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| Main Authors: | , , , , |
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| Format: | Preprint |
| Published: |
2025
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2503.11136 |
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| _version_ | 1866908325430427648 |
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| author | Hosotani, Yutaka Funatsu, Shuichiro Hatanaka, Hisaki Orikasa, Yuta Yamatsu, Naoki |
| author_facet | Hosotani, Yutaka Funatsu, Shuichiro Hatanaka, Hisaki Orikasa, Yuta Yamatsu, Naoki |
| contents | In the $SO(5) \times U(1) \times SU(3)$ gauge-Higgs unification in the Randall-Sundrum warped space the mixing in the $W$ couplings in the quark sector is induced by masses of $SO(5)$ singlet fermions which are responsible for splitting masses of down-type quarks from those of up-type quarks in each generation. We show that the observed Cabibbo-Kobayashi-Maskawa (CKM) matrix in the $W$ couplings is reproduced within experimental errors. Further flavor-changing neutral currents (FCNCs) in the quark sector are shown to be naturally suppressed. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2503_11136 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Origin of CKM matrix and natural FCNC suppression in gauge-Higgs unification Hosotani, Yutaka Funatsu, Shuichiro Hatanaka, Hisaki Orikasa, Yuta Yamatsu, Naoki High Energy Physics - Phenomenology In the $SO(5) \times U(1) \times SU(3)$ gauge-Higgs unification in the Randall-Sundrum warped space the mixing in the $W$ couplings in the quark sector is induced by masses of $SO(5)$ singlet fermions which are responsible for splitting masses of down-type quarks from those of up-type quarks in each generation. We show that the observed Cabibbo-Kobayashi-Maskawa (CKM) matrix in the $W$ couplings is reproduced within experimental errors. Further flavor-changing neutral currents (FCNCs) in the quark sector are shown to be naturally suppressed. |
| title | Origin of CKM matrix and natural FCNC suppression in gauge-Higgs unification |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2503.11136 |