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n-n* oscillations in models with large extra dimensions.

Shmuel Nussinov1, Robert Shrock

  • 1Sackler Faculty of Science, Tel Aviv University, Tel Aviv, Israel.

Physical Review Letters
|May 15, 2002
PubMed
Summary

Neutron-antineutron oscillations may be detectable in models featuring large extra dimensions. These models allow standard-model fields to propagate, with strongly localized fermion wave functions, potentially revealing new physics.

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Area of Science:

  • Particle Physics
  • Cosmology
  • High Energy Physics

Background:

  • Neutron-antineutron oscillations are a hypothetical process beyond the Standard Model of particle physics.
  • Large extra dimension models offer a framework to explore physics beyond the Standard Model.
  • Strong localization of fermion wave functions is a key feature in some extra dimension scenarios.

Purpose of the Study:

  • To investigate the potential for neutron-antineutron oscillations in generic models with large extra dimensions.
  • To determine if these oscillations could occur at observable levels within current experimental limits.

Main Methods:

  • Analysis of neutron-antineutron oscillation probabilities within theoretical models.
  • Consideration of scenarios where standard-model fields propagate through extra dimensions.
  • Incorporation of strong localization effects for fermion wave functions.

Main Results:

  • Neutron-antineutron oscillations are found to be possible in these large extra dimension models.
  • The predicted oscillation levels are potentially close to, and not significantly below, current experimental detection limits.

Conclusions:

  • Generic models with large extra dimensions and localized fermions provide a viable context for observable neutron-antineutron oscillations.
  • These findings suggest that experimental searches for neutron-antineutron oscillations could yield significant discoveries in particle physics.

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