Inflation and long-range force from a clockwork D term

  title={Inflation and long-range force from a clockwork 
  author={Anjan S. Joshipura and Subhendra Mohanty and K. Patel},
  journal={Physical Review D},
Cosmic inflation driven by the vacuum energy associated with the $D$ term of a supersymmetric Abelian gauge group and a possible existence of long-range force mediated by an ultralight gauge boson ${Z}^{\ensuremath{'}}$ are two extreme examples of models based on extra $U(1)$ symmetries. Large vacuum energy sets the scale of inflation while the scales of long-range forces induced by anomaly free extra gauged $U(1)$ symmetries are constrained by neutrino oscillations, binary pulsar timings, and… 

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