Planck constraints on Higgs modulated reheating of renormalization group improved inflation
Abstract
Within the framework of RG improved inflationary cosmology motivated by asymptotically safe gravity, we study the dynamics of a scalar field which can be interpreted as the Higgs field. The background trajectories of this model can provide sufficient inflationary e-folds and a graceful exit to a radiation dominated phase. We study the possibility of generating primordial curvature perturbations through the Standard Model Higgs boson. This can be achieved under finely tuned parameter choices by making use of the modulated reheating mechanism. The primordial non-gaussianity is expected to be sizable in this model. Though tightly constrained by the newly released Planck CMB data, this model provides a potentially interesting connection between collider and early universe physics.
Keywords
Cite
@article{arxiv.1304.6938,
title = {Planck constraints on Higgs modulated reheating of renormalization group improved inflation},
author = {Yi-Fu Cai and Yu-Chiao Chang and Pisin Chen and Damien A. Easson and Taotao Qiu},
journal= {arXiv preprint arXiv:1304.6938},
year = {2013}
}
Comments
13 pages, 6 figures