Weyl Symmetry Inspired Inflation and Dark Matter

Abstract

Motivated by the Weyl scaling gauge symmetry, we present a theoretical framework to explain cosmic inflation and dark matter simultaneously. This symmetry has been resurrected in recent attempts to formulate the gauge theory of gravity. We show the inspired inflation model is well consistent with current observations and will be probed further by future experiments. Furthermore, we clarify and prove the stability of Weyl gauge boson in the general theory with multiple scalars. We show the massive Weyl gauge boson can be a dark matter candidate and give the correct relic abundance.

18 pages, 1 figure; Accepted in Phys. Lett. B

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• Inflation in Weyl Scaling Invariant Gravity with $R^3$ Extensions
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• The foundation of the hyperunified field theory II -- fundamental interaction and evolving universe
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