A non-minimal ${\rm SO}(10) \times{\rm U}(1)_{\rm F}$ SUSY - GUT model obtained from a bottom-up approach

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• 作者：Carl H. Albright
• 刊名：The European Physical Journal C - Particles and Fields
• 出版年：1998
• 出版时间：February 1998
• 年：1998
• 卷：1
• 期：3-4
• 页码：657-667
• 全文大小：317 KB
• 刊物类别：Physics and Astronomy
• 刊物主题：Physics
  Elementary Particles and Quantum Field Theory
  Nuclear Physics, Heavy Ions and Hadrons
  Physics beyond the Standard Model
  Measurement Science and Instrumentation
  Astronomy, Astrophysics and Cosmology
  
• 出版者：Springer Berlin / Heidelberg
• ISSN：1434-6052

文摘

Many of the ingredients are explored which are needed to develop a supersymmetric SO(10) ×U(1)_FSO(10) \times U(1)_F grand unified model based on the Yukawa structure of a model previously constructed in collaboration with S. Nandi to explain the quark and lepton masses and mixings in a particular neutrino scenario. The U(1)_FU(1)_F family symmetry can be made anomaly-free with the introduction of one conjugate pair of SO(10)SO(10) -singlet neutrinos with the same U(1)_FU(1)_F charge. Due to a plethora of conjugate pairs of supermultiplets, the model develops a Landau singularity within a factor of 1.5 above the GUT scale. With the imposition of a Z₂Z_2 discrete symmetry and under certain conditions, all higgsino triplets can be made superheavy while just one pair of higgsino doublets remains light and results in mass matrix textures previously obtained from the bottom-up approach. Diametrically opposite splitting of the first and third family scalar quark and lepton masses away from the second family ones results from the nonuniversal D-term contributions.