Interesting radiative patterns of neutrino mass in anSU(3)C⊗SU(3)L⊗U(1)Xmodel with right-handed neutrinos
作者： Darwin Chang , Hoang Ngoc Long
DOI: 10.1103/PHYSREVD.73.053006
关键词: Sterile neutrino 、 Seesaw mechanism 、 Particle physics 、 Invariant mass 、 Massless particle 、 Mass matrix 、 Higgs boson 、 Physics 、 Neutrino 、 Coupling (probability) 、 Nuclear and High Energy Physics
摘要: We investigate a simple model of neutrino mass based on $\mathrm{SU}(3{)}_{C}\ensuremath{\bigotimes}\mathrm{SU}(3{)}_{L}\ensuremath{\bigotimes}\mathrm{U}(1{)}_{X}$ gauge unification. The Yukawa coupling the has automatic lepton-number symmetry which is broken only by self-couplings Higgs boson. At tree level, spectrum contains three Dirac fermions, one massless and two degenerate in mass. two-loop neutrinos obtain Majorana masses correct tree-level result naturally gives rise to an inverted hierarchy pattern interesting mixing can fit current data with minor fine-tuning. In another scenario, pick scales such that loop-induced matrix bigger than thus reproduces usual seesaw mechanism.
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128.84.21.199参考文章(69)
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