Journal
PHYSICS LETTERS B
Volume 738, Issue -, Pages 20-24Publisher
ELSEVIER
DOI: 10.1016/j.physletb.2014.09.009
Keywords
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Funding
- NSERC
- Canada Research Chairs Program
- National Research Foundation of Korea [2013R1A1A1006701]
- Max Planck-Gesellschaft
- Korea Ministry of Education, Science and Technology
- Gyeongsangbuk-Do
- Pohang City
- National Research Foundation of Korea [2013R1A1A1006701] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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We describe extended theories which shares the gauge transformation symmetry of the T-models, and takes the T-models as well as Starobinsky model as special cases. We derive a general relation between the two slow-roll parameters, and find that a large class of models can be embedded. Such models include more general Starobinsky-like inflation as well as the chaotic inflation with a large tensor-to-scalar ratio consistent with the BICEP2 result. (C) 2014 The Authors. Published by Elsevier B.V.
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