The challenge is that these particles are also produced in many other processes, plus the Higgs boson only appears in about one in a billion LHC collisions. But careful statistical analysis of enormous amounts of data uncovered the particle's faint signal in 2012.

The Higgs boson was discovered, almost 50 years after first being proposed, by the ATLAS and CMS collaborations at CERN in 2012. But why did it take so long to find it? With a mass of more than 120 times that of the proton, the Higgs boson is the second-heaviest particle known today.

May 4, 2020 · “When the LHC programme started, popular belief was that we would only see a Higgs boson after several years of data collection,” recounts Vivek Sharma, who co-led the CMS search when the LHC began operations. Sharma and his colleagues presented a plan to CMS in September 2010 of how to tackle the problem with half that data.

Geneva, 4 July 2022. Ten years ago, on July 4 2012, the ATLAS and CMS collaborations at the Large Hadron Collider (LHC) announced the discovery of a new particle with features consistent with those of the Higgs boson predicted by the Standard Model of particle physics. The discovery was a landmark in the history of science and captured the world’s attention. One year later it …

The search for the Higgs boson using the Large Hadron Collider (LHC) pushed the limits of technology. Extremely high energies were needed to accelerate particles to almost the speed of light, unprecedented detail and precision was needed to accurately detect the collisions of these particle beams, and unrivalled computing technology was needed ...

May 26, 2023 · The discovery of the Higgs boson at CERN’s Large Hadron Collider (LHC) in 2012 marked a significant milestone in particle physics. Since then, the ATLAS and CMS collaborations have been diligently investigating the properties of this unique particle and searching to establish the different ways in which it is produced and decays into other particles. At the Large Hadron …

Jul 4, 2020 · The second run of the LHC (2015–2018) was at an energy of 13 TeV and the large data volume collected allowed ATLAS and CMS to observe the interplay between the Higgs boson and the bottom quark, the top quark and the tau lepton. A candidate for a Higgs boson transforming into a b-quark and a b-antiquark (Image: ATLAS/CERN)

Pour le boson de Higgs, le champ est apparu en premier. Dans l’hypothèse proposée en 1964, il s’agissait d’un nouveau type de champ présent dans tout l’Univers et donnant une masse à toutes les particules élémentaires. Le boson de Higgs est une onde à l’intérieur de ce champ.

The Higgs boson decay into b quarks was also observed in 2018, six years after the discovery announcement, despite being the most likely: 58% of Higgs bosons decay to b quarks. But b quarks are produced in the LHC collisions in such numbers, that a search for a Higgs boson decay faced an overwhelming background, making the measurement extremely ...

Mar 30, 2023 · The discovery of the Higgs boson at the Large Hadron Collider (LHC) in 2012 was a triumph of theoretical and experimental physics, yet its implications are only just beginning to be understood. Precise measurements by the ATLAS and CMS collaborations show that this fundamental particle, which is responsible for generating the masses of elementary particles, …