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Large extra dimensions, the galaxy power spectrum and the end of inflation | Malcolm Fairbairn
; Louise M Griffiths
; | Date: |
29 Nov 2001 | Journal: | JHEP 0202 (2002) 024 | Subject: | hep-ph astro-ph hep-th | Affiliation: | ULB), Louise M Griffiths (Oxford | Abstract: | We consider the production of gravitational KK modes via cosmological photon-photon and electron-positron annihilation in models with large factorisable extra dimensions. We place constraints on this production using recent results from a joint analysis of the power spectra of the 2dF Galaxy Redshift Survey (2dFGS) and the cosmic microwave background (CMB) anisotropies. We obtain a more accurate upper limit for the temperature corresponding to matter-radiation equality and show that, even for the case of 6 extra dimensions and a fundamental scale of 1 TeV, a period of inflation is required that ends at a temperature much lower than that of the QCD phase transition. | Source: | arXiv, hep-ph/0111435 | Services: | Forum | Review | PDF | Favorites |
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