In our Universe today, quarks are always bound together by gluons to form "composite" particles such as protons and neutrons. The Quark-Gluon Plasma, or QGP, often described as a soup-like medium, is a hot, dense state in which these quarks and…

The CMS experiment has made several unique measurements using data from LHC collisions of lead nuclei (PbPb, November 2010) at centre-of-mass energies of 2.76 TeV per nucleon pair. Phenomena measured for the first time in nucleus-nucleus collisions…

The paper, accepted for publication in Physical Review D in April, presents the first measurement of Υ (Upsilon) production at a centre-of-mass collision energy of 7 TeV at the LHC. It is also the first analysis from CMS to be accepted for…

Maurizio Pierini has been with CMS since he first started work at CERN in 2007. He tells us about his work, his interests, and why physics is such a big part of his life. Watch movie

The Alpha Magnetic Spectrometer (AMS) experiment, designed to study dark matter and anti-matter from the International Space Station, launched successfully aboard the Endeavour shuttle from NASA’s Kennedy Space Center on 16th May, 2011…

Experimentalists at the Large Hadron Collider recently proved effective a simple, new method of looking for evidence of supersymmetry. The method addresses a challenge particle physicists often face in looking for new particles and processes: They…

At 13:25 on Sunday, 13th March, Deputy Run Coordinator, Luca Malgeri told CMS Times: “The current beam is going to be dumped soon, and the next fill is for collisions.” The LHC had its first stable beams of 2011 a little after 18:00…

I am very happy to announce to you all a nice coincidence of events that happened on Friday. During the last one of a long series of approval meetings on 2010 data I have received the news from the P5 crew that CMS was recording the first 2011…

The CMS Collaboration at CERN released a paper today entitled "First Measurement of W+W− Production and Search for Higgs Boson in pp Collisions at √s = 7 TeV". The paper is the first produced by CMS that includes searches for the Higgs boson at the…

The Compact Muon Solenoid (CMS) Collaboration at CERN’s Large Hadron Collider (LHC) has announced the results of the search for supersymmetry (SUSY) in events with jets and missing transverse energy. The search is based on data accumulated by the…

At the turn of the year, the Tracker management baton passed from GianMario Bilei (picture, at right) to Karl Aaron Gill (picture, at left), who will be the Tracker Project Manager for 2011-2012. GianMario's two-year term started on January 1st,…

The CMS experiment at CERN's Large Hadron Collider (LHC) has completed a search for microscopic black holes produced in high-energy proton-proton collisions. No evidence for their production was found and their production has been excluded up to a…