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Analyzing the Discovery Potential for Light Dark Matter.

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This study analyzes sub-GeV thermal dark matter, focusing on vector portal interactions. Precise calculations and experimental comparisons identify key areas for future dark matter detection efforts.

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Area of Science:

  • Particle Physics
  • Cosmology
  • Astrophysics

Background:

  • Dark matter constitutes a significant portion of the universe's mass.
  • Understanding dark matter's properties is crucial for cosmology.
  • Sub-GeV thermal dark matter interacting via the vector portal is a key area of research.

Purpose of the Study:

  • To assess the current status of sub-GeV thermal dark matter.
  • To analyze dark matter abundance and constraints within simple models.
  • To develop a framework for comparing experimental approaches and identifying optimal search regions.

Main Methods:

  • Precise calculation of dark matter abundance.
  • Analysis of constraints from various experimental approaches.
  • Development of a comparative framework for experimental strategies.

Main Results:

  • Determination of the present status of sub-GeV thermal dark matter.
  • Identification of important dark matter mass and coupling ranges for future exploration.
  • Highlighting complementary experimental approaches to reach sensitivity targets.

Conclusions:

  • The study provides a comprehensive overview of sub-GeV thermal dark matter.
  • Terrestrial experiments have a defined sensitivity target for thermal relics.
  • Future experiments should focus on complementary approaches to cover the sub-GeV mass range effectively.