Topic

The Higgs boson

On 4 July 2012, the ATLAS and CMS experiments at CERN's Large Hadron Collider announced they had each observed a new particle in the mass region around 126 GeV. This particle is consistent with the Higgs boson but it will take further work to determine whether or not it is the Higgs boson predicted by the Standard Model. The Higgs boson, as proposed within the Standard Model, is the simplest manifestation of the Brout-Englert-Higgs mechanism. Other types of Higgs bosons are predicted by other theories that go beyond the Standard Model.

On 8 October 2013 the Nobel prize in physics was awarded jointly to François Englert and Peter Higgs "for the theoretical discovery of a mechanism that contributes to our understanding of the origin of mass of subatomic particles, and which recently was confirmed through the discovery of the predicted fundamental particle, by the ATLAS and CMS experiments at CERN's Large Hadron Collider."

Featured updates on this topic

19 Dec 2013 – Higgs boson decays, a Nobel prize for Higgs and Englert and a huge Open Days event were among the big stories at CERN this year

27 Nov 2013 – The ATLAS experiment at CERN has found evidence for the Higgs boson decaying to two tau particles

8 Oct 2013 – The 2013 Nobel prize in physics has been awarded to François Englert and Peter Higgs for their theoretical work on the Higgs boson

7 May 2013 – Physicists from the ATLAS and CMS collaborations explain how they came to identify the new particle of 2012 as "a Higgs boson"

14 Mar 2013 – With two and a half times more data analysed than in July last year, ATLAS and CMS find that the new particle looks more and more like a Higgs boson

Updates

7 Jul 2014 – At ICHEP in Valencia, Spain, all four LHC experiments presented new results from the LHC’s first run. Run 2 physics holds much promise

23 Jun 2014 – Results reported by ATLAS and CMS discuss the decay of Higgs bosons directly to fermions, the particles that make up matter

19 May 2014 – Teach the machines: CERN launches competition to develop machine-learning analysis techniques for Higgs data

31 Mar 2014 – At the Moriond conference CMS presented the best constraint yet of the Higgs boson “width”, a parameter that determines the particle’s lifetime

10 Mar 2014 – On his first trip to CERN since sharing the Nobel prize in physics last year with Peter Higgs, François Englert talks Higgs bosons and supersymmetry

26 Feb 2014 – Watch François Englert explain the equations for the Brout-Englert-Higgs mechanism that gives particles mass, with the help of a blackboard

3 Dec 2013 – The CMS collaboration have measured the decay of the Higgs boson to pairs of bottom quarks and to pairs of tau leptons

25 Oct 2013 – CERN, along with Peter Higgs and François Englert, today receives the Prince of Asturias Award during a ceremony in Spain

9 Oct 2013 – Cameras were rolling in CERN's building 40 when members of the ATLAS and CMS collaborations heard the news from Stockholm live yesterday

4 Jul 2013 – In the first year after the discovery of the Higgs boson, physicists from ATLAS and CMS have been busy studying the properties of the new particle