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Testing Hybrid Natural Inflation with BICEP2 · Around

2014

Testing Hybrid Natural Inflation with BICEP2

Carrillo-Gonzalez, Mariana, German, Gabriel, Herrera-Aguilar, Alfredo et al.

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We analyse Hybrid Natural Inflation in view of the recent results for the tensor index reported by BICEP2.

We find that it predicts a large running of the scalar spectrum which is potentially detectable by large scale structure and $21\, \mathrm{cm} $ observations.
The running of the running is also relatively large becoming close to $10^{-2}$.
Along the way, we find general consistency relations at which observables are subject if the slow-roll approximation is imposed.

Built on

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Similar

F. Adams, J.R. Bond, K. Freese, J. A. Frieman and A. V. Olinto, Phys. Rev. D47
1993
Cited alongside, same era.
G. Germán, G. G. Ross and S. Sarkar, Nucl. Phys. B 608
1999
Cited alongside, same era.
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2000
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K. Freese, C. Savage and W. H. Kinney, Int. J. Mod. Phys. D 16
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2008
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P. A. R. Ade et al. [BICEP2 Collaboration], arXiv:1403.3985 [astro-ph.CO]
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Alex Kehagias, Antonio Riotto, arXiv:1403.4811
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Then

K. Kohri, D. H. Lyth and A. Melchiorri, JCAP 0804
Original
2008
Later among the works it cites.
A. Linde, Phys. Rev. D 49 (1994) 748; Other general references for hybrid inflation are: D.H. Lyth, A. Riotto, Phys. Rep. 314 (1999) 1, arXiv:hep-ph/9807278; A.D. Linde, Lecture Notes in Phys. 738 (2008) 1, arXiv:0705.0164 [hep-th]; M. Shaposhnikov, J. Phys. Conf. Ser. 171 (2009) 012005
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2009
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G. G. Ross, G. Germán, Phys. Lett. B684
2010
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P. Adshead, R. Easther, J. Pritchard, A. Loeb, JCAP 1102(2011)021, arXiv:1007.3748 [astro-ph.CO]
Original
2011
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