Searching dark photons using displaced vertices at Belle II — with backgrounds
Abstract Dark photons in the MeV to GeV range with kinetic mixing of the order of ≲ 10 −4 − 10 −3 can be produced in significant numbers at low energy colliders such as Belle II. Their decay length can be macroscopic raising the hope for a fairly clean search via displaced vertices as proposed in [1...
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| Format: | Article |
| Language: | English |
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SpringerOpen
2024-08-01
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| Series: | Journal of High Energy Physics |
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| Online Access: | https://doi.org/10.1007/JHEP08(2024)062 |
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| _version_ | 1846158927034580992 |
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| author | Joerg Jaeckel Anh Vu Phan |
| author_facet | Joerg Jaeckel Anh Vu Phan |
| author_sort | Joerg Jaeckel |
| collection | DOAJ |
| description | Abstract Dark photons in the MeV to GeV range with kinetic mixing of the order of ≲ 10 −4 − 10 −3 can be produced in significant numbers at low energy colliders such as Belle II. Their decay length can be macroscopic raising the hope for a fairly clean search via displaced vertices as proposed in [1]. However, even this is not background free. Here, we calculate and discuss problematic backgrounds from displaced photon conversion and discuss their potential impact on the sensitivity. In addition we also briefly consider the dangers of prompt backgrounds. |
| format | Article |
| id | doaj-art-e7858cd9ebcd40849b87796798d69b12 |
| institution | Kabale University |
| issn | 1029-8479 |
| language | English |
| publishDate | 2024-08-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj-art-e7858cd9ebcd40849b87796798d69b122024-11-24T12:05:28ZengSpringerOpenJournal of High Energy Physics1029-84792024-08-012024812110.1007/JHEP08(2024)062Searching dark photons using displaced vertices at Belle II — with backgroundsJoerg Jaeckel0Anh Vu Phan1Institute for Theoretical Physics, Heidelberg UniversityInstitute for Theoretical Physics, Heidelberg UniversityAbstract Dark photons in the MeV to GeV range with kinetic mixing of the order of ≲ 10 −4 − 10 −3 can be produced in significant numbers at low energy colliders such as Belle II. Their decay length can be macroscopic raising the hope for a fairly clean search via displaced vertices as proposed in [1]. However, even this is not background free. Here, we calculate and discuss problematic backgrounds from displaced photon conversion and discuss their potential impact on the sensitivity. In addition we also briefly consider the dangers of prompt backgrounds.https://doi.org/10.1007/JHEP08(2024)062New Gauge InteractionsNew Light ParticlesSpecific BSM Phenomenology |
| spellingShingle | Joerg Jaeckel Anh Vu Phan Searching dark photons using displaced vertices at Belle II — with backgrounds Journal of High Energy Physics New Gauge Interactions New Light Particles Specific BSM Phenomenology |
| title | Searching dark photons using displaced vertices at Belle II — with backgrounds |
| title_full | Searching dark photons using displaced vertices at Belle II — with backgrounds |
| title_fullStr | Searching dark photons using displaced vertices at Belle II — with backgrounds |
| title_full_unstemmed | Searching dark photons using displaced vertices at Belle II — with backgrounds |
| title_short | Searching dark photons using displaced vertices at Belle II — with backgrounds |
| title_sort | searching dark photons using displaced vertices at belle ii with backgrounds |
| topic | New Gauge Interactions New Light Particles Specific BSM Phenomenology |
| url | https://doi.org/10.1007/JHEP08(2024)062 |
| work_keys_str_mv | AT joergjaeckel searchingdarkphotonsusingdisplacedverticesatbelleiiwithbackgrounds AT anhvuphan searchingdarkphotonsusingdisplacedverticesatbelleiiwithbackgrounds |