Project
Collaboration in the operation and physics data analysis at the CMS experiment at CERN

Code 2024.00238.CERN

Beneficiary Entity

LIP - Laboratório de Instrumentação e Física Experimental de Partículas

Project summary

The Compact Muon Solenoid (CMS) experiment at the LHC is a major scientific endeavour, and the research at the LHC is central to the quest for the fundamental physics laws of nature. LIP is member of the CMS Collaboration since its creation in 1992.The LIP-CMS group had a leading role in the design and construction of important components of the CMS detector, namely the Data Acquisition System of the ECAL sub-detector used for the measurement of electrons and photons and the Trigger System that performs the online selection of the interesting collisions. Since the LHC start-up in 2010, LIP made major contributions to the CMS physics program in particular: the discovery and characterization of a Higgs boson; measurements of the top quark properties; the first observation of rare Bs meson decays, studies of B-decays and Y states in pp and heavy ion collisions; measurement of the chi and upsilon polarizations; searches for a charged Higgs, a top squark, and for Dark Matter; search for exclusive processes. A group member served as Deputy Spokesperson of the Collaboration in 2012-13.The group contributed to the Phase-1 Upgrade of the experiment by building and installing new High-Speed Optical Links (oSLB-oRM) that interface the ECAL electronics to the trigger system. During the long shutdown LS2, the group was involved in the preparation of the PPS and the ECAL detectors.The group is leading the development of the forward Precision Proton Spectrometer (PPS) since its inception in 2014. PPS demonstrated -for the first time- the feasibility of operating a near-beam proton spectrometer at high luminosity on a regular basis. PPS took physics data integrated in CMS in 2015-18 and is continuing taking data in Run3 (since 2022). A member of the group is serving as PPS Project Coordinator.In 2024-25, the activities of the LIP-CMS group will be organized along three main lines:1) Proton-proton physics:The objective is to fully exploit the discovery opportunities offered by the LHC high energy and luminosity. The activity is organized in different physics domains, namely Higgs Physics, Top Quark Physics, B Physics, Quarkonia, Standard Model processes, and physics in central exclusive production (PPS). Each domain is led by a senior physicist and integrates researchers and students.2) Heavy-ion physics:The ultimate objective is the study of the quark-gluon plasma and the strong interaction, taking advantage of the collisions of heavy-ion beams at the LHC. The activity is led by a senior physicist and integrates researchers and students.3) Experiment operation and maintenance:The LIP-CMS group has people based at CERN that are required for the normal maintenance and operation of the PPS detector. The group has a dedicated electronics lab installed in the CERN campus used for R&D and maintenance work.

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Support under

Reforçar a investigação, o desenvolvimento tecnológico e a inovação

Region of Intervention

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