Part of the CMS group at the LLR on the occasion of the EPS-HEP 2013 Prize and the 2013 Physics Nobel prize for the Higgs boson’s discovery.
Technical staff with previous and current CMS-LLR group leaders (2011)
Alveolar from the LLR for the ECAL (1990s)
The TCC68 Trigger car for the ECAL, one of LLR’s major technical achievements.
LLR researcher A. Zabi, with students and postdocs from the LLR, during commissioning in 2015.
The LLR group has been a member of CMS since its foundation in the early 1990s. For the past ten years, the group has consisted of about 25 people, with 12 permanent physicists, three to five post-docs, four to six PhD students, a few visitors, and engineers.
From the beginning the LLR group has mostly been involved in the Electromagnetic Calorimeter (ECAL) and the Trigger systems, with contributions to the mechanics and electronics of the ECAL, as well as the design, building and operation of the ECAL Level-1 Trigger system. The group also developed the reconstruction tools for electrons combining ECAL and Silicon Tracker information.
The LLR group is currently involved in CMS’s High-Granularity Calorimeter (HGCAL) project for High-Luminosity LHC on mechanics, trigger and reconstruction, and has joined with engineers of the Omega laboratory from Ecole Polytechnique for the HGCAL front-end electronics. The group’s main physics interests cover both proton-proton (pp) and heavy-ion (AA) collisions. In pp collisions, the focus is on the new scalar sector and its role in the electroweak symmetry breaking, unitarisation of the theory, and supersymmetry. This includes the discovery and properties of the Higgs boson, di-Higgs production, and weak-boson scattering at the TeV scale. In AA collisions, the group has a vast programme including quarkonium melting and jet quenching.
About Laboratoire Leprince-Ringuet, Ecole Polytechnique, Université Paris-Saclay
From: France
CMS member since: 1992
Website: http://polywww.in2p3.fr/-cms-45-