Non-Gaussianity as a particle detector

@article{Lee2016NonGaussianityAA,
  title={Non-Gaussianity as a particle detector},
  author={H. Lee and D. Baumann and G. Pimentel},
  journal={Journal of High Energy Physics},
  year={2016},
  volume={2016},
  pages={1-57}
}
  • H. Lee, D. Baumann, G. Pimentel
  • Published 2016
  • Physics
  • Journal of High Energy Physics
  • A bstractWe study the imprints of massive particles with spin on cosmological correlators. Using the framework of the effective field theory of inflation, we classify the couplings of these particles to the Goldstone boson of broken time translations and the graviton. We show that it is possible to generate observable non-Gaussianity within the regime of validity of the effective theory, as long as the masses of the particles are close to the Hubble scale and their interactions break the… CONTINUE READING

    Figures from this paper.

    Paper Mentions

    References

    Publications referenced by this paper.
    SHOWING 1-10 OF 72 REFERENCES
    Cosmological Collider Physics
    203
    Equilateral Non-Gaussianity and New Physics on the Horizon
    129
    Non-Gaussian features of primordial fluctuations in single field inflationary models
    1824
    The Observed Squeezed Limit of Cosmological Three-Point Functions
    126
    The effective field theory of multifield inflation
    165
    Effective field theory approach to quasi-single field inflation and effects of heavy fields
    131
    Forbidden mass range for spin-2 field theory in de Sitter spacetime
    336