PIRSA:08060132 Conference Quantum Fields and Strings Particle Physics Cosmology

DOI10.48660/08060132

Conference/School: PASCOS 08

Bernardeau, F. (2008). Non-Gaussianities in extended D-term inflation. Perimeter Institute. https://pirsa.org/08060132

Bernardeau, Francis. Non-Gaussianities in extended D-term inflation. Perimeter Institute, Jun. 03, 2008, https://pirsa.org/08060132 

@misc{ pirsa_PIRSA:08060132,
  doi = {10.48660/08060132},
  url = {https://pirsa.org/08060132},
  author = {Bernardeau, Francis},
  keywords = {Quantum Fields and Strings, Particle Physics, Cosmology},
  language = {en},
  title = {Non-Gaussianities in extended D-term inflation},
  publisher = {Perimeter Institute},
  year = {2008},
  month = {jun},
  note = {PIRSA:08060132 see, \url{https://pirsa.org}}
}

Abstract

I will present extensions of hybrid inflationary models in the context of supersymmetric D-term in- flation. I will show that there exists a large domain of parameters in which significant primordial non-Gaussianities can be produced while preserving a scale free power spectrum for the metric fluctuations. In particular I will explicitly present the expected bi- and trispectrum for such models and compared the results to the current and expected observational constraints. It is to be noticed that it is necessary to use both the bi- and tri-spectra of CMB anisotropies to efficiently reduce the parameter space of such models.

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