The measurement of a primordial non-gaussian signal in the CMB temperature distribution is the best way to discriminate between different inflationary model. We develop a scale dependent factorizable form for the CMB bispectra, and a complete set of analytical tools to compute scale dependent bispectra and perform analysis and forecast for the non-gaussian amplitude parameter fNL and for the running parameter nNG.
Primordial non-Gaussianity and scale-dependent bispectra in the Cosmic Microwave Background
Oppizzi, Filippo
2014/2015
Abstract
The measurement of a primordial non-gaussian signal in the CMB temperature distribution is the best way to discriminate between different inflationary model. We develop a scale dependent factorizable form for the CMB bispectra, and a complete set of analytical tools to compute scale dependent bispectra and perform analysis and forecast for the non-gaussian amplitude parameter fNL and for the running parameter nNG.File in questo prodotto:
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Utilizza questo identificativo per citare o creare un link a questo documento:
https://hdl.handle.net/20.500.12608/18756