articleOSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information)Feb 15, 2023GREEN OA

Solutions to the strong CP problem in a world with gravity

RHR. Holman

University of California, Santa Barbara · Carnegie Mellon University

Abstract

We examine the sensitivity of several solutions of the strong-CP problem to violations of global symmetries by Planck scale physics. We find that the Peccei-Quinn solution is extremely sensitive to U(1)_PQ violating operators of dimension less than 10. We construct models in which the PQ symmetry is protected by gauge symmetries to the requisite level.

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220
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Authors

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Topics & keywords

Topics
Keywords
  • Homogeneous space
  • Dimension (graph theory)
  • Symmetry (geometry)
  • Physics
  • Sensitivity (control systems)
  • Theoretical physics
  • Gauge (firearms)
  • Construct (python library)
UN Sustainable Development Goals
  • Peace, Justice and strong institutions
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