Long-lived particle searches with the ILD experiment
Future e+e− colliders provide a unique opportunity for long-lived particle (LLP) searches. This study focusses on LLP searches using the International Large Detector (ILD), a detector concept for a future Higgs factory. The signature considered is a displaced vertex inside the ILD’s Time Projection...
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| Language: | English |
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EDP Sciences
2024-01-01
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| Series: | EPJ Web of Conferences |
| Online Access: | https://www.epj-conferences.org/articles/epjconf/pdf/2024/25/epjconf_lcws2024_01033.pdf |
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| author | Klamka Jan Franciszek Żarnecki Aleksander Filip Jeans Daniel |
| author_facet | Klamka Jan Franciszek Żarnecki Aleksander Filip Jeans Daniel |
| author_sort | Klamka Jan Franciszek |
| collection | DOAJ |
| description | Future e+e− colliders provide a unique opportunity for long-lived particle (LLP) searches. This study focusses on LLP searches using the International Large Detector (ILD), a detector concept for a future Higgs factory. The signature considered is a displaced vertex inside the ILD’s Time Projection Chamber. We study challenging scenarios involving small mass splittings between heavy LLP and dark matter, resulting in soft displaced tracks. As an opposite case, we explore light pseudoscalar LLPs decaying to boosted, nearly collinear tracks. Backgrounds from beam-induced processes and physical events are considered. Various tracking system designs and their impact on LLP reconstruction are discussed. Assuming a single displaced vertex signature, model-independent limits on signal production cross section are presented for a range of LLP lifetimes, masses, and mass splittings. The limits can be used for constraining specific models, with more complex displaced vertex signatures. |
| format | Article |
| id | doaj-art-b73cbf1ace0744b9b00aa170e34b57e1 |
| institution | Kabale University |
| issn | 2100-014X |
| language | English |
| publishDate | 2024-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | EPJ Web of Conferences |
| spelling | doaj-art-b73cbf1ace0744b9b00aa170e34b57e12025-01-06T11:33:47ZengEDP SciencesEPJ Web of Conferences2100-014X2024-01-013150103310.1051/epjconf/202431501033epjconf_lcws2024_01033Long-lived particle searches with the ILD experimentKlamka Jan Franciszek0Żarnecki Aleksander Filip1Jeans Daniel2Faculty of Physics, University of WarsawFaculty of Physics, University of WarsawKEKFuture e+e− colliders provide a unique opportunity for long-lived particle (LLP) searches. This study focusses on LLP searches using the International Large Detector (ILD), a detector concept for a future Higgs factory. The signature considered is a displaced vertex inside the ILD’s Time Projection Chamber. We study challenging scenarios involving small mass splittings between heavy LLP and dark matter, resulting in soft displaced tracks. As an opposite case, we explore light pseudoscalar LLPs decaying to boosted, nearly collinear tracks. Backgrounds from beam-induced processes and physical events are considered. Various tracking system designs and their impact on LLP reconstruction are discussed. Assuming a single displaced vertex signature, model-independent limits on signal production cross section are presented for a range of LLP lifetimes, masses, and mass splittings. The limits can be used for constraining specific models, with more complex displaced vertex signatures.https://www.epj-conferences.org/articles/epjconf/pdf/2024/25/epjconf_lcws2024_01033.pdf |
| spellingShingle | Klamka Jan Franciszek Żarnecki Aleksander Filip Jeans Daniel Long-lived particle searches with the ILD experiment EPJ Web of Conferences |
| title | Long-lived particle searches with the ILD experiment |
| title_full | Long-lived particle searches with the ILD experiment |
| title_fullStr | Long-lived particle searches with the ILD experiment |
| title_full_unstemmed | Long-lived particle searches with the ILD experiment |
| title_short | Long-lived particle searches with the ILD experiment |
| title_sort | long lived particle searches with the ild experiment |
| url | https://www.epj-conferences.org/articles/epjconf/pdf/2024/25/epjconf_lcws2024_01033.pdf |
| work_keys_str_mv | AT klamkajanfranciszek longlivedparticlesearcheswiththeildexperiment AT zarneckialeksanderfilip longlivedparticlesearcheswiththeildexperiment AT jeansdaniel longlivedparticlesearcheswiththeildexperiment |