The Electromagnetic Calorimeter (ECAL) group has tested the second enfourneur (pictured above), a highly specialized instrument that allows the insertion and extraction of key components of the CMS detector at CERN, the ECAL ‘supermodules’. Weighing…

CMS successfully carried out key tests for the lifting system needed in the construction of Hi Lumi CMS during the end of year stop 2025/2026. Four thin legs emerge from the floor of the CMS cavern to lift incredibly heavy parts of the CMS detector.…

The CMS Collaboration reports the first measurement of coherent ϕ meson photoproduction, establishing a powerful new tool to explore the dense nuclear matter in the transition regime from perturbative to nonperturbative QCD. The CMS Collaboration ha…