Radiative Inflation and Dark Energy RIDEs Again after BICEP2

Alexander Merle (Southampton U.); Angnis Schmidt-May (Stockholm U.; Christoph Luhn (Siegen U.); OKC & Stockholm U.); Pasquale Di Bari (Southampton U.); Stephen F. King (Southampton U.)

arxiv: 1404.0009 · v2 · pith:OSPAOLGLnew · submitted 2014-03-31 · ✦ hep-ph · astro-ph.CO

Radiative Inflation and Dark Energy RIDEs Again after BICEP2

Pasquale Di Bari (Southampton U.) , Stephen F. King (Southampton U.) , Christoph Luhn (Siegen U.) , Alexander Merle (Southampton U.) , Angnis Schmidt-May (Stockholm U. , OKC & Stockholm U.) This is my paper

classification ✦ hep-ph astro-ph.CO

keywords inflationmodelbicep2chaoticdarkenergypotentialradiative

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Following the ground-breaking measurement of the tensor-to-scalar ratio $r = 0.20^{+0.07}_{- 0.05}$ by the BICEP2 collaboration, we perform a statistical analysis of a model that combines Radiative Inflation with Dark Energy (RIDE) based on the $M^2 |\Phi|^2 \ln \left(|\Phi|^2/\Lambda^2 \right)$ potential and compare its predictions to those based on the traditional chaotic inflation $M^2|\Phi|^2$ potential. We find a best-fit value in the RIDE model of $r=0.18$ as compared to $r=0.17$ in the chaotic model, with the spectral index being $n_S=0.96$ in both models.

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Radiative Inflation and Dark Energy RIDEs Again after BICEP2

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