par Fairbairn, Malcolm ;Griffiths, Louise L.M.
Référence The journal of high energy physics (Online), 6, 2, page (515-526)
Publication Publié, 2002-02
Article révisé par les pairs
Résumé : 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. © SISSA/ISAS 2002.