Do We Have Evidence for New Physics in the Sky?

Details Do We Have Evidence for New Physics in the Sky? Do We Have Evidence for New Physics in the Sky?

2005-10-12

arxiv.org/abs/hep-th/0510101v1

Mod.Phys.Lett. A21 (2006) 1-22

Physics

High Energy Physics

High Energy Physics - Theory

Invited Review to appear in MPLA. Based on work done with Steen Hannestad

Scientific paper

10.1142/S0217732306019268

Predicting signatures of string theory on cosmological observables is not sufficient. Often the observable effects string theory may impact upon the cosmological arena may equally be predicted by features of inflationary physics. The question: what observable signatures are unique to new physics, is thus of crucial importance for claiming evidence for the theory. Here we discuss recent progress in addressing the above question. The evidence relies on identifying discrepancies between the source terms that give rise to large scale structure (LSS) and CMB, by cross-correlating the weak lensing potential maps LSS with the CMB spectra.

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