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Search for Two-Photon Interaction with Axionlike Particles Using High-Repetition Pulsed Magnets and Synchrotron X

T Inada1, T Yamazaki1, T Namba1

  • 1International Center for Elementary Particle Physics, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan.

Physical Review Letters
|March 4, 2017
PubMed
Summary
This summary is machine-generated.

Researchers searched for axionlike particles (ALPs) using a novel light shining through a wall (LSW) experiment. This study sets a new, stronger limit on the ALP-two-photon coupling constant for low-mass ALPs.

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Area of Science:

  • Particle Physics
  • Astroparticle Physics
  • Quantum Field Theory

Background:

  • Axionlike particles (ALPs) are hypothetical particles proposed as dark matter candidates.
  • Searching for ALPs can provide insights into physics beyond the Standard Model.
  • The two-photon interaction is a key channel for detecting ALPs.

Purpose of the Study:

  • To search for evidence of axionlike particles (ALPs) interacting via a two-photon process.
  • To establish new experimental limits on the ALP-two-photon coupling constant.
  • To demonstrate a novel experimental technique for probing vacuum properties with high magnetic fields.

Main Methods:

  • Utilized a "light shining through a wall" (LSW) experimental setup at a synchrotron radiation facility.
  • Developed and employed a novel pulsed-magnet system generating high magnetic fields (approx. 10 T) over 0.8 m.
  • Collected data over 27,676 pulses with a high repetition rate (0.2 Hz).

Main Results:

  • Achieved a new, more stringent experimental limit on the ALP-two-photon coupling constant.
  • The new limit is a factor of 5.2 stronger than previous x-ray LSW limits for ALP masses below 0.1 eV.
  • Demonstrated a new method for probing vacuum properties using intense magnetic fields.

Conclusions:

  • The experiment successfully constrained the parameter space for low-mass axionlike particles.
  • The developed pulsed-magnet system offers a promising new tool for high-intensity field experiments.
  • This work advances the search for new physics beyond the Standard Model through innovative experimental techniques.