Ingredients to this analysis

Annihilation cross sectionsin m 0 -m 1/2 plane (μ > 0, A 0 =0)Annihilation cross sections canbe calculated,if masses areknown (couplings as in SM).Assume not only gauge couplingunification at GUT scale, butalso mass unification, i.e. allspin 0 (spin 1/2) particles havemasses m0 (m1/2).For WMAP x-section of≅2.10 -26 cm 3 /s one needsfor small LSP mass (m1/2 ≈ 175GeV) large values of (m0 ≈ 1-2Tev) (and large tan β ≈50)10 -24 EGRETWMAPbbττt tWWmSUGRA: common masses m0 and m1/2 for spin 0 and spin ½ particlesWim de Boer, Karlsruhe Seminar Oxford, May. 3, 2007 26