PT Journal
AU Motohashi, H
   Starobinsky, AA
TI Constant-roll inflation: Confrontation with recent observational data
SO Europhysics Letters
JI EPL
PY 2017
BP 39001
EP 3pp
VL 117
IS 3
DI 10.1209/0295-5075/117/39001
LA English
AB The previously proposed class of phenomenological inflationary models in which the assumption of inflaton slow-roll is replaced by the more general, constant-roll condition is compared with the most recent cosmological observational data, mainly the Planck ones. Models in this two-parametric class which remain viable appear to be close to the slow-roll ones, and their inflaton potentials are close to (but still different from) that of the natural inflation model. The permitted regions for the two model parameters are presented.
ER