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Dirac equation

Dirac equation. Majorana equation. LRSM ( = Left-Right Symmetric Model ) Восстанавливает зеркальную симметрию при высоких энергиях и описывает механизм ее нарушения при низких Объясняет, почему известные нам нейтрино легкие ,

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Dirac equation

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  1. Dirac equation Majorana equation

  2. LRSM (= Left-Right Symmetric Model ) • Восстанавливает зеркальную симметрию при • высоких энергияхи описывает механизм ее • нарушения при низких • Объясняет, почему известные нам нейтрино легкие, • хотя и ненулевой массы (через See-Saw mechanism) • Объясняет бариогенезис в ранней вселенной через • лептогенезис • Дает пищу для спекуляций о природе темной материи Л.Б.Окунь, обзор в УФН, т. 177, n.4 (2007 г.), 250 ссылок

  3. Basic structure of the LRSM: Lepton doublets Quark doublets Fundamental scalars (higgses)

  4. thanks to the Yukawa term The value of is tightly bound by the parameter:

  5. The see-saw mass matrix of neutrinos

  6. Experimental constraints Direct search at D0 : WR mass > 750 GeV, assuming WR could decay to lepton or quark pairs (channel with heavy Mayorana neutrino was not considered) Analysis of contribution of right-handed currents to the KL- KS mass difference: WR mass > 1.6 TeV. But this lower limit is subject to large higher order QCD corrections. Flavor Changing Neutral Currents

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