|
GeV |
K |
z |
sec |
|
|
1018 |
1030 |
1030 |
10-42 |
Planck scale |
|
>1016 |
|
|
|
Perturbative interactions frozen out.
Universe may not be in thermal equilibrium. |
|
1016 |
1028 |
1028 |
10-38 |
GUT SSB? GUT Baryogenesis?
Perturbative interactions in thermal equilibrium. |
|
103 |
1015 |
1015 |
10-12 |
SUSY SSB? |
|
102 |
1014 |
1014 |
10-11 |
Electroweak SSB |
|
10-1 |
1011 |
1011 |
10-3 |
Quark-Hadron transition |
|
10-2 |
1010 |
1010 |
10-2 |
BBN |
|
10-3 |
109 |
109 |
101 |
BBN. Weak interactions freeze
out. Neutrinos decouple. |
|
5×10-4 |
|
|
|
Electron-positron annihilations heat photons but not neutrinos. |
|
10-4 |
108 |
108 |
102 |
BBN |
|
10-8 |
104 |
104 |
1011 |
Matter-radiation equality. Structure
formation begins. |
|
10-9 |
103 |
103 |
1013 |
Last scattering (decoupling of photons). Ions and electrons combine into atoms
(recombination). |
|
10-12 |
100 |
0 |
1018 |
Today. |