Speaker
Prof.
Dezső Horváth
(Wigner RCP of the HAS)
Description
The Standard Model, the theory of particle physics, based on global and local gauge symmetries, was established 40 years ago and it seems to describe all experimental data very well. All of its elementary particles were identified and studied long ago apart from the Higgs boson. The two main experiments of the Large Hadron Collider at CERN, CMS and ATLAS in 2012 observed a new boson with properties close to those predicted for the Standard Model Higgs boson. The latest LHC results imply that the new boson is indeed the Standard Model Higgs boson and thereby prove the validity of the Brout-Englert-Higgs mechanism of spontaneous symmetry breaking. François Englert and Peter Higgs received the 2013 Nobel Prize in physics. There are several questions yet concerning the possible theoretical significance of the mass of the new particle.
