TY - JOUR
T1 - Natural Inflation on the brane with a TeV-scale gravity
AU - Videla, Nelson
AU - Panotopoulos, Grigorios
N1 - Funding Information:
N.V. was supported by Comisión Nacional de Ciencias y Tecnología of Chile through FONDECYT Grant No 3150490. G.P. was supported by Comisión Nacional de Ciencias y Tecnología of Chile through Anillo project ACT1122.
Publisher Copyright:
© Published under licence by IOP Publishing Ltd.
PY - 2018/6/25
Y1 - 2018/6/25
N2 - In the present work we have studied Natural Inflation in the framework of the Randall-Sundrum II brane model (RS-II) in the light of the latest Planck results. Adopting the Randall-Sundrum fine-tuning, the model is characterized by 3 parameters in total, namely the 5-dimensional Planck mass M 5 and the two mass scales of the inflaton potential f and Λ. We show in the ns - r plane the theoretical predictions of the model together with the allowed contour plots, and we conclude that the model is viable. By using the Planck results only it is possible to determine the two mass scales of the inflaton potential in terms of M 5, which remains undetermined. However, there are several good theoretical reasons to consider ahigher-dimensional Planck mass of the order of 10 TeV, which is compatible with primordial nucleosynthesis. If we insist on considering a M 5 of this order of magnitude all parameters are known.
AB - In the present work we have studied Natural Inflation in the framework of the Randall-Sundrum II brane model (RS-II) in the light of the latest Planck results. Adopting the Randall-Sundrum fine-tuning, the model is characterized by 3 parameters in total, namely the 5-dimensional Planck mass M 5 and the two mass scales of the inflaton potential f and Λ. We show in the ns - r plane the theoretical predictions of the model together with the allowed contour plots, and we conclude that the model is viable. By using the Planck results only it is possible to determine the two mass scales of the inflaton potential in terms of M 5, which remains undetermined. However, there are several good theoretical reasons to consider ahigher-dimensional Planck mass of the order of 10 TeV, which is compatible with primordial nucleosynthesis. If we insist on considering a M 5 of this order of magnitude all parameters are known.
UR - http://www.scopus.com/inward/record.url?scp=85050114751&partnerID=8YFLogxK
U2 - 10.1088/1742-6596/1043/1/012014
DO - 10.1088/1742-6596/1043/1/012014
M3 - Conference article
AN - SCOPUS:85050114751
VL - 1043
JO - Journal of Physics: Conference Series
JF - Journal of Physics: Conference Series
SN - 1742-6588
IS - 1
M1 - 012014
Y2 - 30 November 2016 through 2 December 2016
ER -