Superconformal subcritical hybrid inflation

Autor: Koji Ishiwata
Jazyk: angličtina
Rok vydání: 2018
Předmět:
Zdroj: Physics Letters B, Vol 782, Iss , Pp 367-371 (2018)
Druh dokumentu: article
ISSN: 0370-2693
DOI: 10.1016/j.physletb.2018.05.047
Popis: We consider D-term hybrid inflation in the framework of superconformal supergravity. In part of the parameter space, inflation continues for subcritical inflaton field value. Consequently, a new type of inflation emerges, which gives predictions for the scalar spectral index and the tensor-to-scalar ratio that are consistent with the Planck 2015 results. The potential in the subcritical regime is found to have a similar structure to one in the simplest class of superconformal α attractors.
Databáze: Directory of Open Access Journals