Physics
Scientific paper
Jul 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aipc.1150...25h&link_type=abstract
FRONTIERS IN PHYSICS: 3rd International Meeting. AIP Conference Proceedings, Volume 1150, pp. 25-30 (2009).
Physics
Standard-Model Higgs Bosons, Theory Of Quantized Fields, Fermion Systems And Electron Gas, Neutrino Mass And Mixing, Phase Transitions: General Studies, Quark And Lepton Masses And Mixing
Scientific paper
Nowadays we know that, in our Universe, dark matter occupies about 25% of the content, compared to only 5% of the ``visible'' ordinary matter. In this talk, we propose that the description of dark matter would be an extension of the Standard Model-a gauge theory. We all know that in the Standard Model we have three generations but still don't know why-the so-called ``family problem.'' On other hand, in view of the masses and oscillations, the neutrinos now present some basic difficulty in the Standard Model. Thus, I propose that on top of the SUc(3)×SU(2)×U(1) standard model there is an SUf(3) extension-a simple SUc(3)×SU(2)×U(1)×SUf(3) extended standard model. The family gauge bosons (familons) are massive through the so-called ``colored'' Higgs mechanism while the remaining Higgs particles are also massive. The three neutrinos, the electron-like, muon-like, and tao-like neutrinos, form the basic family triplets. Hopefully all the couplings to the ``visible'' matter are through the neutrinos, explaining why the dark matter is more than the visible matter in our Universe.
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