Hidden flavor symmetries of SO(10) GUT
The Yukawa interactions of the SO(10) GUT with fermions in 16-plets (as well as with singlets) have certain intrinsic (“built-in”) symmetries which do not depend on the model parameters. Thus, the symmetric Yukawa interactions of the 10 and 126 dimensional Higgses have intrinsic discrete Z2×Z2 symme...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2016-08-01
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| Series: | Nuclear Physics B |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0550321316301626 |
| _version_ | 1818247917340721152 |
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| author | Borut Bajc Alexei Yu. Smirnov |
| author_facet | Borut Bajc Alexei Yu. Smirnov |
| author_sort | Borut Bajc |
| collection | DOAJ |
| description | The Yukawa interactions of the SO(10) GUT with fermions in 16-plets (as well as with singlets) have certain intrinsic (“built-in”) symmetries which do not depend on the model parameters. Thus, the symmetric Yukawa interactions of the 10 and 126 dimensional Higgses have intrinsic discrete Z2×Z2 symmetries, while the antisymmetric Yukawa interactions of the 120 dimensional Higgs have a continuous SU(2) symmetry. The couplings of SO(10) singlet fermions with fermionic 16-plets have U(1)3 symmetry. We consider a possibility that some elements of these intrinsic symmetries are the residual symmetries, which originate from the (spontaneous) breaking of a larger symmetry group Gf. Such an embedding leads to the determination of certain elements of the relative mixing matrix U between the matrices of Yukawa couplings Y10, Y126, Y120, and consequently, to restrictions of masses and mixings of quarks and leptons. We explore the consequences of such embedding using the symmetry group conditions. We show how unitarity emerges from group properties and obtain the conditions it imposes on the parameters of embedding. We find that in some cases the predicted values of elements of U are compatible with the existing data fits. In the supersymmetric version of SO(10) such results are renormalization group invariant. |
| first_indexed | 2024-12-12T15:12:19Z |
| format | Article |
| id | doaj.art-71a4063ce4654e428ad0a71106c0d18d |
| institution | Directory Open Access Journal |
| issn | 0550-3213 1873-1562 |
| language | English |
| last_indexed | 2024-12-12T15:12:19Z |
| publishDate | 2016-08-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Nuclear Physics B |
| spelling | doaj.art-71a4063ce4654e428ad0a71106c0d18d2022-12-22T00:20:35ZengElsevierNuclear Physics B0550-32131873-15622016-08-01909C95497910.1016/j.nuclphysb.2016.06.020Hidden flavor symmetries of SO(10) GUTBorut Bajc0Alexei Yu. Smirnov1J. Stefan Institute, 1000 Ljubljana, SloveniaMax-Planck-Institut für Kernphysik, Saupfercheckweg 1, D-69117 Heidelberg, GermanyThe Yukawa interactions of the SO(10) GUT with fermions in 16-plets (as well as with singlets) have certain intrinsic (“built-in”) symmetries which do not depend on the model parameters. Thus, the symmetric Yukawa interactions of the 10 and 126 dimensional Higgses have intrinsic discrete Z2×Z2 symmetries, while the antisymmetric Yukawa interactions of the 120 dimensional Higgs have a continuous SU(2) symmetry. The couplings of SO(10) singlet fermions with fermionic 16-plets have U(1)3 symmetry. We consider a possibility that some elements of these intrinsic symmetries are the residual symmetries, which originate from the (spontaneous) breaking of a larger symmetry group Gf. Such an embedding leads to the determination of certain elements of the relative mixing matrix U between the matrices of Yukawa couplings Y10, Y126, Y120, and consequently, to restrictions of masses and mixings of quarks and leptons. We explore the consequences of such embedding using the symmetry group conditions. We show how unitarity emerges from group properties and obtain the conditions it imposes on the parameters of embedding. We find that in some cases the predicted values of elements of U are compatible with the existing data fits. In the supersymmetric version of SO(10) such results are renormalization group invariant.http://www.sciencedirect.com/science/article/pii/S0550321316301626 |
| spellingShingle | Borut Bajc Alexei Yu. Smirnov Hidden flavor symmetries of SO(10) GUT Nuclear Physics B |
| title | Hidden flavor symmetries of SO(10) GUT |
| title_full | Hidden flavor symmetries of SO(10) GUT |
| title_fullStr | Hidden flavor symmetries of SO(10) GUT |
| title_full_unstemmed | Hidden flavor symmetries of SO(10) GUT |
| title_short | Hidden flavor symmetries of SO(10) GUT |
| title_sort | hidden flavor symmetries of so 10 gut |
| url | http://www.sciencedirect.com/science/article/pii/S0550321316301626 |
| work_keys_str_mv | AT borutbajc hiddenflavorsymmetriesofso10gut AT alexeiyusmirnov hiddenflavorsymmetriesofso10gut |