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Setting Limits on Supersymmetry Using Simplified Models
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Composite Heavy Axionlike Dark Matter.

Pierluca Carenza1, Roman Pasechnik2, Zhi-Wei Wang3

  • 1Stockholm University, The Oskar Klein Centre, Department of Physics, Stockholm 106 91, Sweden.

Physical Review Letters
|July 31, 2025
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Summary
This summary is machine-generated.

We introduce a new type of dark matter candidate: composite axion-like particles (ALPs). These particles have very weak interactions, opening new research areas in cosmology and astrophysics.

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Area of Science:

  • Cosmology
  • Particle Physics
  • Astrophysics

Background:

  • Dark matter candidates are crucial for understanding the universe's composition.
  • Axion-like particles (ALPs) are well-motivated dark matter candidates.
  • Exploring new parameter spaces for ALPs is essential.

Purpose of the Study:

  • To propose a novel class of dark matter candidates: composite axion-like particles (ALPs).
  • To explore vast, unexplored regions of the ALP parameter space.
  • To establish a new theoretical framework for composite ALPs.

Main Methods:

  • Introducing a simple dark confining gauge theory.
  • Deriving a composite glueball ALP (GALP) dark matter coupling-mass relation.
  • Utilizing a heavy fermion portal to suppress GALP-photon coupling radiatively.

Main Results:

  • A new composite glueball ALP (GALP) dark matter candidate is proposed.
  • A novel coupling-mass relation for GALP dark matter is established.
  • Highly suppressed electromagnetic interactions for GALPs are achieved without fine-tuning.

Conclusions:

  • This work introduces a new avenue for dark matter research with composite ALPs.
  • The proposed GALP dark matter model is minimal, controlled by three parameters.
  • This research opens up new possibilities for exploring composite ALPs in multimessenger astrophysics and cosmology.