One of the largest structures of CMS's future High Granularity Calorimeter (HGCAL) has successfully completed a demanding series of cold tests, marking an important milestone on the road to the High-Luminosity LHC and the next era of particle physics…

Hamamatsu Photonics K.K. was announced as the 2026 Industrial Award winner by the ATLAS and CMS Collaborations at a dedicated ceremony on 15 July. With this award, the ATLAS and CMS Collaborations recognise the crucial role Hamamatsu Photonics K.K. h…

As high-transverse momentum particles punch through the plasma formed from light ions, the CMS experiment sees a possible imprint from the initial shape of the collisions For the first time, CMS has observed both suppression of high transverse momen…