(+22) 553 28 56The Nobel Prize in Physics 2013
Nobel Prize 2013
The Nobel Prize in Physics 2013 was awarded jointly to François Englert and Peter W. 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"
Works of François Englert and Peter W. Higgs, R. Brout, G. Guralnik, C. Hagen and T. Kibble [1] fundamentally contributed to the creation of the Standard Model (SM) of Electroweak Interactions. They enabled the construction of a model which is theory with gauge symmetry and at the same time it assumes the existence of vector (spin 2) heavy bosons that meditate weak interactions. The existence of the field and the scalar (spin 0) Higgs particle is the consequence of the proposed boson mass generation mechanism. It was discovered that interactions with the Higgs field can generate the fermions mass (quarks and leptons). The discovery of such particle was announced on July 4, 2012 during a joint seminar at CERN and ‘ICHEP 2012’ conference which took place in Melbourne. Scientists working in the CSM group (Compact Muon Solenoid) and ATLAS presented the preliminary results of the search for the Higgs boson based on experimental data collected before June 2012. [2] The discovery of a new boson (a particle with a full spin and mass of ) was recently announced. Currently, after collecting and analyzing more data, it seems certain that the observed boson is in fact the predicted Higgs particle.
References:
1. F. Englert and R. Brout, “Broken symmetry and the mass of gauge vector mesons”, Phys.Rev. Lett. 13 (1964) 321–323, P.W. Higgs, “Broken symmetries and the masses of gauge bosons”, Phys. Rev. Lett. 13 (1964) 508–509, G. Guralnik, C. Hagen, and T. W. B. Kibble, “Global conservation laws and massless particles”, Phys. Rev. Lett. 13 (1964) 585–587,
2. The Seminar ``Latest update in the search for the Higgs boson'' w CERN 4.VII.2012:
- J. Incandela, http://cms.web.cern.ch/news/observation-new-particle-mass-125-gev http://indico.cern.ch/event/197461/
- F. Gianotti, http://www.atlas.ch/news/2012/latest-results-from-higgs-search.html http://indico.cern.ch/event/197461/
Bohdan Grządkowski
Institute of Theoretical Physics
Institute of Physics
Warsaw University