Tree Level Potential on Brane after Planck and BICEP2

Journal of astrophysics and astronomy

M. Bennai1 3¹  M. Ferricha-Alami1¹  A. Safsafi1¹  H. Chakir2²  L. Lahlou1¹ 

[1] Laboratoire de Physique de la Matière Condensée (URAC10), Equipe Physique Quantique et Applications, Faculté des Sciences Ben M'sik, Université Hassan II, B.P. 7955, Casablanca, Maroc$$;Equipe de Recherche Subatomique et Applications, Faculté des Sciences Ben M'sik, Université Hassan II, B.P. 7955, Casablanca, Maroc.$$

关键词: Tree level potential—braneworld—perturbation spectrum—Planck—BICEP2.;   

DOI  :  

学科分类：天文学(综合)

来源: Indian Academy of Sciences

【 摘 要 】

The recent detection of degree scale B-mode polarization in the Cosmic Microwave Background (CMB) by the BICEP2 experiment implies that the inflationary ratio of tensor-to-scalar fluctuations is 𝑟 = 0.2$^{+0.07}_{-0.05}$, which has opened a new window in the cosmological investigation. In this regard, we propose a study of the tree level potential inflation in the framework of the Randall–Sundrum type-2 braneworld model. We focus on three branches of the potential, where we evaluate some values of brane tension 𝜆. We discuss how the various inflationary perturbation parameters can be compatible with recent Planck and BICEP2 observations.

【 授权许可】

Unknown