The Clockwork Standard Model
Abstract We consider various bulk fields with general dilaton couplings in the linear dilaton background in five dimensions as the continuum limit of clockwork models. We show that the localization of the zero modes of bulk fields and the mass gap in the KK spectrum depend not only on the bulk dilat...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2020-09-01
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| Series: | Journal of High Energy Physics |
| Subjects: | |
| Online Access: | http://link.springer.com/article/10.1007/JHEP09(2020)005 |
| _version_ | 1818476724966391808 |
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| author | Yoo-Jin Kang Soonbin Kim Hyun Min Lee |
| author_facet | Yoo-Jin Kang Soonbin Kim Hyun Min Lee |
| author_sort | Yoo-Jin Kang |
| collection | DOAJ |
| description | Abstract We consider various bulk fields with general dilaton couplings in the linear dilaton background in five dimensions as the continuum limit of clockwork models. We show that the localization of the zero modes of bulk fields and the mass gap in the KK spectrum depend not only on the bulk dilaton coupling, but also on the bulk mass parameter in the case of a bulk fermion. The consistency from universality and perturbativity of gauge couplings constrain the dilaton couplings to the brane-localized matter fields as well as the bulk gauge bosons. Constructing the Clockwork Standard Model (SM) in the linear dilaton background, we provide the necessary conditions for the bulk mass parameters for explaining the mass hierarchy and mixing for the SM fermions. We can introduce a sizable expansion parameter ε = e − 2 3 kz c $$ {e}^{-\frac{2}{3}{kz}_c} $$ for the realistic flavor structure in the quark sector without a fine-tuning in the bulk mass parameters, but at the expense of a large 5D Planck scale. On the other hand, we can use a smaller expansion parameter for lepton masses, in favor of the solution to the hierarchy problem of the Higgs mass parameter. We found that massive Kaluza-Klein (KK) gauge bosons and massive KK gravitons couple more strongly to light and heavy fermions, respectively, so there is a complementarity in the resonance researches for those KK modes at the LHC. |
| first_indexed | 2024-12-10T09:28:59Z |
| format | Article |
| id | doaj.art-bd3c92500ff74f80a1be1f1fadc601d2 |
| institution | Directory Open Access Journal |
| issn | 1029-8479 |
| language | English |
| last_indexed | 2024-12-10T09:28:59Z |
| publishDate | 2020-09-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj.art-bd3c92500ff74f80a1be1f1fadc601d22022-12-22T01:54:25ZengSpringerOpenJournal of High Energy Physics1029-84792020-09-012020913410.1007/JHEP09(2020)005The Clockwork Standard ModelYoo-Jin Kang0Soonbin Kim1Hyun Min Lee2Department of Physics, Chung-Ang UniversityDepartment of Physics, Chung-Ang UniversityDepartment of Physics, Chung-Ang UniversityAbstract We consider various bulk fields with general dilaton couplings in the linear dilaton background in five dimensions as the continuum limit of clockwork models. We show that the localization of the zero modes of bulk fields and the mass gap in the KK spectrum depend not only on the bulk dilaton coupling, but also on the bulk mass parameter in the case of a bulk fermion. The consistency from universality and perturbativity of gauge couplings constrain the dilaton couplings to the brane-localized matter fields as well as the bulk gauge bosons. Constructing the Clockwork Standard Model (SM) in the linear dilaton background, we provide the necessary conditions for the bulk mass parameters for explaining the mass hierarchy and mixing for the SM fermions. We can introduce a sizable expansion parameter ε = e − 2 3 kz c $$ {e}^{-\frac{2}{3}{kz}_c} $$ for the realistic flavor structure in the quark sector without a fine-tuning in the bulk mass parameters, but at the expense of a large 5D Planck scale. On the other hand, we can use a smaller expansion parameter for lepton masses, in favor of the solution to the hierarchy problem of the Higgs mass parameter. We found that massive Kaluza-Klein (KK) gauge bosons and massive KK gravitons couple more strongly to light and heavy fermions, respectively, so there is a complementarity in the resonance researches for those KK modes at the LHC.http://link.springer.com/article/10.1007/JHEP09(2020)005Beyond Standard ModelField Theories in Higher DimensionsClassical Theories of Gravity |
| spellingShingle | Yoo-Jin Kang Soonbin Kim Hyun Min Lee The Clockwork Standard Model Journal of High Energy Physics Beyond Standard Model Field Theories in Higher Dimensions Classical Theories of Gravity |
| title | The Clockwork Standard Model |
| title_full | The Clockwork Standard Model |
| title_fullStr | The Clockwork Standard Model |
| title_full_unstemmed | The Clockwork Standard Model |
| title_short | The Clockwork Standard Model |
| title_sort | clockwork standard model |
| topic | Beyond Standard Model Field Theories in Higher Dimensions Classical Theories of Gravity |
| url | http://link.springer.com/article/10.1007/JHEP09(2020)005 |
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