ALICE upgrades during the LHC Long Shutdown 2

Summary, in English

A Large Ion Collider Experiment (ALICE) has been conceived and constructed as a heavy-ion experiment at the LHC. During LHC Runs 1 and 2, it has produced a wide range of physics results using all collision systems available at the LHC. In order to best exploit new physics opportunities opening up with the upgraded LHC and new detector technologies, the experiment has undergone a major upgrade during the LHC Long Shutdown 2 (2019–2022). This comprises the move to continuous readout, the complete overhaul of core detectors, as well as a new online event processing farm with a redesigned online-offline software framework. These improvements will allow to record Pb-Pb collisions at rates up to 50 kHz, while ensuring sensitivity for signals without a triggerable signature. © 2024 CERN for the benefit of the ALICE collaboration.

• Author: S. Acharya; J. Adolfsson; M.T. Angelsmark; S. Basu; P. Christiansen; H.M. Ljunggren; O. Matonoha; A.F. Nassirpour; A. Ohlson; A. Oskarsson; L. Österman; D. Silvermyr; J. Staa; O. Vazquez Rueda; L.N. Vergara Urrutia; V. Vislavicius; N. Zurlo
• Department/s: Particle and nuclear physics
• Publishing year: 2024
• Language: English
• Publication/Series: Journal of Instrumentation
• Volume: 19
• Issue: 5
• Links: http://dx.doi.org/10.1088/1748-0221/19/05/P05062
• Document type: Journal article
• Publisher: IOP Publishing
• Topic: Subatomic Physics
• Keywords: astroparticle physics; Heavy-ion detectors; Large detector systems for particle; Colliding beam accelerators; Hadrons; Lead alloys; Particle detectors; Photons; Reactor shutdowns; Astroparticle physics; Collision systems; Detector systems; Large detector system for particle; Large detectors; Large ion collider experiments; LHC detectors; New detectors; New physics; Heavy ions
• Status: Published
• ISBN/ISSN/Other: ISSN: 1748-0221