Abstract
A new class of inflation models within the context of G inflation is proposed, in which the standard model Higgs boson can act as an inflaton thanks to Galileon-like nonlinear derivative interaction. The generated primordial density perturbation is shown to be consistent with the present observational data. We also make a general discussion on potential-driven -inflation models, and find a new consistency relation between the tensor-to-scalar ratio and the tensor spectral index , , which is crucial in discriminating the present models from standard inflation with a canonical kinetic term.
- Received 23 December 2010
DOI:https://doi.org/10.1103/PhysRevD.83.083515
© 2011 American Physical Society