ALICE upgrades during the LHC Long Shutdown 2
S. Acharya, R.A. Hernandez, D. Adamová, A. Adler, Jonatan Adolfsson, D. Agguiaro, G. Aglieri Rinella, M. Agnello, F. Agnese, N. Agrawal, S. Aguilar Salazar, Z. Ahammed, S. Ahmad, M. U. Ahmed, S. U. Ahn, I. Ahuja, S. Aiola, A. Akindinov, M. Al-Turany, H.G. Alarcon Cubas, D. Aleksandrov, B. Alessandro, Mercy Alexis, K. Alexopoulos, H. M. Alfanda, R. Alfaro Molina, G Alfarone, Bushra Ali, A. Alici, N. Alizadehvandchali, A. Alkin, J. Alme, G. Alocco, T. Alt, I. Altsybeev, W. Amend, M. N. Anaam, F. Anastasopoulos, E. Anderssen, C. Andrei, D. Andreou, A. Andronic, M. Angelsmark, V. Anguelov, A. Anjam, F. Antinori, P. Antonioli, N. Apadula, L. Aphecetche, H. Appelshäuser, V. Aprodu, C. Arata, M. Arba, S. Arcelli, M. Aresti, R. Arnaldi, Jhoao Gabriel Martins Campos Almeida Arneiro, O.W. Arnold, I. C. Arsene, M. Arslandok, P. Atkinson, A. Augustinus, R. Averbeck, Armando Ayala Pabón, M. D. Azmi, C. Azzan, Roberto Baccomi, A. Badalà, J. Bae, Y. W. Baek, X. Bai, R. Bailhache, Y. Bailung, D. Baitinger, A. Balbino, C. Baldanza, A. Baldisseri, Bartosz Baliś, M. Ball, D. Banerjee, Z. Banoo, R. Barbera, P.L. Barberis, F. Barile, L. Barioglio, M. Barlou, G. G. Barnaföldi, L. S. Barnby, V. Barret, L. Barreto, C. Bartels, K. Barth, R. Barthel, E. Bartsch, F. Baruffaldi, N. Bastid, S. Basu, G. Batigne, D. Battistini, B. Batyunya
Abstract
Abstract 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.