Report
Inflationary Predictions and Moduli Masses
| العنوان: | Inflationary Predictions and Moduli Masses |
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| المؤلفون: | Das, Kumar, Dutta, Koushik, Maharana, Anshuman |
| سنة النشر: | 2015 |
| المجموعة: | Astrophysics High Energy Physics - Phenomenology High Energy Physics - Theory |
| مصطلحات موضوعية: | High Energy Physics - Phenomenology, Astrophysics - Cosmology and Nongalactic Astrophysics, High Energy Physics - Theory |
| الوصف: | A generic feature of inflationary models in supergravity/string constructions is vacuum misalignment for the moduli fields. The associated production of moduli particles leads to an epoch in the post-inflationary history in which the energy density is dominated by cold moduli particles. This modification of the post-inflationary history implies that the preferred range for the number of e-foldings between horizon exit of the modes relevant for CMB observations and the end of inflation $(N_k)$ depends on moduli masses. This in turn implies that the precision CMB observables $n_s$ and $r$ are sensitive to moduli masses. We analyse this sensitivity for some representative models of inflation and find the effect to be highly relevant for confronting inflationary models with observations. Comment: 17 pages, 3 figures; v2 minor additions in text |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1016/j.physletb.2015.10.041 |
| URL الوصول: | http://arxiv.org/abs/1506.05745 |
| رقم الانضمام: | edsarx.1506.05745 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1016/j.physletb.2015.10.041 |
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