Development of the CMS detector for the CERN LHC Run 3
Aram Hayrapetyan, A. Tumasyan, Wolfgang Adam, Janik Walter Andrejkovic, Bernhard Arnold, H. Bergauer, Thomas Bergauer, S. Chatterjee, K. Damanakis, M. Dragicevic, A. Escalante Del Valle, Priya Sajid Hussain, M. Jeitler, Natascha Krammer, Dietrich Liko, Ivan Mikulec, J. Schieck, R. Schöfbeck, Dennis Schwarz, M. Sonawane, S. Templ, W. Waltenberger, C.-E. Wulz, M. R. Darwish, Janssen, Tahys, P. Van Mechelen, E. S. Bols, J. D’Hondt, Soumya Dansana, A. De Moor, M. Delcourt, H. El Faham, S. Lowette, I. Makarenko, A. Morton, Denise Müller, A. R. Sahasransu, Stefaan Tavernier, M. Tytgat, S. Van Putte, D. Vannerom, B. Clerbaux, G. De Lentdecker, Laurent Favart, D. Hohov, J. Jaramillo, Mohammad A. Khalilzadeh, Kyeongpil Lee, M. Mahdavikhorrami, A. Malara, S. Paredes, L. Pétré, Nicolas Postiau, Laurent Thomas, M. Vanden Bemden, Catherine Vander Velde, P. Vanlaer, M. De Coen, D. Dobur, J. Knolle, Luka Lambrecht, Gianny Mestdach, César Rendón, Amrutha Samalan, K. Skovpen, N. Van Den Bossche, B. Vermassen, Liam Wezenbeek, A. Benecke, Giacomo Bruno, C. Caputo, C. Delaere, I. S. Donertas, A. Giammanco, K. Jaffel, Sandhya Jain, V. Lemaitre, J. Lidrych, Paola Mastrapasqua, Mastrapasqua, Paola, T. T. Tran, S. Wertz, G. A. Alves, E. Coelho, C. Hensel, T. Menezes De Oliveira, A. Moraes, P. Rebello Teles, Rebello Teles, Patricia, W. L. Aldá Júnior, M. Alves Gallo Pereira, M. Barroso Ferreira Filho, H. Brandao Malbouisson, Wagner Carvalho, Jose Chinellato, E. M. Da Costa, G. G. Da Silveira, D. De Jesus Damião, S. Fonseca De Souza, J. Martins
Abstract
Since the initial data taking of the CERN LHC, the CMSexperiment has undergone substantial upgrades and improvements. Thispaper discusses the CMS detector as it is configured for the thirddata-taking period of the CERN LHC, Run 3, which started in2022. The entire silicon pixel tracking detector was replaced. A newpowering system for the superconducting solenoid was installed. Theelectronics of the hadron calorimeter was upgraded. All the muonelectronic systems were upgraded, and new muon detector stationswere added, including a gas electron multiplier detector. Theprecision proton spectrometer was upgraded. The dedicated luminositydetectors and the beam loss monitor were refurbished. Substantialimprovements to the trigger, data acquisition, software, andcomputing systems were also implemented, including a new hybridCPU/GPU farm for the high-level trigger.