Baseline filtering and peak reconstruction for haloscope-like axion searches
Abstract Axions are well-motivated dark matter particles. Many experiments are looking for their experimental evidence. For haloscopes, the problem reduces to the identification of a peak above a noisy baseline. Its modeling, however, may be problematic. State-of-the-art analyses rely on the Savitzk...
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| Format: | Article |
| Language: | English |
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SpringerOpen
2025-07-01
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| Series: | Journal of High Energy Physics |
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| Online Access: | https://doi.org/10.1007/JHEP07(2025)191 |
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| author | A. Gallo Rosso J. Conrad J. Jeong |
| author_facet | A. Gallo Rosso J. Conrad J. Jeong |
| author_sort | A. Gallo Rosso |
| collection | DOAJ |
| description | Abstract Axions are well-motivated dark matter particles. Many experiments are looking for their experimental evidence. For haloscopes, the problem reduces to the identification of a peak above a noisy baseline. Its modeling, however, may be problematic. State-of-the-art analyses rely on the Savitzky-Golay (SG) filtering, which is intrinsically affected by any possible over fluctuation, leading to biased results. In this paper we study the efficiency that different extensions of SG can provide in the peak reconstruction in a standard haloscope-like experiment. We show that, once the correlations among bins are taken into account, there is no appreciable difference. The standard SG remains the advisable choice because of its numerical efficiency. |
| format | Article |
| id | doaj-art-103a3fde9bbf453a866c8b6c538559f3 |
| institution | Kabale University |
| issn | 1029-8479 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj-art-103a3fde9bbf453a866c8b6c538559f32025-08-20T04:01:42ZengSpringerOpenJournal of High Energy Physics1029-84792025-07-012025711610.1007/JHEP07(2025)191Baseline filtering and peak reconstruction for haloscope-like axion searchesA. Gallo Rosso0J. Conrad1J. Jeong2Physics Department and Oskar Klein Centre, Stockholm UniversityPhysics Department and Oskar Klein Centre, Stockholm UniversityPhysics Department and Oskar Klein Centre, Stockholm UniversityAbstract Axions are well-motivated dark matter particles. Many experiments are looking for their experimental evidence. For haloscopes, the problem reduces to the identification of a peak above a noisy baseline. Its modeling, however, may be problematic. State-of-the-art analyses rely on the Savitzky-Golay (SG) filtering, which is intrinsically affected by any possible over fluctuation, leading to biased results. In this paper we study the efficiency that different extensions of SG can provide in the peak reconstruction in a standard haloscope-like experiment. We show that, once the correlations among bins are taken into account, there is no appreciable difference. The standard SG remains the advisable choice because of its numerical efficiency.https://doi.org/10.1007/JHEP07(2025)191Axions and ALPsModels for Dark Matter |
| spellingShingle | A. Gallo Rosso J. Conrad J. Jeong Baseline filtering and peak reconstruction for haloscope-like axion searches Journal of High Energy Physics Axions and ALPs Models for Dark Matter |
| title | Baseline filtering and peak reconstruction for haloscope-like axion searches |
| title_full | Baseline filtering and peak reconstruction for haloscope-like axion searches |
| title_fullStr | Baseline filtering and peak reconstruction for haloscope-like axion searches |
| title_full_unstemmed | Baseline filtering and peak reconstruction for haloscope-like axion searches |
| title_short | Baseline filtering and peak reconstruction for haloscope-like axion searches |
| title_sort | baseline filtering and peak reconstruction for haloscope like axion searches |
| topic | Axions and ALPs Models for Dark Matter |
| url | https://doi.org/10.1007/JHEP07(2025)191 |
| work_keys_str_mv | AT agallorosso baselinefilteringandpeakreconstructionforhaloscopelikeaxionsearches AT jconrad baselinefilteringandpeakreconstructionforhaloscopelikeaxionsearches AT jjeong baselinefilteringandpeakreconstructionforhaloscopelikeaxionsearches |