Activities
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Seminars
| Seminar on Theoretical and Computational Physics:
| | Title | Two viable models of SM fermion mass generation
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| Speaker | Dr. Antonio Enrique Cárcamo Hernández
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| Affiliation | Universidad Tecnica Federico Santa Maria, Valparaiso, Chile
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| Date | Tuesday, 18-04-2017
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| Time | 10:00 AM
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| Location | Meeting room, first floor, Institute of physics, 10 Dao Tan, Ba Dinh, Hanoi
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| Abstract | In the first part of my talk I will discuss the first multiscalar singlet extension of the Standard Model (SM), that generates tree level top quark and exotic fermion masses as well as one and three loop level masses for charged fermions lighter than the top quark and for light active neutrinos, respectively, without invoking electrically charged scalar fields. That model, which is based on the S3xZ8 discrete symmetry, successfully explains the observed SM fermion mass and mixing pattern. The second part of my talk is devoted to the discussion of the first model for radiatively generating the hierarchy of the Standard Model (SM) fermion masses:tree-level top quark mass; 1-loop bottom, charm, tau and muon masses; 2-loop masses for the light up, down and strange quarks as well as for the electron; and 4-loop masses for the light active neutrinos. That model is based on a softly-broken S3xZ2 discrete symmetry and has a scalar sector that consists only of one SM Higgs doublet and three electrically neutral SM-singlet scalars. The model features a viable scalar dark matter candidate.
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| Host person | Hoàng Ngọc Long
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