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| Presentation | 2024-03-14 09:30 Search for ultra-light dark matter using millimeter wave receiver -- DOSUE-RR -- Shunsuke Adachi (Kyoto Univ.)  WPT2023-35 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | Dark matter accounts for approximately one-quarter of the total energy in the universe. However, most of its properties, especially its mass, are unknown. DOSUE-RR (Dark-photon dark-matter Observing System for Un-Explored Radio-Range) is an experiment aiming to detect ultra-light dark matter. If the dark matter is dark photon that is one of the dark matter candidates, the dark matter is predicted to convert into a millimeter wave. We developed a millimeter-wave receiver with a horn antenna to detect the dark photon signal, and performed the dark-photon search measurements in the frequency range from 10 GHz to 18 GHz. To estimate the sensitivity of our dark photon measurements, it is essential to know the effective aperture area of the horn antenna. Therefore, we performed beam-pattern measurements with a near-field antenna measurement system and calculated the effective aperture area. We also performed an antenna simulation to estimate the effective aperture area. Considering these results, we obtained the sensitivity of our dark photon measurements. As a conclusion, we found that our study was better than the previous cosmological sensitivities. |
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| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Dark matter / Dark photon / Horn antenna / Beam pattern / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 123, no. 437, WPT2023-35, pp. 1-6, March 2024. | |
| Paper # | WPT2023-35 | |
| Date of Issue | 2024-03-06 (WPT) | |
| ISSN | Online edition: ISSN 2432-6380 | |
| Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) | |
| Download PDF | WPT2023-35 |
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| Conference Information | |
| Committee | WPT |
| Conference Date | 2024-03-13 - 2024-03-15 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Kyoto-Univ. (Uji campus) |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | SSPS Technology, General WPT |
| Paper Information | |
| Registration To | WPT |
| Conference Code | 2024-03-WPT |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Search for ultra-light dark matter using millimeter wave receiver |
| Sub Title (in English) | DOSUE-RR |
| Keyword(1) | Dark matter |
| Keyword(2) | Dark photon |
| Keyword(3) | Horn antenna |
| Keyword(4) | Beam pattern |
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| 1st Author's Name | Shunsuke Adachi |
| 1st Author's Affiliation | Kyoto University (Kyoto Univ.) |
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| Speaker | Author-1 |
| Date Time | 2024-03-14 09:30:00 |
| Presentation Time | 25 minutes |
| Registration for | WPT |
| Paper # | WPT2023-35 |
| Volume (vol) | vol.123 |
| Number (no) | no.437 |
| Page | pp.1-6 |
| #Pages | 6 |
| Date of Issue | 2024-03-06 (WPT) |
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