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Search for dark photon using a millimeter-wave spectrometer in the unexplored mass range

Research Project

Project/Area Number 20K14486
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 15020:Experimental studies related to particle-, nuclear-, cosmic ray and astro-physics
Research InstitutionKyoto University (2021-2022)
The University of Tokyo (2020)

Principal Investigator

Adachi Shunsuke  京都大学, 白眉センター, 特定助教 (80835273)

Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2022: ¥130,000 (Direct Cost: ¥100,000、Indirect Cost: ¥30,000)
Fiscal Year 2021: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2020: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords暗黒光子 / ダークマター / ミリ波 / 新粒子探索 / ダークフォトン / 極低温 / 低温検出器
Outline of Research at the Start

ダークマターの候補である暗黒光子と呼ばれる粒子をミリ波の光(20GHz~100GHzの光)を用いて探索する。暗黒光子は金属板の中で自由電子の作る電磁場と非常に弱く反応して実光子を放出すると考えられている。暗黒光子の質量はこの放出される実光子の周波数と一対一対応する。暗黒光子の質量はある程度軽い以上のことはわかっていおらず、ミリ波領域に対応する質量の暗黒光子はまだまだ探索されていない。ミリ波の光検出器の低温化と検出器の応答性の較正の自動化によって、感度よく&効率よく暗黒光子の放出する光子を探索し、前人未到の質量領域(10e-4~10e-3eV)において世界最高感度で暗黒光子を探索する。

Outline of Final Research Achievements

Dark matter occupies a quarter of the total energy in the universe. However, we don't know the mass. This research aims to detect dark matter using a millimeter-wave spectrometer to reveal its characteristics. In particular, our target is a "dark photon" which is predicted to convert to a millimeter-wave and the frequency corresponds to a mass of dark matter. Since the dark matter mass is unknown, the broadband search of the millimeter-wave signal is required.
We have developed a millimeter-wave spectrometer for the frequency range of 18--26.5 GHz and conducted a search for the signal from the dark photon. We have not found any sign of the dark photon, but we achieved exploring the dark photon with much higher sensitivity than the conventional constraints from the cosmic observations. In the final year, we also searched for the dark photon in the frequency range of 10-18 GHz with another developed spectrometer.

Academic Significance and Societal Importance of the Research Achievements

暗黒光子をミリ波帯域で広く探索した実験は今までになく、ミリ波分光器を用いた暗黒光子探索の手法の確立が本研究によっておこなえたといえる。また、暗黒光子の発見には至らなかったが、今回探索した10ー26.5 GHzに対応する質量領域(0.04ー0.11ミリ電子ボルト)では暗黒光子が存在している可能性が低いという知見が得られた。今後、本研究で確立した手法をもとに、より広い周波数帯域、すなわち質量領域での暗黒光子ダークマターを探索していきたい。

Report

(4 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (18 results)

All 2023 2022 2021 2020 Other

All Journal Article (1 results) (of which Peer Reviewed: 1 results,  Open Access: 1 results) Presentation (15 results) (of which Int'l Joint Research: 5 results,  Invited: 1 results) Remarks (2 results)

  • [Journal Article] Search for Dark Photon Dark Matter in the Mass Range 74-110 ueV with a Cryogenic Millimeter-Wave Receiver2023

    • Author(s)
      Kotaka S.、Adachi S.、Fujinaka R.、Honda S.、Nakata H.、Seino Y.、Sueno Y.、Sumida T.、Suzuki J.、Tajima O.、Takeichi S.、DOSUE-RR Collaboration
    • Journal Title

      Physical Review Letters

      Volume: 130 Issue: 7 Pages: 071805-071805

    • DOI

      10.1103/physrevlett.130.071805

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] 広帯域なダークフォトン探索実験、DOSUE-RR の現状と予定2023

    • Author(s)
      安達俊介
    • Organizer
      日本物理学会2023年春季大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] ダークフォトン-CDM 探索実験 DOSUE-RR―200GHz 帯での測定に向けた受信機の開発2022

    • Author(s)
      安達俊介
    • Organizer
      日本物理学会 2022 年秋季大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Dark matter hunting with cutting-edge millimeter-wave technologies2022

    • Author(s)
      Shunsuke Adachi
    • Organizer
      QUP workshop: toward Project Q
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] DOSUE-RR - Dark-photon dark-matter search at Kyoto2022

    • Author(s)
      Shunsuke Adachi
    • Organizer
      Kashiwa Dark Matter Symposium 2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] First results of DOSUE-RR experiment - the most stringent constraint for dark photon CDM at the mass range of 74-110 μeV2022

    • Author(s)
      Shunsuke Adachi
    • Organizer
      International Conference on High Energy Physics (ICHEP) 2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 超軽量ダークマター探索実験 DOSUE-RR/K-band における初測定2022

    • Author(s)
      安達俊介
    • Organizer
      第 22 回ミリ波サブミリ波受信機ワークショップ
    • Related Report
      2021 Research-status Report
  • [Presentation] ダークフォトン CDM 探索実験 DOSUE-RR/K-band 75--110 μeV/c^2 における初期探索2022

    • Author(s)
      安達俊介
    • Organizer
      日本物理学会 第 77 回年次大会
    • Related Report
      2021 Research-status Report
  • [Presentation] Dark-photon Observation System for Unexplored Radio Range - DOSUE-RR2021

    • Author(s)
      Shumpei Kotaka
    • Organizer
      19th International Workshop on Low Temperature Detectors
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] DOSUE-RR - experiment to explore ultra-light CDM in the millimeter-wave range2021

    • Author(s)
      Toshi Sumida
    • Organizer
      KASHIWA DARK MATTER SYMPOSIUM
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] ミリ波領域におけるダークフォトン探索実験 DOSUE-RR - 熱放射ノイズの 評価2021

    • Author(s)
      小高駿平
    • Organizer
      日本物理学会 第 76 回秋季大会
    • Related Report
      2021 Research-status Report
  • [Presentation] ミリ波領域におけるダークフォトン探索 DOSUE-RR実験 -実験装置の冷却試験と探索感度の評価-2021

    • Author(s)
      小髙駿平
    • Organizer
      日本物理学会 第76回年次大会
    • Related Report
      2020 Research-status Report
  • [Presentation] ミリ波領域におけるダークフォトン探索 DOSUE-RR実験 熱放射ノイズの抑制研究2020

    • Author(s)
      小髙駿平
    • Organizer
      日本物理学会 第75回秋季大会
    • Related Report
      2020 Research-status Report
  • [Presentation] Search for Dark Photons in millimeter-wave range Simulation study to minimize thermal radiation noise2020

    • Author(s)
      小髙駿平
    • Organizer
      新学術領域「ニュートリノで拓く素粒子と宇宙」研究会2020
    • Related Report
      2020 Research-status Report
  • [Presentation] Search for Dark Photons in millimeter-wave range Simulation study to minimize thermal radiation noise2020

    • Author(s)
      小髙駿平
    • Organizer
      KASHIWA DARK MATTER SYMPOSIUM 2020
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] ミリ波帯域でのダークフォトン探索 ― DOSUE-RR 実験 ―2020

    • Author(s)
      安達俊介
    • Organizer
      ダークマターの懇談会2020
    • Related Report
      2020 Research-status Report
  • [Remarks] ミリ波を用いたダークマター探索手法を確立

    • URL

      https://www.kyoto-u.ac.jp/ja/research-news/2023-03-07-1

    • Related Report
      2022 Annual Research Report
  • [Remarks] Thinking big and dark by starting small and light

    • URL

      https://www.eurekalert.org/news-releases/983711

    • Related Report
      2022 Annual Research Report

URL: 

Published: 2020-04-28   Modified: 2024-01-30  

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