Search for dark photon dark matter in the mass range <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mn>41</mml:mn><mml:mo>−</mml:mo><mml:mn>74</mml:mn><mml:mtext> </mml:mtext><mml:mtext> </mml:mtext><mml:mi mathvariant="normal">μ</mml:mi><mml:mi>eV</mml:mi></mml:mrow></mml:math> using millimeter-wave receiver and radioshielding box

DOI Web Site Web Site 参考文献27件 オープンアクセス
  • S. Adachi
    Hakubi Center for Advanced Research, Kyoto University, Kyoto 606-8501, Japan
  • R. Fujinaka
    Department of Physics, Faculty of Science, Kyoto University, Kyoto 606-8502, Japan
  • Y. Muto
    Department of Physics, Faculty of Science, Kyoto University, Kyoto 606-8502, Japan
  • H. Nakata
    Department of Physics, Faculty of Science, Kyoto University, Kyoto 606-8502, Japan
  • Y. Sueno
    Department of Physics, Faculty of Science, Kyoto University, Kyoto 606-8502, Japan
  • T. Sumida
    Department of Physics, Faculty of Science, Kyoto University, Kyoto 606-8502, Japan
  • J. Suzuki
    Department of Physics, Faculty of Science, Kyoto University, Kyoto 606-8502, Japan
  • O. Tajima
    Department of Physics, Faculty of Science, Kyoto University, Kyoto 606-8502, Japan
  • H. Takeuchi
    Department of Physics, Faculty of Science, Kyoto University, Kyoto 606-8502, Japan
  • S. Honda
    Division of Physics, Faculty of Pure and Applied Sciences, University of Tsukuba, Ibaraki, 305-8571, Japan

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<jats:p>Dark photons have been considered potential candidates for dark matter. The dark photon dark matter (DPDM) has a mass and interacts with electromagnetic fields via kinetic mixing with a coupling constant of <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:mi>χ</a:mi></a:math>. Thus, DPDMs are converted into ordinary photons at metal surfaces. Using a millimeter-wave receiver set in a radioshielding box, we performed experiments to detect the conversion photons from the DPDM in the frequency range 10–18 GHz, which corresponds to a mass range <c:math xmlns:c="http://www.w3.org/1998/Math/MathML" display="inline"><c:mn>41</c:mn><c:mo>–</c:mo><c:mn>74</c:mn><c:mtext> </c:mtext><c:mtext> </c:mtext><c:mi mathvariant="normal">μ</c:mi><c:mi>eV</c:mi></c:math>. We found no conversion photon signal in this range and set the upper limits to <f:math xmlns:f="http://www.w3.org/1998/Math/MathML" display="inline"><f:mi>χ</f:mi><f:mo><</f:mo><f:mo stretchy="false">(</f:mo><f:mn>0.5</f:mn><f:mo>–</f:mo><f:mn>3.9</f:mn><f:mo stretchy="false">)</f:mo><f:mo>×</f:mo><f:msup><f:mn>10</f:mn><f:mrow><f:mo>−</f:mo><f:mn>10</f:mn></f:mrow></f:msup></f:math> at a 95% confidence level.</jats:p> <jats:sec> <jats:title/> <jats:supplementary-material> <jats:permissions> <jats:copyright-statement>Published by the American Physical Society</jats:copyright-statement> <jats:copyright-year>2024</jats:copyright-year> </jats:permissions> </jats:supplementary-material> </jats:sec>

収録刊行物

  • Physical Review D

    Physical Review D 109 (1), 2024-01-25

    American Physical Society (APS)

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