Non-Gaussianity from $X, Y$ gauge bosons in Cosmological Collider Physics

Heavy fields of Hubble scale order present during inflation contribute to the non-Gaussian signature for the three-point function of the inflaton. Taking into account that Hubble scale is around the scale of grand unified theory (GUT), this opens a possibility that the GUT scale signatures, which ar...

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Bibliographische Detailangaben

Hauptverfasser:	Maru, Nobuhito, Okawa, Akira
Format:	Artikel
Sprache:	eng
Schlagworte:	Physics - Cosmology and Nongalactic Astrophysics Physics - General Relativity and Quantum Cosmology Physics - High Energy Physics - Phenomenology Physics - High Energy Physics - Theory
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