The LHC began its 2012 run in early April, colliding protons at a world-record centre-of-mass energy of 8 TeV[1]. In just over two months, CMS has recorded more data than in the 2011 run. As of the short technical stop starting June 18, the LHC…

*** draft *** draft *** draft *** ICHEP agenda CMS contributions Media enquiries: CERN Press Office This page shows new CMS results presented at the International Conference on High-Energy Physics (ICHEP) during 4—11 July 2012 in Melbourne,…

Learner Objectives for Masterclass These are educational goals for students participating in the masterclass. Describe/show how conservation laws, behavior of particles in a magnetic field and energy-mass conversion apply to particle physics.…

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While the LHC will play the starring role in the 2013/2014 Long Shutdown (LS1), the break will also be a chance for its experiments to upgrade their detectors. CMS will be expanding its current muon detection systems, fitting 72 new cathode strip…

The search for microscopic black holes at the LHC is motivated by the hierarchy problem — the huge observed difference between the strengths of the electroweak and gravitational forces. The ADD model (Arkani-Hamed, Dimopoulos, and Dvali) offers an…

On request of the FSQ PAG a run with very low pile-up (PU = 0.037) was taken for minimum bias and underlying event studies. Trigger information was exchanged between CMS and TOTEM and a common dataset has been obtained.

A measurement of the underlying event (UE) activity in proton-proton collisions at a centre-of-mass energy of 7 TeV is performed using Drell-Yan events in a data sample corresponding to an integrated luminosity of 2.2 fb−1 (inverse femtobarns),…

Another day, another particle. Unlike the Higgs boson, the neutral Xi_b baryon is not expected to solve any deep, outstanding mysteries. But, sightings of its excited state are another first for the Large Hadron Collider (LHC) at CERN near Geneva,…

Researchers at the Large Hadron Collider submitted a paper to Physical Review Letters claiming that they’d discovered a new Baryon particle. This is the Xi_b^*0 – which is composed of three quarks: a strange quark, a beauty quark, and an up quark.

A never-before-seen subatomic particle has popped into existence inside the world's largest atom smasher, bringing physicists a step closer to unraveling the mystery of how matter is put together in the universe.

Physicists using the Large Hadron Collider (LHC) particle accelerator have discovered their first brand-new baryon, a particle consisting of three quarks.