Extended Haloscope Search and Candidate Validation near 1.036G Hz
Fuente:
arXiv
Enregistré dans:
| Auteurs principaux: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
|---|---|
| Format: | Preprint |
| Publié: |
2026
|
| Sujets: | |
| Accès en ligne: | |
| Tags: |
Ajouter un tag
Pas de tags, Soyez le premier à ajouter un tag!
|
| _version_ | 1866917250677604352 |
|---|---|
| author | Ahn, Saebyeok Ivanov, Boris I. Kwon, Ohjoon Byun, HeeSu van Loo, Arjan F. Park, SeongTae Kim, JinMyeong Jeong, Junu Lee, Soohyung Kim, Jinsu Kutlu, Caglar Yi, Andrew K. Nakamura, Yasunobu Oh, Seonjeong Ahn, Danho Bae, SungJae Choi, Hyoungsoon Choi, Jihoon Chong, Yonuk Chung, Woohyun Gkika, Violeta Kim, Jihn E. Kim, Younggeun Ko, Byeong Rok Miceli, Lino Lee, Doyu Lee, Jiwon Lee, Ki Woong Lee, MyeongJae Matlashov, Andrei Parashar, Pallavi Seong, Taehyeon Shin, Yun Chang Uchaikin, Sergey V. Semertzidis, Yannis K. Youn, SungWoo |
| author_facet | Ahn, Saebyeok Ivanov, Boris I. Kwon, Ohjoon Byun, HeeSu van Loo, Arjan F. Park, SeongTae Kim, JinMyeong Jeong, Junu Lee, Soohyung Kim, Jinsu Kutlu, Caglar Yi, Andrew K. Nakamura, Yasunobu Oh, Seonjeong Ahn, Danho Bae, SungJae Choi, Hyoungsoon Choi, Jihoon Chong, Yonuk Chung, Woohyun Gkika, Violeta Kim, Jihn E. Kim, Younggeun Ko, Byeong Rok Miceli, Lino Lee, Doyu Lee, Jiwon Lee, Ki Woong Lee, MyeongJae Matlashov, Andrei Parashar, Pallavi Seong, Taehyeon Shin, Yun Chang Uchaikin, Sergey V. Semertzidis, Yannis K. Youn, SungWoo |
| contents | We report a follow-up axion haloscope search near 1.036 GHz that completes and extends our previous work [Phys. Rev. X 14, 031023 (2024)], in which a portion of the HEMT-based data could not be analyzed due to unrecorded experimental information. While recovering this dataset, we identified an excess near 1.036 GHz that satisfied our candidate-selection criteria, motivating dedicated validation studies, including independent cross-checks and re-examination with the original apparatus. The excess did not persist under these investigations and was not confirmed as an axion dark-matter signal. We subsequently extended the search over a 20-MHz band surrounding the candidate using a quantum-noise-limited amplifier, achieving sensitivity close to the Dine-Fischler-Srednicki-Zhitnitsky benchmark. In the absence of a confirmed signal, we set improved 90% confidence-level upper limits on the axion-photon coupling over the frequency range 1.026-1.045 GHz. This work highlights the importance of robust candidate-validation strategies as haloscope searches approach discovery-level sensitivity. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2602_05388 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Extended Haloscope Search and Candidate Validation near 1.036G Hz Ahn, Saebyeok Ivanov, Boris I. Kwon, Ohjoon Byun, HeeSu van Loo, Arjan F. Park, SeongTae Kim, JinMyeong Jeong, Junu Lee, Soohyung Kim, Jinsu Kutlu, Caglar Yi, Andrew K. Nakamura, Yasunobu Oh, Seonjeong Ahn, Danho Bae, SungJae Choi, Hyoungsoon Choi, Jihoon Chong, Yonuk Chung, Woohyun Gkika, Violeta Kim, Jihn E. Kim, Younggeun Ko, Byeong Rok Miceli, Lino Lee, Doyu Lee, Jiwon Lee, Ki Woong Lee, MyeongJae Matlashov, Andrei Parashar, Pallavi Seong, Taehyeon Shin, Yun Chang Uchaikin, Sergey V. Semertzidis, Yannis K. Youn, SungWoo High Energy Physics - Experiment We report a follow-up axion haloscope search near 1.036 GHz that completes and extends our previous work [Phys. Rev. X 14, 031023 (2024)], in which a portion of the HEMT-based data could not be analyzed due to unrecorded experimental information. While recovering this dataset, we identified an excess near 1.036 GHz that satisfied our candidate-selection criteria, motivating dedicated validation studies, including independent cross-checks and re-examination with the original apparatus. The excess did not persist under these investigations and was not confirmed as an axion dark-matter signal. We subsequently extended the search over a 20-MHz band surrounding the candidate using a quantum-noise-limited amplifier, achieving sensitivity close to the Dine-Fischler-Srednicki-Zhitnitsky benchmark. In the absence of a confirmed signal, we set improved 90% confidence-level upper limits on the axion-photon coupling over the frequency range 1.026-1.045 GHz. This work highlights the importance of robust candidate-validation strategies as haloscope searches approach discovery-level sensitivity. |
| title | Extended Haloscope Search and Candidate Validation near 1.036G Hz |
| topic | High Energy Physics - Experiment |
| url | https://arxiv.org/abs/2602.05388 |