On the IR/UV flavour connection in non-universal axion models
Abstract Non-universal axion models, with the Peccei-Quinn (PQ) symmetry acting on Standard Model (SM) fermions in a generation-dependent way, are typically accompanied by two different sources of flavour violation, dubbed here as infrared (IR) and ultraviolet (UV). The former is due to the flavour...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2023-06-01
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| Series: | Journal of High Energy Physics |
| Subjects: | |
| Online Access: | https://doi.org/10.1007/JHEP06(2023)046 |
| _version_ | 1797675798276079616 |
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| author | Luca Di Luzio Alfredo Walter Mario Guerrera Xavier Ponce Díaz Stefano Rigolin |
| author_facet | Luca Di Luzio Alfredo Walter Mario Guerrera Xavier Ponce Díaz Stefano Rigolin |
| author_sort | Luca Di Luzio |
| collection | DOAJ |
| description | Abstract Non-universal axion models, with the Peccei-Quinn (PQ) symmetry acting on Standard Model (SM) fermions in a generation-dependent way, are typically accompanied by two different sources of flavour violation, dubbed here as infrared (IR) and ultraviolet (UV). The former is due to the flavour violating axion couplings to SM fermions, while the latter arises from the heavy degrees of freedom that UV complete the axion effective field theory. We point out that these two sources of flavour violation are directly related and exemplify this connection in a general class of non-universal axion model, based on a renormalizable DFSZ-like setup with two Higgs doublets (PQ-2HDM). We next discuss the interplay of axion flavour phenomenology with the signatures stemming from the heavy radial modes of the PQ-2HDM, including meson oscillation observables and charged lepton flavour violating decays. We emphasize the strong complementarity between flavour observables, LHC direct searches and standard axion physics. |
| first_indexed | 2024-03-11T22:19:55Z |
| format | Article |
| id | doaj.art-62507c1733204c239ea334f884119618 |
| institution | Directory Open Access Journal |
| issn | 1029-8479 |
| language | English |
| last_indexed | 2024-03-11T22:19:55Z |
| publishDate | 2023-06-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj.art-62507c1733204c239ea334f8841196182023-09-24T11:06:59ZengSpringerOpenJournal of High Energy Physics1029-84792023-06-012023613810.1007/JHEP06(2023)046On the IR/UV flavour connection in non-universal axion modelsLuca Di Luzio0Alfredo Walter Mario Guerrera1Xavier Ponce Díaz2Stefano Rigolin3Istituto Nazionale di Fisica Nucleare (INFN), Sezione di PadovaIstituto Nazionale di Fisica Nucleare (INFN), Sezione di PadovaIstituto Nazionale di Fisica Nucleare (INFN), Sezione di PadovaIstituto Nazionale di Fisica Nucleare (INFN), Sezione di PadovaAbstract Non-universal axion models, with the Peccei-Quinn (PQ) symmetry acting on Standard Model (SM) fermions in a generation-dependent way, are typically accompanied by two different sources of flavour violation, dubbed here as infrared (IR) and ultraviolet (UV). The former is due to the flavour violating axion couplings to SM fermions, while the latter arises from the heavy degrees of freedom that UV complete the axion effective field theory. We point out that these two sources of flavour violation are directly related and exemplify this connection in a general class of non-universal axion model, based on a renormalizable DFSZ-like setup with two Higgs doublets (PQ-2HDM). We next discuss the interplay of axion flavour phenomenology with the signatures stemming from the heavy radial modes of the PQ-2HDM, including meson oscillation observables and charged lepton flavour violating decays. We emphasize the strong complementarity between flavour observables, LHC direct searches and standard axion physics.https://doi.org/10.1007/JHEP06(2023)046Axions and ALPsMulti-Higgs ModelsFlavour SymmetriesLepton Flavour Violation (charged) |
| spellingShingle | Luca Di Luzio Alfredo Walter Mario Guerrera Xavier Ponce Díaz Stefano Rigolin On the IR/UV flavour connection in non-universal axion models Journal of High Energy Physics Axions and ALPs Multi-Higgs Models Flavour Symmetries Lepton Flavour Violation (charged) |
| title | On the IR/UV flavour connection in non-universal axion models |
| title_full | On the IR/UV flavour connection in non-universal axion models |
| title_fullStr | On the IR/UV flavour connection in non-universal axion models |
| title_full_unstemmed | On the IR/UV flavour connection in non-universal axion models |
| title_short | On the IR/UV flavour connection in non-universal axion models |
| title_sort | on the ir uv flavour connection in non universal axion models |
| topic | Axions and ALPs Multi-Higgs Models Flavour Symmetries Lepton Flavour Violation (charged) |
| url | https://doi.org/10.1007/JHEP06(2023)046 |
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