01 Dec 2022
Imagine you are at a museum. After a long day admiring the exhibitions, you are exiting the museum. But to be able to get out, you will need to exit through the gift shop. The layout of the gift shop can be set up in several ways. Maybe you can take…
04 Nov 2022
It was a bit more than 10 years ago that together with our colleagues from the ATLAS experiment, we at CMS announced the discovery of this new (and quite amazing) particle. Now, detecting a new fundamental particle is no easy feat; in these 10 years…
24 Oct 2022
On 5 July 2022, the LHC surpassed the previous energy limits of experimental particle physics, breaking its own record by achieving stable proton-proton collisions at a center-of-mass energy of √s = 13.6 TeV. This marked the start of Run 3, the…
14 Oct 2022
What is the Universe made of? Searching for the answer to this question has been the main quest of particle physicists. Part of the answer is provided by the highly-successful Standard Model (SM) of particle physics, whose last achievement is the…
27 Sep 2022
While experimental results at the LHC continue to show good agreement with the standard model (SM), which is currently the best theory of fundamental particle interactions, the CMS physicists continue to turn up the heat on the SM. In fact, it is…
19 Sep 2022
The heaviest known particle, the top quark, is one of our main gateways to search for new phenomena that are not addressed by our existing knowledge, the standard model of particle physics (SM), either through precision measurements of the top…
12 Jul 2022
Have you heard of vector-like quarks? They are hypothetical particles which would provide an explanation to the value of the Higgs boson mass, which is still a mystery. Vector-like quarks are predicted by a variety of theories beyond the Standard…
11 Jul 2022
Rare events, such as a total solar eclipse or a supernova explosion, are fascinating and stimulate our imagination. In addition, such events may lead to discoveries expanding our ​​knowledge horizon. At the Large Hadron Collider (LHC), studies of…
08 Jul 2022
CMS has developed a new method to measure the properties of the top quark with high precision. It relies on an innovative way to cluster particles into jets.  The top quark is the most massive elementary particle we have discovered so far. Due to…
07 Jul 2022
The processes that are mostly studied at the LHC are caused by energetic collisions where the protons break up into their constituents, the quarks and gluons, which recombine to form composite hadrons. However, many proton-proton interactions result…
04 Jul 2022
Exactly ten years ago, on the 4th of July 2012, the ATLAS and CMS experiments announced the discovery of a new particle compatible with the long-sought Higgs boson.   This discovery takes us back to the events occurring in our early universe, just a…
22 Jun 2022
The LHC can be viewed not only as a hadron collider, but also as a boson collider. With the highest energies and collision rates ever, the LHC is pushing the limits of our understanding of rare processes such as W-photon scattering. The W bosons and…