Ali, Amna ; Deshamukhya, Atri ; Panda, Sudhakar ; Sami, M. (2011) Inflation with improved D3-brane potential and the fine tunings associated with the model The European Physical Journal C (EPJ C) - Particles and Fields, 71 (6). p. 1672. ISSN 1434-6044
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Official URL: http://www.springerlink.com/content/85294817514233...
Related URL: http://dx.doi.org/10.1140/epjc/s10052-011-1672-8
Abstract
We revisit our earlier investigations of the brane-antibrane inflation in a warped deformed conifold background, reported, where now we include the contributions to the inflation potential arising from imaginary anti-self-dual (IASD) fluxes including the term with irrational scaling dimension discovered recently. We observe that these corrections to the effective potential help in relaxing the severe fine tunings associated with the earlier analysis. Required number of e-folds, observational constraint on COBE normalization and low value of the tensor to scalar ratio are achieved which is consistent with WMAP seven years data.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Springer. |
| ID Code: | 70491 |
| Deposited On: | 21 Nov 2011 07:16 |
| Last Modified: | 21 Nov 2011 07:16 |
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