Around the one-year anniversary of the first COVID-19 lockdown in Switzerland, physicists and engineers working on the Compact Muon Solenoid (CMS) experiment closed the case on an elusive problem affecting the operation of the Hadron Calorimeter (…

Congratulations to CMS members who have received the CMS Award for 2020!  As is the tradition, every year during the February CMS week, members of the CMS collaboration are presented with awards for their incredible contributions and dedication…

  The year 2020 is coming to an end; despite its exceptional difficulties and challenges caused by the world-wide COVID-19 pandemic, the CMS collaboration reached many important milestones during this period. This overview gives a brief glimpse…

The CMS experiment at CERN has released into the public domain its first batches of open data from heavy-ion collisions at the Large Hadron Collider. The two batches contain two datasets from 2010 and four from 2011, recorded during the LHC’s first…

After the Large Hadron Collider (LHC) was shut down in December 2018 following the successful completion of RUN 2 operation (2015-2018), CMS is undergoing an intensive upgrade and maintenance program during the current 3-years break (“Long Shutdown…

On November 24th, the CMS collaboration at CERN's Large Hadron Collider announced the publication of the 1000th paper in a peer-review journal, a truly exceptional achievement for a single Experiment. A thousand published papers, more than 100 per…

Professor Geoffrey Hall from Imperial London College has won the James Chadwick Medal and Prize. This award is granted by the Institute of Physics (IoP) for distinguished contributions in particle physics.  Geoffrey has devoted much of his…

CMS has just finished wrapping the barrel with a new layer which is not a new detector but a brand new protection system aimed to keep the outer barrel muon chambers shielded from background radiation present in the experimental cavern during…

When visitors at CMS enter the cavern and see the detector in all its beauty, they often ask how it has been possible to fit everything together and to make it work as a singular instrument. When the detector is in an open configuration, typically…

Congratulations to three scientists and CMS members, Emanuela Barberis, Kevin Burkett and Karl M. Ecklund who have been elected as American Physical Society (APS) Fellows in 2020 for their exceptional contributions to the field of physics.…

  Congratulations to the winners of the CMS Young Researchers Prize 2020! The prize is intended to recognize outstanding achievements of young members of CMS. It is awarded annually to at least three members who have made a very significant and…

The CMS experiment has a new leadership team. Starting from 1 September 2020 until August 2022, the new spokesperson Luca Malgeri and the two deputies Gautier Hamel de Monchenault and Jim Olsen will lead more than 5000 people for the CMS…