Nucleon decay as a probe of flavor symmetry: the case of fake unification
Abstract This paper explores nucleon decay within the framework of a “fake Grand Unified Theory (GUT)” combined with the Froggatt-Nielsen (FN) mechanism. In this fake GUT framework, quarks and leptons may have distinct high-energy origins but fit into complete SU(5) multiplets at low energies withou...
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| Format: | Article |
| Language: | English |
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SpringerOpen
2025-03-01
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| Series: | Journal of High Energy Physics |
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| Online Access: | https://doi.org/10.1007/JHEP03(2025)044 |
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| author | Masahiro Ibe Satoshi Shirai Keiichi Watanabe |
| author_facet | Masahiro Ibe Satoshi Shirai Keiichi Watanabe |
| author_sort | Masahiro Ibe |
| collection | DOAJ |
| description | Abstract This paper explores nucleon decay within the framework of a “fake Grand Unified Theory (GUT)” combined with the Froggatt-Nielsen (FN) mechanism. In this fake GUT framework, quarks and leptons may have distinct high-energy origins but fit into complete SU(5) multiplets at low energies without requiring force unification, setting it apart from conventional GUTs. By introducing flavor symmetry through the FN mechanism, the model addresses the flavor puzzle of quark and lepton mass hierarchies and mixing patterns. Our analysis demonstrates that nucleon decay rates and branching fractions in the fake GUT are sensitive to flavor symmetry, providing a means to distinguish it from conventional GUT predictions. These findings underscore the importance of nucleon decay searches in probing both baryon number violation and the underlying flavor structure. |
| format | Article |
| id | doaj-art-c5f442c22cd24d1996b2285cb0f01df8 |
| institution | DOAJ |
| issn | 1029-8479 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj-art-c5f442c22cd24d1996b2285cb0f01df82025-08-20T03:10:17ZengSpringerOpenJournal of High Energy Physics1029-84792025-03-012025312110.1007/JHEP03(2025)044Nucleon decay as a probe of flavor symmetry: the case of fake unificationMasahiro Ibe0Satoshi Shirai1Keiichi Watanabe2ICRR, The University of TokyoKavli Institute for the Physics and Mathematics of the Universe (WPI), The University of Tokyo Institutes for Advanced Study, The University of TokyoICRR, The University of TokyoAbstract This paper explores nucleon decay within the framework of a “fake Grand Unified Theory (GUT)” combined with the Froggatt-Nielsen (FN) mechanism. In this fake GUT framework, quarks and leptons may have distinct high-energy origins but fit into complete SU(5) multiplets at low energies without requiring force unification, setting it apart from conventional GUTs. By introducing flavor symmetry through the FN mechanism, the model addresses the flavor puzzle of quark and lepton mass hierarchies and mixing patterns. Our analysis demonstrates that nucleon decay rates and branching fractions in the fake GUT are sensitive to flavor symmetry, providing a means to distinguish it from conventional GUT predictions. These findings underscore the importance of nucleon decay searches in probing both baryon number violation and the underlying flavor structure.https://doi.org/10.1007/JHEP03(2025)044Baryon/Lepton Number ViolationFlavour SymmetriesGrand Unification |
| spellingShingle | Masahiro Ibe Satoshi Shirai Keiichi Watanabe Nucleon decay as a probe of flavor symmetry: the case of fake unification Journal of High Energy Physics Baryon/Lepton Number Violation Flavour Symmetries Grand Unification |
| title | Nucleon decay as a probe of flavor symmetry: the case of fake unification |
| title_full | Nucleon decay as a probe of flavor symmetry: the case of fake unification |
| title_fullStr | Nucleon decay as a probe of flavor symmetry: the case of fake unification |
| title_full_unstemmed | Nucleon decay as a probe of flavor symmetry: the case of fake unification |
| title_short | Nucleon decay as a probe of flavor symmetry: the case of fake unification |
| title_sort | nucleon decay as a probe of flavor symmetry the case of fake unification |
| topic | Baryon/Lepton Number Violation Flavour Symmetries Grand Unification |
| url | https://doi.org/10.1007/JHEP03(2025)044 |
| work_keys_str_mv | AT masahiroibe nucleondecayasaprobeofflavorsymmetrythecaseoffakeunification AT satoshishirai nucleondecayasaprobeofflavorsymmetrythecaseoffakeunification AT keiichiwatanabe nucleondecayasaprobeofflavorsymmetrythecaseoffakeunification |