Hunting for ALPs with lepton flavor violation
Abstract We examine the low-energy signatures of axion-like particles (ALPs) in lep- ton flavor violating (LFV) processes. By using a dimension-5 effective Lagrangian, we compute the most general ALP contributions to LFV decays of leptons and mesons. The provided expressions are valid for any choice...
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| Format: | Article |
| Language: | English |
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SpringerOpen
2020-01-01
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| Series: | Journal of High Energy Physics |
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| Online Access: | https://doi.org/10.1007/JHEP01(2020)158 |
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| _version_ | 1823863476566622208 |
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| author | Claudia Cornella Paride Paradisi Olcyr Sumensari |
| author_facet | Claudia Cornella Paride Paradisi Olcyr Sumensari |
| author_sort | Claudia Cornella |
| collection | DOAJ |
| description | Abstract We examine the low-energy signatures of axion-like particles (ALPs) in lep- ton flavor violating (LFV) processes. By using a dimension-5 effective Lagrangian, we compute the most general ALP contributions to LFV decays of leptons and mesons. The provided expressions are valid for any choice of ALP mass and couplings. We explore the complementarity of different processes, identifying specific patterns to be experimentally tested. Constraints on LFV couplings are derived from existing data and prospects for forthcoming experiments are also discussed. As a by-product, we revisit the possibility of a simultaneous explanation of the observed discrepancies in the muon and electron g − 2 through ALP interactions. |
| format | Article |
| id | doaj-art-9bd6a0ea848543258e1faf085552e8ea |
| institution | Kabale University |
| issn | 1029-8479 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj-art-9bd6a0ea848543258e1faf085552e8ea2025-02-09T12:06:30ZengSpringerOpenJournal of High Energy Physics1029-84792020-01-012020114110.1007/JHEP01(2020)158Hunting for ALPs with lepton flavor violationClaudia Cornella0Paride Paradisi1Olcyr Sumensari2Physik-Institut, Universität ZürichIstituto Nazionale Fisica Nucleare, Sezione di Padova and Dipartamento di Fisica e Astronomia “G. Galilei”, Università degli Studi di PadovaIstituto Nazionale Fisica Nucleare, Sezione di Padova and Dipartamento di Fisica e Astronomia “G. Galilei”, Università degli Studi di PadovaAbstract We examine the low-energy signatures of axion-like particles (ALPs) in lep- ton flavor violating (LFV) processes. By using a dimension-5 effective Lagrangian, we compute the most general ALP contributions to LFV decays of leptons and mesons. The provided expressions are valid for any choice of ALP mass and couplings. We explore the complementarity of different processes, identifying specific patterns to be experimentally tested. Constraints on LFV couplings are derived from existing data and prospects for forthcoming experiments are also discussed. As a by-product, we revisit the possibility of a simultaneous explanation of the observed discrepancies in the muon and electron g − 2 through ALP interactions.https://doi.org/10.1007/JHEP01(2020)158Beyond Standard ModelEffective Field TheoriesHeavy Quark PhysicsKaon Physics |
| spellingShingle | Claudia Cornella Paride Paradisi Olcyr Sumensari Hunting for ALPs with lepton flavor violation Journal of High Energy Physics Beyond Standard Model Effective Field Theories Heavy Quark Physics Kaon Physics |
| title | Hunting for ALPs with lepton flavor violation |
| title_full | Hunting for ALPs with lepton flavor violation |
| title_fullStr | Hunting for ALPs with lepton flavor violation |
| title_full_unstemmed | Hunting for ALPs with lepton flavor violation |
| title_short | Hunting for ALPs with lepton flavor violation |
| title_sort | hunting for alps with lepton flavor violation |
| topic | Beyond Standard Model Effective Field Theories Heavy Quark Physics Kaon Physics |
| url | https://doi.org/10.1007/JHEP01(2020)158 |
| work_keys_str_mv | AT claudiacornella huntingforalpswithleptonflavorviolation AT parideparadisi huntingforalpswithleptonflavorviolation AT olcyrsumensari huntingforalpswithleptonflavorviolation |