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Large extra dimensions, the galaxy power spectrum and the end of inflation

Malcolm Fairbairn·Louise M Griffiths
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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.

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Malcolm Fairbairn, Louise M Griffiths. 2002-02-19. Large extra dimensions, the galaxy power spectrum and the end of inflation. https://doi.org/10.1088/1126-6708%2F2002%2F02%2F024

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