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Radiative Screening of Fifth Forces.

Clare Burrage1, Edmund J Copeland1, Peter Millington1

  • 1School of Physics and Astronomy, University of Nottingham, Nottingham NG7 2RD, United Kingdom.

Physical Review Letters
|December 3, 2016
PubMed
Summary

A new symmetron model explains fifth force screening via spontaneous symmetry breaking. This model aligns with current constraints and may be detectable in cold atom experiments, offering deviations from general relativity.

Area of Science:

  • Theoretical Physics
  • Cosmology
  • Particle Physics

Background:

  • Fifth forces are hypothetical interactions beyond the four known fundamental forces.
  • Current experimental constraints limit the detectability of many fifth force models.
  • Spontaneous symmetry breaking is a key concept in particle physics for generating mass and phenomena.

Purpose of the Study:

  • To propose a novel symmetron model for fifth force screening.
  • To investigate the role of the Coleman-Weinberg mechanism in this screening.
  • To assess the model's compatibility with existing experimental constraints and its potential for future detection.

Main Methods:

  • Development of a symmetron field theory incorporating the Coleman-Weinberg mechanism.
  • One-loop calculations to analyze spontaneous symmetry breaking and force screening.

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  • Comparison of theoretical predictions with current experimental limits on fifth forces.

    • Main Results:

    • The symmetron model successfully screens fifth forces at the one-loop level.
    • The model evades current stringent experimental constraints.
    • Observable deviations from general relativity are predicted within the model's framework.

    Conclusions:

    • The Coleman-Weinberg mechanism provides a viable route to screen fifth forces within a symmetron model.
    • This theoretical framework offers a promising avenue for future experimental searches.
    • Cold atom experiments are identified as a potential platform for detecting predicted deviations from general relativity.