Right-handed neutrinos as the source of density perturbations

Lotfi Boubekeur, Paolo Creminelli

Producción científica: Contribución a una revistaArtículorevisión exhaustiva

6 Citas (Scopus)

Resumen

We study the possibility that cosmological density perturbations are generated by the inhomogeneous decay of right-handed neutrinos. This will occur if a scalar field whose fluctuations are created during inflation is coupled to the neutrino sector. Robust predictions of the model are a detectable level of non-Gaussianity and, if standard leptogenesis is the source of the baryon asymmetry, a baryon isocurvature perturbations at the level of the present experimental constraints.

Idioma originalInglés
Número de artículo103516
PublicaciónPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volumen73
N.º10
DOI
EstadoPublicada - 2006
Publicado de forma externa

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