Read more


Towards a FoCal for the ALICE experiment

A new forward high-resolution calorimeter, called FoCal (Forward Calorimeter) is being planned [1,2] as one of the two upgrade projects for the ALICE experiment that are aiming for installation during the LS3 (2026-2028) for physics data taking in…

Read more


ALICE ITS3 clears major milestone

With the R&D for the first truly cylindrical detectors based on ultra-thin, bent, wafer-scale monolithic silicon sensors, the ALICE collaboration aims at installing new vertex layers (“ITS3”) in LHC Long Shutdown 3. The envisioned setup…

Read more


A busy time at the ALICE Control Room as preparations gear up for 2022

After three years of challenging and intense upgrade activities and installation campaigns of LHC Long Shutdown 2 [1], ALICE started global commissioning in July to embark on a new data-taking period. Upgraded detectors and their new readouts were…

Read more


The new ALICE Fast Interaction Trigger

To reach Run 3 physics goals, ALICE (A Large Ion Collider Experiment) [1] must collect all minimum-bias data for an interaction rate (i.e., number of collisions each second) of 50 kHz for Pb–Pb and up to 1 MHz for pp collisions. This is two orders…

Read more


The commissioning and installation of the new ALICE ITS

The Inner Tracking System (ITS) is the innermost detector of the ALICE central barrel. It consists of seven cylindrical layers all equipped with Monolithic Active Pixel Sensors (MAPS) named ALPIDE (ALice PIxel DEtector). The ITS allows track ing…

Read more


LHC takes on the SMEFT challenge

The quest for new physics at the LHC is entering a new phase: the experiments are designing new strategies to target potential deviations from the Standard Model (SM) predictions in a systematic way, to complement the traditional “bump hunts” and,…

Read more