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05 Aug 2020 | Freya Blekman | Physics
At the ICHEP2020 conference, held virtually in Prague this summer, the CMS collaboration presented a new, precise analysis of the data enriched in the Higgs boson decays to four leptons. Simultaneous measurement of the Higgs boson production and...
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04 Aug 2020 | Freya Blekman | Physics
What if new particles modify the behaviour of existing particles, but by only a little bit? In a new result, CMS physicists search for new physics using a technique called Effective Field Theory to study the top quark in a "toy universe". We have...
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03 Aug 2020 | Freya Blekman | Physics
A new result released by the CMS Collaboration presents the first evidence of the Higgs boson interacting with the muon. The standard model of particle physics describes all the known fundamental particles in the Universe. A mystery of the standard...
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31 Jul 2020 | Freya Blekman | Physics
In 2012 the ATLAS and CMS collaborations discovered a boson with a mass of 125 GeV, i.e. approximately 125 times the mass of the proton, in proton-proton collisions at the CERN LHC. This has marked a milestone in high energy physics, as this...
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30 Jul 2020 | Freya Blekman | Physics
Measuring the interaction between the Higgs boson and other particles is essential to understand if the particle behaves consistently with predictions. For the International Conference of High Energy Physics 2020, the CMS experiment has released new...
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29 Jul 2020 | Freya Blekman | Physics
A question researchers at the LHC are trying to answer is whether the properties of the Higgs boson are as predicted by the standard model. One way to do this is to look for extremely rare decays of the Higgs boson, as physicists in the CMS...
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28 Jul 2020 | Freya Blekman | Physics
Eight years ago, at the largest International Conference on High Energy Physics (ICHEP), the discovery of a new particle carefully coined as Higgs boson-like was announced by the ATLAS and CMS Collaborations. They had seen an excess in data over...
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28 Jul 2020 | Freya Blekman | Physics
The Higgs boson is an extremely rare particle. At the Large Hadron Collider (LHC), where bunches of protons collide at more than 99.9999% of the speed of light up to forty million times per second, a Higgs is produced around once per second. The...
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27 Jul 2020 | Federica Baldassari | Collaboration
IUPAP Young Scientist Prize 2020 The International Union of Pure and Applied Physics (IUPAP) commission honoured CMS member Marco Lucchini with the Young Scientist Prize for 2020, “For his pioneering work in the development of fast crystal sensors...
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14 Jul 2020 | Federica Baldassari | Detector
The Compact Muon Solenoid (CMS) Muon System is undergoing major upgrades during Long Shutdown 2 (LS2), preparing for the High Luminosity LHC (HL-LHC). The Large Hadron Collider will be upgraded to significantly increase the luminosity (frequency of...
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05 Jul 2020 | Freya Blekman | Physics
In 2012 the CMS and ATLAS Collaborations announced the discovery of a new particle, that seems mostly consistent with the Higgs boson as predicted by the Standard Model. To understand if that is actually the case, physicists in the CMS collaboration...
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21 Jun 2020 | Freya Blekman | Collaboration
On Friday 19 June 2020, scientists at the CMS experiment at CERN's Large Hadron Collider submitted their 1,000th paper. This monumental achievement reflects an outstanding contribution to humanity's understanding of the universe — and it's just the...
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