Inflation may provide a suitable collider to probe physics at very high energies. In this paper we investigate the impact on the cosmic microwave background bispectrum of higher spin fields which are long-lived on super-Hubble scales, e.g., partially massless higher spin fields. We show that distinctive statistical anisotropic signals on the cosmic microwave background three-point correlator are induced and we investigate their detectability.
Detecting higher spin fields through statistical anisotropy in the CMB bispectrum / Franciolini, G.; Kehagias, A.; Riotto, A.; Shiraishi, M.. - In: PHYSICAL REVIEW D. - ISSN 2470-0010. - 98:4(2018). [10.1103/PhysRevD.98.043533]
Detecting higher spin fields through statistical anisotropy in the CMB bispectrum
Franciolini G.;Riotto A.;
2018
Abstract
Inflation may provide a suitable collider to probe physics at very high energies. In this paper we investigate the impact on the cosmic microwave background bispectrum of higher spin fields which are long-lived on super-Hubble scales, e.g., partially massless higher spin fields. We show that distinctive statistical anisotropic signals on the cosmic microwave background three-point correlator are induced and we investigate their detectability.File | Dimensione | Formato | |
---|---|---|---|
Franciolini_Detecting higher_2018.pdf
accesso aperto
Tipologia:
Versione editoriale (versione pubblicata con il layout dell'editore)
Licenza:
Tutti i diritti riservati (All rights reserved)
Dimensione
1.47 MB
Formato
Adobe PDF
|
1.47 MB | Adobe PDF |
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.